Relevant bibliographies by topics / Laser beams

Academic literature on the topic 'Laser beams'

Author: Grafiati
Published: 4 June 2021
Last updated: 29 July 2024

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Journal articles on the topic "Laser beams"

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Singh, Arvinder, and Naveen Gupta. "Electron plasma wave excitation by beating of two q-Gaussian laser beams in collisionless plasma." Laser and Particle Beams 34, no. 2 (February 18, 2016): 230–41. http://dx.doi.org/10.1017/s026303461500097x.

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AbstractThis paper presents a scheme for excitation of an electron-plasma wave (EPW) by beating two q-Gaussian laser beams in an underdense plasma where ponderomotive nonlinearity is operative. Starting from nonlinear Schrödinger-type wave equation in Wentzel–Kramers–Brillouin (WKB) approximation, the coupled differential equations governing the evolution of spot size of laser beams with distance of propagation have been derived. The ponderomotive nonlinearity depends not only on the intensity of first laser beam, but also on that of second laser beam. Therefore, the dynamics of one laser beam affects that of other and hence, cross-focusing of the two laser beams takes place. Due to nonuniform intensity distribution along the wavefronts of the laser beams, the background electron concentration is modified. The amplitude of EPW, which depends on the background electron concentration, is thus nonlinearly coupled with the laser beams. The effects of ponderomotive nonlinearity and cross-focusing of the laser beams on excitation of EPW have been incorporated. Numerical simulations have been carried out to investigate the effect of laser and plasma parameters on cross-focusing of the two laser beams and further its effect on EPW excitation.
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Singh, Arvinder, and Naveen Gupta. "Beat wave excitation of electron plasma wave by coaxial cosh-Gaussian laser beams in collisional plasma." Laser and Particle Beams 33, no. 4 (July 14, 2015): 621–32. http://dx.doi.org/10.1017/s0263034615000646.

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AbstractThis paper presents a scheme for beat wave excitation of an electron plasma wave (EPW) by cross-focusing of two intense cosh-Gaussian (ChG) laser beams in an under dense collisional plasma. The plasma wave is generated on account of beating of two ChG laser beams of frequencies ω1 and ω2. Starting from Maxwell's equations, coupled differential equations governing the evolution of spot size of laser beams with distance of propagation have been derived by using Moment theory approach in Wentzel–Kramers–Brillouin approximation. The collisional nonlinearity depends not only on the intensity of first laser beam, but also on that of second laser beam. Therefore, dynamics of first laser beam affects that of other and hence cross-focusing of the two laser beams takes place. Numerical simulations have been carried out to investigate the effect of laser as well as plasma parameters on cross-focusing of laser beams and further its effect on power of excited EPW. It has been found that decentered parameters of the two laser beams have significant effect on power of EPW.
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Xiong, Liang Cai, Quan Sheng Zhou, and Peng Chen. "Vibration Analysis of Different Micro-Beams with Laser Ablation." Applied Mechanics and Materials 462-463 (November 2013): 428–31. http://dx.doi.org/10.4028/www.scientific.net/amm.462-463.428.

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The dynamic response of different micro-beams after laser excitation experiments have been investigated in this paper. The impact force that induces the vibration of micro-beams is the interaction of focused pulse laser and tested beams. The impact response of micro-beams after being excited is measured by Laser Doppler Vibrometer. Different beams such as cantilever beam, L-shaped beam are employed in our experiments. Comparisons of the vibration velocity and its frequencies of different beams have also been performed. Experimental results show that the mechanical effects of laser shock do really exist and can be utilized.
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Sharma, Prerana. "Cross Focusing of two Coaxial Gaussian Beams with Relativistic and Ponderomotive Nonlinearity." Zeitschrift für Naturforschung A 67, no. 1-2 (February 1, 2012): 10–14. http://dx.doi.org/10.5560/zna.2011-0064.

