Academic literature on the topic 'Beam shaping'
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Journal articles on the topic "Beam shaping"
Dickey, Fred M. "Laser Beam Shaping." Optical Engineering 42, no. 11 (November 1, 2003): 3077. http://dx.doi.org/10.1117/1.1624611.
Full textDickey, Fred M. "Laser Beam Shaping." Optics and Photonics News 14, no. 4 (April 1, 2003): 30. http://dx.doi.org/10.1364/opn.14.4.000030.
Full textHao, Bing, and James Leger. "Polarization beam shaping." Applied Optics 46, no. 33 (November 19, 2007): 8211. http://dx.doi.org/10.1364/ao.46.008211.
Full textShiloh, Roy, Roei Remez, and Ady Arie. "Electron-Beam Shaping." Microscopy and Microanalysis 21, S3 (August 2015): 2305–6. http://dx.doi.org/10.1017/s1431927615012301.
Full textJabbour, Toufic G., and Stephen M. Kuebler. "Vectorial beam shaping." Optics Express 16, no. 10 (May 2, 2008): 7203. http://dx.doi.org/10.1364/oe.16.007203.
Full textLeavitt, Dennis D. "Dynamic Beam Shaping." Medical Dosimetry 15, no. 2 (1990): 47–50. http://dx.doi.org/10.1016/0958-3947(90)90033-e.
Full textLavelle, John, and Créidhe O'Sullivan. "Beam shaping using Gaussian beam modes." Journal of the Optical Society of America A 27, no. 2 (January 29, 2010): 350. http://dx.doi.org/10.1364/josaa.27.000350.
Full textSalik, Boaz, Joseph Rosen, and Ammon Yariv. "One-dimensional beam shaping." Journal of the Optical Society of America A 12, no. 8 (August 1, 1995): 1702. http://dx.doi.org/10.1364/josaa.12.001702.
Full textRomero, L. A., and F. M. Dickey. "Lossless laser beam shaping." Journal of the Optical Society of America A 13, no. 4 (April 1, 1996): 751. http://dx.doi.org/10.1364/josaa.13.000751.
Full textJia, Jia, Changhe Zhou, Xiaohui Sun, and Liren Liu. "Superresolution laser beam shaping." Applied Optics 43, no. 10 (April 1, 2004): 2112. http://dx.doi.org/10.1364/ao.43.002112.
Full textDissertations / Theses on the topic "Beam shaping"
Litvin, Igor A. "Intra–cavity laser beam shaping." Thesis, Stellenbosch : University of Stellenbosch, 2010. http://hdl.handle.net/10019.1/4018.
Full textENGLISH ABSTRACT: There are many applications where a Gaussian laser beam is not ideal, for example, in areas such as medicine, data storage, science, manufacturing and so on, and yet in the vast majority of laser systems this is the fundamental output mode. Clearly this is a limitation, and is often overcome by adapting the application in mind to the available beam. A more desirable approach would be to create a laser beam as the output that is tailored for the application in mind – so called intra-cavity laser beam shaping. The main goal of intra-cavity beam shaping is the designing of laser cavities so that one can produce beams directly as the output of the cavity with the required phase and intensity distribution. Shaping the beam inside the cavity is more desirable than reshaping outside the cavity due to the introduction of additional external losses and adjustment problems. More elements are required outside the cavity which leads to additional costs and larger physical systems. In this thesis we present new methods for phase and amplitude intra– cavity beam shaping. To illustrate the methods we give both an analytical and numerical analysis of different resonator systems which are able to produce customised phase and intensity distributions. In the introduction of this thesis, a detailed overview of the key concepts of optical resonators is presented. In Chapter 2 we consider the well–known integral iteration algorithm for intra–cavity field simulation, namely the Fox–Li algorithm and a new method (matrix method), which is based on the Fox–Li algorithm and can decrease the computation time of both the Fox–Li algorithm and any integral iteration algorithms. The method can be used for any class of integral iteration algorithms which has the same calculation integrals, with changing integrants. The given method appreciably decreases the computation time of these algorithms and approaches that of a single iteration. In Chapter 3 a new approach to modeling the spatial intensity profile from Porro prism resonators is proposed based on rotating loss screens to mimic the apex losses of the prisms. A numerical model based on this approach is presented which correctly predicts the output transverse field distribution found experimentally from such resonators. In Chapter 4 we present a combination of both amplitude and phase shaping inside a cavity, namely the deployment of a suitable amplitude filter at the Fourier plane of a conventional resonator configuration with only spherical curvature optical elements, for the generation of Bessel–Gauss beams as the output. In Chapter 5 we present the analytical and numerical analyses of two new resonator systems for generating flat–top–like beams. Both approaches lead to closed form expressions for the required cavity optics, but differ substantially in the design technique, with the first based on reverse propagation of a flattened Gaussian beam, and the second a metamorphosis of a Gaussian into a flat–top beam. We show that both have good convergence properties, and result in the desired stable mode. In Chapter 6 we outline a resonator design that allows for the selection of a Gaussian mode by diffractive optical elements. This is made possible by the metamorphosis of a Gaussian beam into a flat–top beam during propagation from one end of the resonator to the other. By placing the gain medium at the flat–top beam end, it is possible to extract high energy in a low–loss cavity.