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This paper presents the cross focusing of two high power lasers by taking off-axial contributions of the laser beams in a collisionless plasma. Due to relativistic and ponderomotive nonlinearities the two laser beams affect the dynamics of each other and cross focusing takes place. The expressions for the laser beam intensities by using the eikonal method are derived. The contributions of the r2 and r4 terms are incorporated. By expanding the eikonal and the other relevant quantities up to the fourth power of r, the solution of the pump laser beam is obtained within the extended paraxial ray approximation. Filamentary structures of the laser beams are observed due to the relativistic and the ponderomotive nonlinearity. The focusing of the laser beams is shown to become fast in the extended paraxial region. Using the laser beam and the plasma parameters, appropriate for beat wave processes, the filaments of the laser beams are studied and the relevance of these results to beat wave processes is pointed out.
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Yang, Q. N., X. W. Zhang, and X. K. Dai. "A simulation and experimental study of dual-wavelength dye laser amplifiers." Journal of Physics: Conference Series 2147, no. 1 (January 1, 2022): 012011. http://dx.doi.org/10.1088/1742-6596/2147/1/012011.

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Abstract AVLIS requires a high average power laser beam of multiple wavelengths. There are two general ways to achieve such a beam. One is generating different wavelength laser beams by individual dye laser MOPA chains, then spatially combining them by a beam combiner. The other is combining different wavelength laser beams into one beam first, then co-amplifying it by a common MOPA chain. The latter one is more efficient. To further develop the method, this paper demonstrates a simulation and experimental study of dual-wavelength dye laser amplifiers. The one of the most critical parameters of a dual-wavelength laser beam is the power ratio of the two constituent beams, which can vary during the co-amplification. The simulation results show that for two laser beams with small wavelength difference, the spatial combination mismatches of two beams are the more dominant factor than the spectral differences in affecting the power ratio during the co-amplification. The result of the experiment is in good agreement with the simulation.
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Kumar, S., P. K. Gupta, R. K. Singh, R. Uma, and R. P. Sharma. "Self-compression of two co-propagating laser pulse having relativistic nonlinearity in plasma." Laser and Particle Beams 35, no. 4 (November 20, 2017): 722–29. http://dx.doi.org/10.1017/s0263034617000787.

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AbstractThe study proposes a semi-analytical model for the pulse compression of two co-propagating intense laser beams having Gaussian intensity profile in the temporal domain. The high power laser beams create the relativistic nonlinearity during propagation in plasma, which leads to the modification of the refractive index profile. The co-propagating laser beams get self- compressed by virtue of group velocity dispersion and induced nonlinearity. The induced nonlinearity in the plasma broadens the frequency spectrum of the pulse via self-phase modulation, turn to shorter the pulse duration and enhancement of laser beam intensity. The nonlinear Schrodinger equations were set up for co-propagating laser beams in plasmas and have been solved in Matlab by considering paraxial approximation. The propagation characteristics of both laser beams inside plasma are divided into three regions through the critical divider curve, which has been plotted between pulse width τ01 and laser beam power P01. Based on the preferred value of critical parameters, these regions are oscillatory compression, oscillatory broadening, and steady broadening. In findings, it is observed that the compression of the laser beam depends on the combined intensity of both beams, plasma density, and initial pulse width.
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Kotlyar, V. V., A. A. Kovalev, and E. G. Abramochkin. "Asymmetric hypergeometric laser beams." Computer Optics 43, no. 5 (October 2019): 735–40. http://dx.doi.org/10.18287/2412-6179-2019-43-5-735-740.

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Here we study asymmetric Kummer beams (aK-beams) with their scalar complex amplitude being proportional to the Kummer function (a degenerate hypergeometric function). These beams are an exact solution of the paraxial propagation equation (Schrödinger-type equation) and obtained from the conventional symmetric hypergeometric beams by a complex shift of the transverse coordinates. On propagation, the aK-beams change their intensity weakly and rotate around the optical axis. These beams are an example of vortex laser beams with a fractional orbital angular momentum (OAM), which depends on four parameters: the vortex topological charge, the shift magnitude, the logarithmic axicon parameter and the degree of the radial factor. Changing these parameters, it is possible to control the beam OAM, either continuously increasing or decreasing it.
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Lisiecki, A. "Comparison of Titanium Metal Matrix Composite Surface Layers Produced During Laser Gas Nitriding of Ti6Al4V Alloy by Different Types of Lasers." Archives of Metallurgy and Materials 61, no. 4 (December 1, 2016): 1777–84. http://dx.doi.org/10.1515/amm-2016-0287.

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Abstract The article presents the results of a comparative study of the nitriding process of titanium alloy substrate using two lasers with different characteristics of laser beams. One of the applied lasers was a high power diode laser emitting at a dominant wavelength of 808 nm, with a rectangular laser beam spot, and multimode energy distribution across the spot. The second laser was a solid state Yb:YAG disk laser emitting at a wavelength of 1.03 μm, with a circular beam spot, characterized by near Gaussian energy distribution across the spot. In a case of both lasers single stringer beads with a similar width and at similar energy input were produced. As a result of melting of the substrate with a laser beam in a pure gaseous nitrogen atmosphere composite surface layers with in situ precipitated titanium nitrides embedded in the metallic matrix of titanium alloy were produced, in both cases. However, the surface topography and structure is different for the surface layers produce by different lasers at the same processing parameters and width of laser beams.
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Safdar, Shakeel, Lin Li, M. A. Sheikh, and Zhu Liu. "An Analysis of the Effect of Laser Beam Geometry on Laser Transformation Hardening." Journal of Manufacturing Science and Engineering 128, no. 3 (December 6, 2005): 659–67. http://dx.doi.org/10.1115/1.2193547.

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The effect of transformation hardening depends upon both heating and cooling rates. It is desirable to have a slow heating rate and a rapid cooling rate to achieve full transformation. To date laser transformation hardening has been carried out using circular or rectangular beams which result in rapid heating and cooling. Although the use of different beam intensity distributions within the circular or rectangular laser beams has been studied to improve the process, no other beam geometries have been investigated so far for transformation hardening. This paper presents an investigation into the effects of different laser beam geometries in transformation hardening. Finite element modeling technique has been used to simulate the steady state and transient effects of moving beams in transformation hardening of EN 43A steel. The results are compared with experimental data. The work shows that neither of the two commonly used beams, circular and rectangular, are optimum beam shapes for transformation hardening. The homogenization temperature exceeds the melting point for these beam shapes for the usual laser scanning speeds and power density. Triangular beam geometry has been shown to produce the best thermal history to achieve better transformation and highest hardness due to slower heating without sacrificing the processing rate and hardening depths.
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Laksono, Pranoto Budi. "A STUDY OF THE INFLUENCE OF 650 nm LASER INTERFERENCE ON VISIBLE LASER LIGHT COMMUNICATION SYSTEM." TEKNOKOM 4, no. 2 (September 1, 2021): 60–65. http://dx.doi.org/10.31943/teknokom.v4i2.66.

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Visible Laser Light Communication System (VLLC) is a wireless communication system, using laser as the medium. In the data transfer process, it is possible to have optical interference where 2 laser beams coincide with one point on the reflector. Research on the effect of laser source interference has been carried out by several researchers including mitigation actions to reduce its effects. This experiment uses 2 optical distance sensors that produce a laser with a wavelength of 650 nm with a power <=4.1 mW and with the direction of the laser beam both of them cross each other. To determine the effect of the interference of two laser beams when crossing the communication process in the visible light communication system, a reflector is used which can capture the two laser beams and the reflector can be shifted gradually so that a condition can be obtained where the two laser beams meet at one point. From the measurements made at the points after the laser beam crossing, the measurements at the point where the beam crossed, and the measurements at the points before the beam crossing, it was obtained data, at the exact point where the laser beam crossed the interference occurred, which is indicated by unstable output voltage of the two lasers, so that communication at the point of intersection is disrupted. However, if outside the point of contact both before and after the point of contact, interference and communication systems will not occur.
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Dissertations / Theses on the topic "Laser beams"

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Ratsibi, Humbelani Edzani. "Laser drilling of metals and glass using zero-order bessel beams." University of the Western Cape, 2013. http://hdl.handle.net/11394/5428.