AFRIKAANSE OPSOMMING: Daar is verskeie toepassings waar ʼn Gaussiese laser bundel nie ideaal is nie, in gebiede soos mediese veld, stoor van data, vervaardiging en so meer, en tog word die meeste laser sisteme in die fundamentele mode bedryf. Dit is duidelik ’n beperking, en word meestal oorkom deur aanpassing van die toepassing tot die beskikbare bundel. ’n Beter benadering sou wees om ʼn laser bundel te maak wat afgestem is op die toepassing - sogenaamde intra-resonator bundel vorming. Die hoofdoel van intra-resonator bundel vorming is om resonators te ontwerp wat direk as uitset kan lewer wat die gewenste fase en intensiteits-distribusie vertoon. Vorming van die bundel in die resonator is voordeliger omdat die vorming buite die resonator tot addisionele verliese asook verstellings probleme bydra. Meer elemente word benodig buite die resonator wat bydra tot hoër koste en groter sisteme. In hierdie tesis word nuwe fase en amplitude intra-resonator bundelvormings metodes voorgestel. Om hierdie metode te demonstreer word analitiese en numeriese analises vir verskillende resonator sisteme wat aangepaste fase en intensiteit distribusies produseer, bespreek. In die inleiding van die tesis word ʼn detailleer oorsig oor die sleutel konsepte van optiese resonators voorgelê. In hoofstuk 2 word die bekende integraal iterasie algoritme vir intraresonator veld simulasie, naamlik die Fox-Li algoritme, en ʼn nuwe metode (matriks metode), wat gebaseer is op die Fox-Li algoritme, en die berekeningstyd van beide die Fox-Li algoritme en enige ander integraal iterasie algoritme verminder. Die metode kan gebruik word om enige klas van integraal iterasie algoritmes wat dieselfde berekenings integrale het, met veranderde integrante (waar die integrand die veld van die lig golf is in die geval van die Fox-Li algoritme, IFTA, en die skerm metode. Die voorgestelde metode verminder die berekeningstyd aansienlik, en is benaderd die van ʼn enkel iterasie berekening. In hoofstuk 3 word ʼn nuwe benadering om die modellering van die ruimtelike intensiteitsprofiel van Porro prisma resonators, gebaseer op roterende verliese skerms om die apeks-verliese van die prismas te benader, voorgestel. ʼn Numeriese model gebaseer op hierdie benadering wat die uitset van die transversale veld distribusie in eksperimentele resonators korrek voorspel, word voorgestel. In hoofstuk 4 word ʼn tegniek vir die generering van Bessel-Gauss bundels deur die gebruik van ʼn kombinasie van amplitude en fase vorming in die resonator en ʼn geskikte amplitude filter in die Fourier vlak van ʼn konvensionele resonator konfigurasie met optiese elemente wat slegs sferiese krommings het, voorgestel. In hoofstuk 5 word die analitiese en numeriese analises van twee nuwe resonator sisteme vir die generering van sogenaamde “flat–top” bundels voorgestel. Beide benaderings lei na ʼn geslote vorm uitdrukking vir die resonator optika wat benodig word, maar verskil noemenswaardig in die ontwerptegniek. Die eerste is baseer op die terug voortplanting van plat Gaussiese bundel, en die tweede op metamorfose van Gaussiese “flat-top” bundel. Ons toon aan dat beide tegnieke goeie konvergensie het, en in die gevraagde stabiele modus lewer. In hoofstuk 6 skets ons die resonator ontwerp wat die selektering van ʼn Gaussiese modus deur diffraktiewe optiese element moontlik maak. Dit word moontlik deur die metamorfose van ’n Gaussiese bundel na ʼn “flat-top” gedurende die voortplanting van die een kant van die resonator na die ander. Deur die wins medium aan die “flat–top” kant van die bundel te plaas word dit moontlik om hoë energie te onttrek in ʼn lae verlies resonator.
Zeng, Danyong. "ANNULAR BEAM SHAPING AND OPTICAL TREPANNING." Doctoral diss., University of Central Florida, 2006. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/2593.
Full textPh.D.
Department of Mechanical, Materials and Aerospace Engineering;
Engineering and Computer Science
Mechanical Engineering
Mi, Yongcui. "Novel beam shaping and computer vision methods for laser beam welding." Licentiate thesis, Högskolan Väst, Avdelningen för produktionssystem (PS), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:hv:diva-16970.
Full textLasersvetsning används i stor utsträckning i olika industrisektorer på grund av dess unika fördelar. Det finns emellertid fortfarande utmaningar, såsom rätt positionering av laserstrålen vid genomträngningssvetsning av T-fogar och hantering av varierande spaltbredd längs fogen vid svetsning av stumfogar. Sådana problem förväntas kunna lösas med avancerade metoder för automatisering, metoder som också förväntas ge fördjupade kunskaper om processen. Syftet med detta arbete är att ta itu med dessa problem med hjälp av en teknik för lasereffektens fördelning på arbetsstycket, s.k. beam shaping. Det sker med hjälp av en ny typ av i realtid deformerbar spegel tillsammans med bildbehandling av kamerabilder från processen. För- och nackdelar med detta tillvägagångssätt undersöks.Beam shaping åstadkoms med hjälp av ny typ av deformerbart spegelsystem som integreras i en industriell processoptik. Tillsammans med en vågfrontsensor bildas ett adaptivt system för beam shaping med en svarstid på 10 ms. Processen övervakas av en kamera linjerad koaxialt med laserstrålen. För att kunna ta bilder av svetspunkten belyses den med ljus av lämplig våglängd, och kameran är försedd med ett motsvarande optiskt filter. Försök har utförts med svetsning utan tillsatsmaterial, direkt på plåtar, svetsning utan s.k. nyckelhål, för att förstå effekten av beam shaping på svetssmältans geometri. Gauss fördelade cirkulära och elliptiska former, långsträckta både tvärs och längs svetsriktningen har studerats. Bilder från svetssmältan har analyserats och även mikrostrukturen i tvärsnitt från de svetsade plåtarna. Resultaten visar att svetssmältans geometri kan modifieras signifikant genom beam shaping med hjälp av det deformerbara spegelsystemet. Genomträngningssvetsning av T-fogar med avvikelser relativt foglinjens centrum genomfördes för att studera potentialen i att använda maskininlärning för att fånga processens tillstånd. Resultaten visade att maskininlärning kan nå tillräcklig prestanda för detektering och skattning av denna avvikelse. Något som också kan användas för återkopplad styrning. Flerdimensionell processdata har samlats i realtid och analyserats med hjälp av bildbehandlingsmetoder. Dessa data avslöjar brister i nuvarande simuleringsmodeller,vilket i sin tur hjälper till med att bättre förstå och styra lasersvetsning.Resultaten från detta arbete uppvisar en god potential i att använda de föreslagna metoderna för att lösa relevanta utmaningar inom lasersvetsning.
Till licentiatuppsats hör 2 inskickade artiklar, som visas inte nu.
Sinigardi, Stefano <1985>. "Laser driven proton acceleration and beam shaping." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amsdottorato.unibo.it/6230/.
Full textRatsibi, 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.
Full textThis 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.
Rafayelyan, Mushegh. "Singular beam shaping from spin-orbit flat optics." Thesis, Bordeaux, 2017. http://www.theses.fr/2017BORD0583/document.