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>Magister Scientiae - MSc
This dissertation consists of two main sections. The first section focuses on generating zero order Bessel beams using axicons. An axicon with an opening angle y = 5⁰ was illuminated with a Gaussian beam of width ω₀ = 1.67 mm from a cw fiber laser with central wavelength λ = 1064 nm to generate zero order Bessel beams with a central spot radius r₀ = 8.3 ± 0.3 μm and propagation distance ½zmax = 20.1 ± 0.5 mm. The central spot size of a Bessel beam changes slightly along the propagation distance. The central spot radius r₀ can be varied by changing the opening angle of the axicon, y, and the wavelength of the beam. The second section focuses on applications of the generated Bessel beams in laser microdrilling. A Ti:Sapphire pulsed femtosecond laser (λ = 775 nm, ω₀ = 2.5 mm, repetition rate kHz, pulse energy mJ, and pulse duration fs) was used to generate the Bessel beams for drilling stainless steel thin sheets of thickness 50 μm and 100 μm and microscopic glass slides 1 mm thick. The central spot radius was r₀ = 15.9 ± 0.3 μm and ½zmax = 65.0 ± 0.5 mm. The effect of the Bessel beam shape on the quality of the holes was analysed and the results were discussed. It was observed that Bessel beams drill holes of better quality on transparent microscopic glass slides than on stainless steel sheet. The holes drilled on stainless steel sheets deviated from being circular on both the top and bottom surface for both thicknesses. However the holes maintained the same shape on both sides of each sample, indicating that the walls are close to being parallel. The holes drilled on the glass slides were circular and their diameters could be measured. The measured diameter (15.4±0.3 μm) of the hole is smaller than the diameter of the central spot (28.2 ± 0.1 μm) of the Bessel beam. Increasing the pulse energy increased the diameter of the drilled hole to a value close to the measured diameter of the central spot.
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Ghneim, Said Nimr 1953. "Laser pulse amplification through a laser-cooled active plasma." Thesis, The University of Arizona, 1988. http://hdl.handle.net/10150/276868.

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Recent advances in experimental laser cooling have shown the possibility of stopping an atomic beam using the light pressure force of a counter-propagating laser wave. As an application to laser cooling, it is proposed to build a single frequency cesium laser that has a narrow linewidth. Laser cooling techniques are used to cool an atomic beam of cesium to an average velocity of 5 m/s, corresponding to a temperature of 0.2°K. Expressions of the basic forces that a laser wave exerts on atoms are derived according to a semi-classical approach. The experimental problems and methods of avoiding these problems are treated in detail. A computer Monte-Carlo simulation is used to discuss the feasibility of building the proposed laser. This simulation was done for an ensemble of 10,000 atoms of cesium, and it included the effects of the gravitational force and the related experimental variables. The possibility of building single frequency lasers that use a cooled medium of noble gases, and many other applications of laser cooling are briefly discussed at the end of this work.
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Kaluza, Malte Christoph. "Characterisation of laser-accelerated proton beams." [S.l.] : [s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=972318054.

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Serkan, Mert Kirkici Hulya. "Laser beam shaping optical system design methods and their application in edge-emitting semiconductor laser-based lidar systems." Auburn, Ala., 2007. http://repo.lib.auburn.edu/2007%20Fall%20Dissertations/Serkan_Mert_22.pdf.

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Singh, Abhyudai. "A mechanistic approach to tuning of MEMS resonators." Diss., Connect to online resource - MSU authorized users, 2006.

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Small, Douglas W. "Interaction of laser beams with relativistic electrons." Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1997. http://handle.dtic.mil/100.2/ADA337553.

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Malton, S. P. "Laser interactions with high brightness electron beams." Thesis, University College London (University of London), 2007. http://discovery.ucl.ac.uk/1444964/.

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The International Linear Collider will be a high-precision machine to study the next energy frontier in particle physics. At the TeV energy scale, the ILC is expected to deliver luminosities in excess of 1034 cni" 2s_1. In order to achieve this, beam conditions must be monitored throughout the machine. Measurment of the beam emittance is essential to ensuring that the high luminosity can be provided at the interaction point. At the de sign beam sizes in the ILC beam delivery system, the Laserwire provides a non-invasive real-time method of measuring the emittance by the method of inverse Compton scattering. The prototype Laserwire at the PETRA stor age ring has produced consistent results with measured beam sizes of below 100 /nn. The Energy Recovery Linac Prototype (ERLP) is a technology testbed for the 4th Generation Light Source (4GLS). Inverse Compton scattering can be used in the ERLP as a proof of concept for a proposed 4GLS upgrade, and to produce soft X-rays for condensed matter experiments. The design constraints for the main running mode of the ERLP differ from those required for inverse Compton scattering. Suitable modifications to the optical lattice have been developed under the constraint that no new magnetic structures may be introduced, and the resulting photon distributions are described.
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McKenna, Colm Francis. "A study of laser-produced plasma beams." Thesis, Queen's University Belfast, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.492021.

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Pulsed Laser Deposition is a flexible and powerful tool for producing thin films of many materials. Optical Absorption Spectroscopy and Laser Induced Fluorescence can be used to characterise plasma plumes and jets derived from plumes to allow us to move from an empirical approach to P.ulsed Laser Deposition to a more quantitative approach. In this thesis, several aspects of such quantitative measurements are applied to titanium based plasma plumes produced using a KrF (248nm, 30ns) excimer laser system and probed using a tuneable dye laser. Using optical absorption spectroscopy we estimated the spatially resolved number density of atomic titanium in plasma plumes, produced with an average KrF laser fluence of 2.5 J/cm2 , to vary from 5 'x 1012 to 2 x 1013 cm-3 • Simultaneous laser induced fluorescence yielded an estimate of the atomic temperature of 1.7 ± 0.3 eV. The bandwidth of the pumping laser was reduced by up to 30% with an intracavity etalon in the pump laser and the LIF images produced for this and the standard case were used to calculate Ti I species temperature. The introduction of a pinhole on the main expansion axis of a plume restricts the lateral expansion and produces a 'plasma jet', generating of a more homogeneous ion source. Estimates of the temporal and spatial evolution of the relative proportion of ionic material in plasma jets were also made. A fundamental problem with the PLD process is the production of micron sized particulates during the laser ablation process. The interaction of two plasma plumes has been shown to remove particulates from the thin film. The LIF technique is used to characterise colliding plumes which are pumped by a tuneable dye laser.
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De, Kock Trevor Neil. "The development and evaluation of a Nd:YAG laser incorporating an unstable resonator." Thesis, Rhodes University, 1986. http://hdl.handle.net/10962/d1008566.

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Introduction: For approximately the last eight years the Laser Section of the National Physical Research Laboratory (NPRL) has been interested in inter alia, pulsed solid-state lasers and in particular, Nd:YAG. Investigations of various resonator types were undertaken with a view to the improvement of the laser parameters such as output energy, pulse width, beam quality and sensitivity to mirror misalignment. In 1980 a Nd: YAG laser employing a rotating prism Q-switch was constructed (Preussler (1980)). It involves rotating one of the two cavity reflectors so that they are parallel for only a brief instant in time. Typically the prism must rotate at a speed of 20 000 r.p.m. to ensure a single pulse output. Such lasers suffer from the tendency to emit multiple pulses, they are very noisy and they require frequent maintenance because of the short lifetime of the bearings. A resonator employing conventional curved mirrors and an electro-optical Q-switch was constructed in 1980 (Robertson & Preussler (1982)). In 1981 an electro-optically Q-swi tched laser making use of a crossed Porro-prism resonator was investigated due to its relative insensitivity to misalignment of the reflectors compared with the conventional mirror resonator (Nortier (1981)). Improvements in terms of output power, beam divergence and beam quality can be achieved by making use of a so-called unstable resonator. Such a laser has been investigated and is reported on in this study. Chapter 2 provides some background into laser theory and operation while chapter 3 deals with the theory of the unstable resonator. Chapter 4 provides details of the experimental equipment and techniques used in the work and chapter 5 discusses the evaluation of the project and results obtained.
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Becker, Stefan. "Dynamics and Transport of Laser-Accelerated Particle Beams." Diss., lmu, 2010. http://nbn-resolving.de/urn:nbn:de:bvb:19-114449.

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Books on the topic "Laser beams"

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Kotlyar, V. V., A. A. Kovalev, and A. P. Porfirev. Vortex Laser Beams. Boca Raton : Taylor & Francis, a CRC title, part of the Taylor & Francis imprint, a member of the Taylor & Francis Group, the academic division of T&F Informa, plc, 2018.: CRC Press, 2018. http://dx.doi.org/10.1201/9781351009607.

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C, Wade Richard, Ulrich Peter B, and Society of Photo-Optical Instrumentation Engineers., eds. Intense laser beams. Bellingham, Wash: SPIE, 1992.