Full textIt is well-known that paraxial coherent electromagnetic fields can be completelycharacterized in terms of their radial and azimuthal spatial degrees of freedom in the transverse planethat add to the polarization degree of freedom and wavelength. In this work we address two mainissues of paraxial beam shaping that are the modality and the polychromaticity in the context of flatopticsthat we address by introducing novel concepts of spin-orbit optical elements. Namely, the‘modal q-plate’ and the ‘Bragg-Berry q-plate’. On the one hand, modal q-plate converts an incidentfundamental Gaussian beam into a Laguerre-Gaussian beam of given radial and azimuthal indices,hence going beyond the capabilities of conventional q-plates that only control the azimuthal degreeof freedom, i.e. the orbital angular momentum content of light. Towards experimental realization ofmodal q-plates, two approaches are developed: one based on artificially nanostructured glasses andanother based on naturally self-organized liquid crystal topological defects. On the other hand,Bragg-Berry q-plate consist of mirror-backed inhomogeneous thin film of chiral liquid crystal(cholesteric) that provides fully efficient spin-orbit beam shaping over broad spectral range of theincident beam, in contrast to the conventional q-plates that are designed for single wavelength.Furthermore, ultra-broadband spin-orbit beam shaping is achieved by inducing an extra modulationof the supramolecular twisted structure of the cholesteric liquid crystal along the propagationdirection. We also show that the presence of a back-mirror allows a powerful spatio-temporal controlof the polarization vectorial properties of the light fields generated by Bragg-Berry q-plate
Maigyte, Lina. "Shaping of light beams with photonic crystals : spatial filtering, beam collimation and focusing." Doctoral thesis, Universitat Politècnica de Catalunya, 2014. http://hdl.handle.net/10803/277571.
Full textLa recerca desenvolupada en el marc d'aquesta tesi doctoral és un estudi teòric, numèric i experimental de la modificació de la forma de feixos de llum (filtratge espacial, col·limació i focalització) en el rang visible de freqüències utilitzant estructures de cristall fotònic. Els cristalls fotònics (CFs) són materials amb una modulació periòdica de l'índex de refracció en l'escala de la longitud d'ona, i són principalment coneguts per les seves propietats relacionades amb la dispersió temporal. Tot i això, la dispersió espacial també pot ser modificada mitjançant CFs, fet que permet controlar les propietats espacials de feixos monocromàtics de llum. En la primera part de la tesi, mostrem experimentalment el fet que certes modificacions de la dispersió espacial en CFs poden donar lloc a filtratge espacial (angular) de feixos de llum. L'estudi es focalitza en la millora de l'eficiència del filtratge espacial mitjançant la introducció de "chirp" (la variació del període longitudinal de l'estructura) en el CF. A més, per tal d'incrementar l'efecte considerem diferents estructures i materials. El treball presentat en aquesta tesi doctoral acosta a la realitat la creació d'una nova generació de filtres espacials per a circuits micro-fotònics i micro-dispositius. La segona part d'aquest estudi se centra en l'anàlisi teòric, numèric i experimental de la formació de dispersió espacial negativa en CFs, la gual dóna lloc a efectes de col·limació i focalització un cop travessat el CF. Les idees desenvolupades en aquesta tesi doctoral també són aplicables a sistemes amb pèrdues, en particular a CFs metàl·lics. Els resultats de les simulacions mostren l'existència d'ambdós efectes, filtratge espacial i focalització, en CFs metàl·lics.
Yang, Zhengyi. "Optical and acoustic beam shaping for imaging and manipulation." Thesis, University of Dundee, 2014. https://discovery.dundee.ac.uk/en/studentTheses/18d650a0-53ba-4f4d-9d61-78c3a6b68bf6.
Full textLiu, Lihong. "Beam shaping of incoherent white light with faceted structure." Thesis, Strasbourg, 2018. http://www.theses.fr/2018STRAD010.