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Maxim, Thys, and Desmet Eugene, eds. Laser beams: Theory, properties, and applications. Hauppauge, N.Y: Nova Science Publishers, 2009.

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Pyatakhin, M. V. Spatiotemporal characteristics of laser emission. Commack, N.Y: Nova Science Pub., 1994.

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Aḥmadī, Fāliḥ Ḥasan. al-Layzar wa-taṭbīqatuh. Baghdād: Dār al-Shuʼūn al-Thaqāfīyah al-ʻĀmmah, 1988.

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Farley, Dixie. Laser treatment to go: Outpatient uses of healing light abound. Rockville, Md: Dept. of Health and Human Services, Public Health Service, Food and Drug Administration, Office of Public Affairs, 1988.

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Minogin, V. G. Laser light pressure on atoms. New York: Gordon and Breach Science Publishers, 1987.

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Gao, Chunqing. Characterization and transformation of astigmatic laser beams. Berlin: Wissenschaft und Technik Verlag, 1999.

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Ananʹev, I︠U︡riĭ Alekseevich. Laser resonators and the beam divergence problem. Bristol: Adam Hilger, 1992.

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Hiroyuki, Yokoyama, and Ujihara Kikuo, eds. Spontaneous emission and laser oscillation in microcavities. Boca Raton: CRC Press, 1995.

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Book chapters on the topic "Laser beams"

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Poprawe, Reinhart, Konstantin Boucke, and Dieter Hoffman. "Laser Beams." In Tailored Light 1, 111–39. Berlin, Heidelberg: Springer Berlin Heidelberg, 2018. http://dx.doi.org/10.1007/978-3-642-01234-1_5.

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Kotlyar, V. V., A. A. Kovalev, and A. P. Porfirev. "Accelerating Beams." In Vortex Laser Beams, 141–58. Boca Raton : Taylor & Francis, a CRC title, part of the Taylor & Francis imprint, a member of the Taylor & Francis Group, the academic division of T&F Informa, plc, 2018.: CRC Press, 2018. http://dx.doi.org/10.1201/9781351009607-5.

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Kotlyar, V. V., A. A. Kovalev, and A. P. Porfirev. "Pearcey Laser Beams." In Vortex Laser Beams, 239–57. Boca Raton : Taylor & Francis, a CRC title, part of the Taylor & Francis imprint, a member of the Taylor & Francis Group, the academic division of T&F Informa, plc, 2018.: CRC Press, 2018. http://dx.doi.org/10.1201/9781351009607-8.

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Kotlyar, V. V., A. A. Kovalev, and A. P. Porfirev. "A Spiral Phase Plate for an Optical Vortices Generation." In Vortex Laser Beams, 1–43. Boca Raton : Taylor & Francis, a CRC title, part of the Taylor & Francis imprint, a member of the Taylor & Francis Group, the academic division of T&F Informa, plc, 2018.: CRC Press, 2018. http://dx.doi.org/10.1201/9781351009607-1.

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Kotlyar, V. V., A. A. Kovalev, and A. P. Porfirev. "Perfect Vortices." In Vortex Laser Beams, 321–47. Boca Raton : Taylor & Francis, a CRC title, part of the Taylor & Francis imprint, a member of the Taylor & Francis Group, the academic division of T&F Informa, plc, 2018.: CRC Press, 2018. http://dx.doi.org/10.1201/9781351009607-10.

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Kotlyar, V. V., A. A. Kovalev, and A. P. Porfirev. "Hankel Optical Vortices." In Vortex Laser Beams, 349–78. Boca Raton : Taylor & Francis, a CRC title, part of the Taylor & Francis imprint, a member of the Taylor & Francis Group, the academic division of T&F Informa, plc, 2018.: CRC Press, 2018. http://dx.doi.org/10.1201/9781351009607-11.

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Kotlyar, V. V., A. A. Kovalev, and A. P. Porfirev. "Conclusion." In Vortex Laser Beams, 379–83. Boca Raton : Taylor & Francis, a CRC title, part of the Taylor & Francis imprint, a member of the Taylor & Francis Group, the academic division of T&F Informa, plc, 2018.: CRC Press, 2018. http://dx.doi.org/10.1201/9781351009607-12.

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Kotlyar, V. V., A. A. Kovalev, and A. P. Porfirev. "Elliptic Laguerre-Gauss Beams." In Vortex Laser Beams, 45–62. Boca Raton : Taylor & Francis, a CRC title, part of the Taylor & Francis imprint, a member of the Taylor & Francis Group, the academic division of T&F Informa, plc, 2018.: CRC Press, 2018. http://dx.doi.org/10.1201/9781351009607-2.

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Kotlyar, V. V., A. A. Kovalev, and A. P. Porfirev. "Hypergeometric Vortices." In Vortex Laser Beams, 63–126. Boca Raton : Taylor & Francis, a CRC title, part of the Taylor & Francis imprint, a member of the Taylor & Francis Group, the academic division of T&F Informa, plc, 2018.: CRC Press, 2018. http://dx.doi.org/10.1201/9781351009607-3.

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Kotlyar, V. V., A. A. Kovalev, and A. P. Porfirev. "Hankel-Bessel Laser Beams." In Vortex Laser Beams, 127–40. Boca Raton : Taylor & Francis, a CRC title, part of the Taylor & Francis imprint, a member of the Taylor & Francis Group, the academic division of T&F Informa, plc, 2018.: CRC Press, 2018. http://dx.doi.org/10.1201/9781351009607-4.

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Conference papers on the topic "Laser beams"

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Dreyfus, R. W., R. Walkup, and J. M. Jasinski. "Laser Interferometry and Laser Induced Fluorescence Studies of Laser Etching." In Microphysics of Surfaces, Beams, and Adsorbates. Washington, D.C.: Optica Publishing Group, 1985. http://dx.doi.org/10.1364/msba.1985.mb5.

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Excimer laser ablation of solids with laser power densities in the range 106 to 109 W/cm2 is becoming increasingly important in laser processing of materials for microelectronics. The ablation process produces an intense plume of gas phase material which expands rapidly away from the ablated surface. We report on real time interferometric measurements of free electron density and laser induced fluorescence studies of atoms and molecules in the plume, with the objective of understanding the dynamics of material ablation.
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Kovalchuk, Boris M. "E-Beam Accelerator For Eximer Laser." In BEAMS 2002: 14th International Conference on High-Power Particle Beams. AIP, 2002. http://dx.doi.org/10.1063/1.1530844.

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Sesselmann, W., and T. J. Chuang. "Chlorine Surface Interactions and Laser Induced Surface Etching Reactions." In Microphysics of Surfaces, Beams, and Adsorbates. Washington, D.C.: Optica Publishing Group, 1985. http://dx.doi.org/10.1364/msba.1985.wc4.

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It is by now quite well established that photon beams, in particular lasers, can be used to induce or enhance chemical reactions between a gas and a solid surface [1]. Also, recent advances in applications of lasers to perform chemical etching and vapor deposition have raised firm expectation that the laser technique may have significant impact on processing materials for microelectronics [2]. In laser induced chemical etching of solids, the fundamental surface processes include the reaction between the adsorbate and substrate and the vaporization of product species. In order to better understand the radiation-gas-surface interaction mechanisms, we have carried out experiments with ESCA and Auger depth profiling, and time-resolved mass spectrometry in conjunction with laser irradiation of solid surfaces. Specifically, we have investigated Si/Cl2, Ni-Fe/Cl2, and Ag/Cl2 systems.
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Aoyagi, Yoshinobu, Atsutoshi Doi, Sohachi Iwai, and Susumu Namba. "Atomic Layer Growth of GaAs by Pulsed Laser MOVPE." In Microphysics of Surfaces, Beams, and Adsorbates. Washington, D.C.: Optica Publishing Group, 1987. http://dx.doi.org/10.1364/msba.1987.tuc2.

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Atomic layer epitaxy has recently been interested in by many workers since the epitaxy seems to be a promising candidate for producing thin epitaxial layers and abrupt interfaces controlled in atomic scale. In this epitaxy As and Ga atoms are alternatively deposited on the GaAs substrate, layer by layer, and it is essential to realize the precise atomic layer epitaxy (SME, Stepwise Monoatomic layer Epitaxy(1)) that the deposition of Ga or As atom should be stopped automatically at the 100 % surface coverage of each atoms.
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Abramochkin, Eugeny G., and Vladimir G. Volostnikov. "Spiral laser beams." In Laser Optics 2000, edited by Leonid N. Soms and Vladimir E. Sherstobitov. SPIE, 2001. http://dx.doi.org/10.1117/12.417741.