Full textBeam shaping of incoherent white light with a large spectrum is proposed in this PhD thesis. The objective was to realize an arbitrary irradiance map on a target plane using a faceted structure. To maintain the design result within the geometrical optics domain, large facet element dimensions are required to obtain usable results. Each facet element can slightly tilt along its own axes to deflect the incident light, either by reflection, either by transmission. The calculation of the tilt angles is made by an analytical approach, and also by automatic optimization with Zemax. Several quality factors are proposed in order to qualify the illumination/irradiance chart on the screen. Because of the required tolerances on the fabrication technique, we show that it is more interesting to design a transmissive structure than a reflective one. With a new additive technology, a structure is realized successfully, showing the interest of the concept
Victor, Brian M. "Custom Beam Shaping for High-Power Fiber Laser Welding." The Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1238014676.
Full textBooks on the topic "Beam shaping"
1941-, Dickey Fred M., Holswade Scott C. 1963-, and Shealy David L, eds. Laser beam shaping applications. Boca Raton, FL: Taylor & Francis/CRC Press, 2006.
Find full text1941-, Dickey Fred M., and Holswade Scott C. 1963-, eds. Laser beam shaping: Theory and techniques. New York: Marcel Dekker, 2000.
Find full textDickey, Fred M., and Todd E. Lizotte, eds. Laser Beam Shaping Applications. Second edition. | Boca Raton, FL : CRC Press, Taylor & Francis Group, [2017]: CRC Press, 2017. http://dx.doi.org/10.1201/9781315371306.
Full textDiego, Calif ). Laser Beam Shaping (Conference) (14th 2013 San. Laser Beam Shaping XIV: 26 August 2013, San Diego, California, United States. Bellingham, Washington: SPIE, 2013.
Find full textAndrew, Forbes. Laser beam shaping X: 3-4 August 2009, San Diego, California, United States. Edited by SPIE (Society). Bellingham, Wash: SPIE, 2009.
Find full textAndrew, Forbes. Laser beam shaping X: 3-4 August 2009, San Diego, California, United States. Edited by SPIE (Society). Bellingham, Wash: SPIE, 2009.
Find full textKajzar, F., and R. Reinisch, eds. Beam Shaping and Control with Nonlinear Optics. Boston: Kluwer Academic Publishers, 2002. http://dx.doi.org/10.1007/b117080.
Full textF, Kajzar, Reinisch Raymond, North Atlantic Treaty Organization. Scientific Affairs Division., and NATO Advanced Study Institute on Beam Shaping and Control with Nonlinear Optics (1997 : Cargèse, France), eds. Beam shaping and control with nonlinear optics. New York: Plenum Press, 1998.
Find full textForbes, Andrew. Laser beam shaping X: 3-4 August 2009, San Diego, California, United States. Bellingham, Wash: SPIE, 2009.
Find full textWischeropp, Tim Marten. Advancement of Selective Laser Melting by Laser Beam Shaping. Berlin, Heidelberg: Springer Berlin Heidelberg, 2021. http://dx.doi.org/10.1007/978-3-662-64585-7.
Full textBook chapters on the topic "Beam shaping"
Dickey, Fred M., and Scott C. Holswade. "Beam Shaping A Review." In Laser Beam Shaping Applications, 383–418. Second edition. | Boca Raton, FL : CRC Press, Taylor & Francis Group, [2017]: CRC Press, 2017. http://dx.doi.org/10.1201/9781315371306-12.
Full textLizotte, Todd E., and Orest Ohar. "Laser Beam Shaping through Fiber Optic Beam Delivery." In Laser Beam Shaping Applications, 293–327. Second edition. | Boca Raton, FL : CRC Press, Taylor & Francis Group, [2017]: CRC Press, 2017. http://dx.doi.org/10.1201/9781315371306-9.
Full textDickey, Fred, and Scott Holswade. "Beam ShapingA Review." In Laser Beam Shaping Applications, 383–429. Taylor & Francis Group, 6000 Broken Sound Parkway NW, Suite 300, Boca Raton, FL 33487-2742: CRC Press, 2017. http://dx.doi.org/10.1201/9781315371306-13.
Full textDonges, Axel, and Reinhard Noll. "Beam Shaping and Guiding." In Springer Series in Optical Sciences, 63–97. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-662-43634-9_4.
Full textLizotte, Todd E. "Introduction." In Laser Beam Shaping Applications, 1–5. Second edition. | Boca Raton, FL : CRC Press, Taylor & Francis Group, [2017]: CRC Press, 2017. http://dx.doi.org/10.1201/9781315371306-1.