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Gao, C., H. Weber, and M. Gao. "Characterization of laser beams by using intensity moments." In ICO20:Lasers and Laser Technologies, edited by Y. C. Chen, Dianyuan Fan, Chunqing Gao, and Shouhuan Zhou. SPIE, 2006. http://dx.doi.org/10.1117/12.667325.

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Sutton, George. "Diffractionless Laser Beams." In 47th AIAA Aerospace Sciences Meeting including The New Horizons Forum and Aerospace Exposition. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2009. http://dx.doi.org/10.2514/6.2009-814.

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Eroshenko, V. A., Stanislav A. Sukharev, Gennadi A. Kirillov, Gennady G. Kochemasov, Sergey P. Smyshlyaev, Stanislav M. Kulikov, and S. N. Pevny. "Photodissociation of alkyliodides and inversion accumulation in iodine laser in the presence of vacuum ultraviolet radiation." In Intense Laser Beams and Applications. SPIE, 1993. http://dx.doi.org/10.1117/12.145207.

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Masychev, Victor I., Vladislav S. Alejnikov, and Valentin K. Sysoev. "Low-power instability of multiline CO lasers." In Intense Laser Beams and Applications. SPIE, 1993. http://dx.doi.org/10.1117/12.145229.

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Zhong, Minlin, Yongqiang Yang, and Huanran Yun. "Microstructure and oxidation resistance of the laser-clad Co22Cr12Al0.7Y alloys." In Intense Laser Beams and Applications. SPIE, 1993. http://dx.doi.org/10.1117/12.145232.

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Reports on the topic "Laser beams"

1

Roberson, Stephen, and Paul Pellegrino. Compression of Ultrafast Laser Beams. Fort Belvoir, VA: Defense Technical Information Center, March 2016. http://dx.doi.org/10.21236/ad1006025.

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Schiffer, J. P., J. S. Hangst, and J. S. Nielsen. Laser-cooled continuous ion beams. Office of Scientific and Technical Information (OSTI), August 1995. http://dx.doi.org/10.2172/166363.

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Fernandez, Juan C. Applications of laser-driven ion beams. Office of Scientific and Technical Information (OSTI), November 2013. http://dx.doi.org/10.2172/1104907.

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Cousineau, Sarah, Alexander Aleksandrov, Yun Liu, David Jonson, and Timofey Gorlov. Laser Stripping for High Intensity Proton Beams. Office of Scientific and Technical Information (OSTI), July 2018. http://dx.doi.org/10.2172/1496019.

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Ross, Marc C. LASER-BASED PROFILE MONITOR FOR ELECTRON BEAMS. Office of Scientific and Technical Information (OSTI), May 2003. http://dx.doi.org/10.2172/813156.

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Misconi, N. Y., K. F. Ratcliff, and E. T. Rusk. The Interaction of Small Particles with Laser Beams. Fort Belvoir, VA: Defense Technical Information Center, December 1987. http://dx.doi.org/10.21236/ada190716.

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Hangst, Jeffrey Scott. Laser cooling of a stored ion beam: A first step towards crystalline beams. Office of Scientific and Technical Information (OSTI), September 1992. http://dx.doi.org/10.2172/10138609.

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Hangst, J. S. Laser cooling of a stored ion beam: A first step towards crystalline beams. Office of Scientific and Technical Information (OSTI), September 1992. http://dx.doi.org/10.2172/6731343.

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Shafer, R. E. Laser diagnostic for high current H{sup {minus}} beams. Office of Scientific and Technical Information (OSTI), May 1998. http://dx.doi.org/10.2172/304131.

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Penano, Joseph, Phillip Sprangle, Antonio Ting, Richard Fischer, Bahman Hafizi, and Philip Serafim. Optical Quality of High-Power Laser Beams in Lenses. Fort Belvoir, VA: Defense Technical Information Center, October 2008. http://dx.doi.org/10.21236/ada502656.

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