Full textCherezova, T. Yu, and A. V. Kudryashov. "Laser Beam Shaping by Means of Flexible Mirrors." In Laser Beam Shaping Applications, 329–56. Second edition. | Boca Raton, FL : CRC Press, Taylor & Francis Group, [2017]: CRC Press, 2017. http://dx.doi.org/10.1201/9781315371306-10.
Full textMoskalev, I. S., V. V. Fedorov, S. B. Mirov, T. T. Basiev, and P. G. Zverev. "Application of Laser Beam Shaping for Spectral Control of “Spatially Dispersive” Lasers." In Laser Beam Shaping Applications, 357–81. Second edition. | Boca Raton, FL : CRC Press, Taylor & Francis Group, [2017]: CRC Press, 2017. http://dx.doi.org/10.1201/9781315371306-11.
Full textMichaloski, Paul. "Illuminators for Microlithography." In Laser Beam Shaping Applications, 7–56. Second edition. | Boca Raton, FL : CRC Press, Taylor & Francis Group, [2017]: CRC Press, 2017. http://dx.doi.org/10.1201/9781315371306-2.
Full textKurtz, Andrew F., Daniel D. Haas, and Nissim Pilossof. "Laser Beam Shaping in Array-Type Laser Printing Systems." In Laser Beam Shaping Applications, 57–115. Second edition. | Boca Raton, FL : CRC Press, Taylor & Francis Group, [2017]: CRC Press, 2017. http://dx.doi.org/10.1201/9781315371306-3.
Full textSercel, Jeffrey P., and Michael von Dadelszen. "Practical UV Excimer Laser Image System Illuminators." In Laser Beam Shaping Applications, 117–57. Second edition. | Boca Raton, FL : CRC Press, Taylor & Francis Group, [2017]: CRC Press, 2017. http://dx.doi.org/10.1201/9781315371306-4.
Full textConference papers on the topic "Beam shaping"
Braunschweig, Robert, Paul Etienne Martin, José Antonio Ramos de Campos, Axel Kupisiewicz, Sébastien Estival, and Mathieu Dijoux. "High-power femtosecond laser cutting and drilling combining beam-shaping and beam-splitting." In Laser Beam Shaping XVIII, edited by Angela Dudley and Alexander V. Laskin. SPIE, 2018. http://dx.doi.org/10.1117/12.2322106.
Full textO'Dea, Brendan, Roger L. Farrow, Brian Victor, Juan Lugo, Ryan Hawke, Ken Gross, Aaron Hodges, et al. "Variable beam high power fiber laser with optimized beam characteristics for metal cutting." In Laser Beam Shaping XIX, edited by Angela Dudley and Alexander V. Laskin. SPIE, 2019. http://dx.doi.org/10.1117/12.2528809.
Full textXu, Lixin, Zhipeng Dong, Shujie Li, Chun Gu, and Peijun Yao. "High power wide band square-wave pulse generation at 1 μm in a passively mode-locked fiber laser." In Laser Beam Shaping XVIII, edited by Angela Dudley and Alexander V. Laskin. SPIE, 2018. http://dx.doi.org/10.1117/12.2320186.
Full textBarthels, Thilo, and Martin Reininghaus. "High precision ultrashort pulsed laser drilling of thin metal foils by means of multibeam processing." In Laser Beam Shaping XVIII, edited by Angela Dudley and Alexander V. Laskin. SPIE, 2018. http://dx.doi.org/10.1117/12.2320268.
Full textRosales-Guzmán, Carmelo, Nkosiphile Andile Bhebhe, and Andrew Forbes. "Generation of multiple vector beams using a single hologram." In Laser Beam Shaping XVIII, edited by Angela Dudley and Alexander V. Laskin. SPIE, 2018. http://dx.doi.org/10.1117/12.2320451.
Full textForbes, Andrew, and Adam Valles Mari. "Quantum mechanics with patterns of light (Conference Presentation)." In Laser Beam Shaping XVIII, edited by Angela Dudley and Alexander V. Laskin. SPIE, 2018. http://dx.doi.org/10.1117/12.2320460.
Full textFaulhaber, Andreas, Tobias Haist, Wolfgang Osten, Stefan Haberl, Marc Gronle, Yousef Baroud, and Sven Simon. "Dynamic holography for speckle noise reduction in hybrid measurement system." In Laser Beam Shaping XVIII, edited by Angela Dudley and Alexander V. Laskin. SPIE, 2018. http://dx.doi.org/10.1117/12.2320486.
Full textBourgin, Yannick, Falk Nagel, Patrick Fesser, Jean-Pierre Bergmann, and Stefan Sinzinger. "High power laser beam shaping for welding applications by means of diffractive elements." In Laser Beam Shaping XVIII, edited by Angela Dudley and Alexander V. Laskin. SPIE, 2018. http://dx.doi.org/10.1117/12.2320579.
Full textKöhler, Philipp, Andrei Ruskuc, Marius A. Weber, Michael H. Frosz, Ana Andres-Arroyo, Philip S. Russell, and Tijmen G. Euser. "Excitation of higher-order modes in optofluidic hollow-core photonic crystal fiber." In Laser Beam Shaping XVIII, edited by Angela Dudley and Alexander V. Laskin. SPIE, 2018. http://dx.doi.org/10.1117/12.2320594.
Full textBhebhe, Nkosiphile Andile, Carmelo Rosales-Guzmán, and Andrew Forbes. "Generation of propagation invariant vector flat-top beams." In Laser Beam Shaping XVIII, edited by Angela Dudley and Alexander V. Laskin. SPIE, 2018. http://dx.doi.org/10.1117/12.2320887.
Full textReports on the topic "Beam shaping"
Bowers, M. NIF Beam Shaping Masks. Office of Scientific and Technical Information (OSTI), October 2001. http://dx.doi.org/10.2172/802916.
Full textNeveu, Nicole, Petr Anisimov, and Dinh Nguyen. Optimization and Beam Shaping. Office of Scientific and Technical Information (OSTI), February 2021. http://dx.doi.org/10.2172/1765843.
Full textHalavanau, Aliaksei. ELECTRON BEAM SHAPING AND ITS APPLICATIONS. Office of Scientific and Technical Information (OSTI), January 2018. http://dx.doi.org/10.2172/1439279.
Full textDoerry, Armin W. Simple Array Beam-Shaping Using Phase-Only Adjustments. Office of Scientific and Technical Information (OSTI), July 2015. http://dx.doi.org/10.2172/1194893.
Full textMalyzhenkov, Alexander, and Nikolai Yampolsky. Optimization of Compton Source Performance through Electron Beam Shaping. Office of Scientific and Technical Information (OSTI), September 2016. http://dx.doi.org/10.2172/1329533.
Full textPlotkowski, Alex. Fabrication and Modeling of Laser Additive Manufactured Materials with Multi-Beam Adaptive Beam Shaping. Office of Scientific and Technical Information (OSTI), December 2018. http://dx.doi.org/10.2172/1550767.
Full textMiller, J. D., R. F. Schneider, H. S. Uhm, K. T. Nguyen, and K. W. Struve. Pulse Shaping a High-Current Relativistic Electron Beam in Vacuum. Fort Belvoir, VA: Defense Technical Information Center, June 1990. http://dx.doi.org/10.21236/ada230674.
Full textJ. Vujic, E. Greenspan, W.E. Kastenber, Y. Karni, D. Regev, K. N. Leung J.M. Verbeke, D. Chivers, et al. Optimal Neutron Source & Beam Shaping Assembly for Boron Neutron Capture Therapy. Office of Scientific and Technical Information (OSTI), April 2003. http://dx.doi.org/10.2172/810841.
Full textEllison, Chad M., Matthew J. Perricone, Kevin M. Faraone, and Jerome T. Norris. Pulse shaping effects on weld porosity in laser beam spot welds : contrast of long- & short- pulse welds. Office of Scientific and Technical Information (OSTI), October 2007. http://dx.doi.org/10.2172/921738.
Full textKlett, Jr, and Karl K. An Analysis of the Far-Field Radiation Pattern of the Ultraviolet Light-Emitting Diode (LED) Engin LZ4-00UA00 Diode with and without Beam Shaping Optics. Fort Belvoir, VA: Defense Technical Information Center, September 2015. http://dx.doi.org/10.21236/ada622302.
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