Relevant bibliographies by topics / Laser excitation

Academic literature on the topic 'Laser excitation'

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Published: 4 June 2021
Last updated: 10 March 2023

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Journal articles on the topic "Laser excitation"

1

Mavroyannis, Constantine. "A laser-excited three-level atom." Canadian Journal of Physics 68, no. 3 (March 1, 1990): 321–33. http://dx.doi.org/10.1139/p90-051.

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We considered the excitation spectra for the excited states of a three-level atom, where the strong and the weak atomic transitions are driven by resonant and nonresonant laser fields, respectively. The spectral functions describing the excitation spectra for the electric dipole allowed excited state and for the metastable state of the atom have been derived when both laser fields are quantized as well as when they are treated as classical entities. In the low-intensity limit of the laser field operating in the strong transition, there are two short-lifetime excitations, the spontaneous one and the induced one, which appear at the same frequency, and a long-lifetime excitation induced by the weak laser field. These excitations compete with each other at resonance as well as at finite detunings of the weak laser field. In the high-intensity limit of the laser field operating in the strong transition, the competition is between the short- and the long-lifetime side bands, which are induced by the strong and the weak laser fields, respectively. The ratio of the maximum intensities of the peaks describing the long- and the short-lifetime excitations exhibits a resonance variation with the detuning of the weak laser field. Comparison between the results obtained when the laser fields are treated as quantized and as classical entities is made.
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WANG, Z. P., C. M. GU, and W. Z. SHEN. "PHOTOINDUCED LASER EFFECTS IN INDIUM NITRIDE FILM." Modern Physics Letters B 25, no. 03 (January 30, 2011): 185–92. http://dx.doi.org/10.1142/s021798491102550x.

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The optical nonlinear absorption properties in sputtering Indium nitride ( InN ) film were investigated under the excitations of nanosecond, picosecond and femtosecond pulsed lasers by open-aperture transmission Z-scan technique (TZ-scan). Under the condition of hν > Eg, the saturable absorption (SA) phenomena induced by one-photon transition were observed in both nanosecond and picosencond pulsed TZ-scan measurements. When 2hν > Eg > hν, the film presented SA due to the two-photon transition under the excitation of picosecond laser. However, at femtosecond 800 nm, the film showed the two-photon absorption (TPA) instead of SA, and the TPA coefficient tended to a saturable value as the excitation intensity increased. The results indicate that the InN film is a kind of good saturable absorber.
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Peng, Tingting, Rui Pu, Baoju Wang, Zhimin Zhu, Kai Liu, Fan Wang, Wei Wei, Haichun Liu, and Qiuqiang Zhan. "The Spectroscopic Properties and Microscopic Imaging of Thulium-Doped Upconversion Nanoparticles Excited at Different NIR-II Light." Biosensors 11, no. 5 (May 10, 2021): 148. http://dx.doi.org/10.3390/bios11050148.

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Lanthanide-doped upconversion nanoparticles (UCNPs) are promising bioimaging nanoprobes due to their excellent photostability. As one of the most commonly used lanthanide activators, Tm3+ ions have perfect ladder-type electron configuration and can be directly excited by bio-friendly near-infrared-II (NIR-II) wavelengths. Here, the emission characteristics of Tm3+-doped nanoparticles under laser excitations of different near-infrared-II wavelengths were systematically investigated. The 1064 nm, 1150 nm, and 1208 nm lasers are proposed to be three excitation strategies with different response spectra of Tm3+ ions. In particular, we found that 1150 nm laser excitation enables intense three-photon 475 nm emission, which is nearly 100 times stronger than that excited by 1064 nm excitation. We further optimized the luminescence brightness after investigating the luminescence quenching mechanism of bare NaYF4: Tm (1.75%) core. After growing an inert shell, a ten-fold increase of emission intensity was achieved. Combining the advantages of NIR-II wavelength and the higher-order nonlinear excitation, a promising facile excitation strategy was developed for the application of thulium-doped upconversion nanoparticles in nanoparticles imaging and cancer cell microscopic imaging.
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Khanum, Rizwana, Ching-Hang Chien, Yia-Chung Chang, and Rakesh S. Moirangthem. "Investigation of size-dependent spontaneous and stimulated visible WGM emissions via both ultraviolet and visible excitations for sensing applications." Journal of Applied Physics 132, no. 23 (December 21, 2022): 235304. http://dx.doi.org/10.1063/5.0123678.

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In this work, we investigated both spontaneous and stimulated whispering gallery mode (WGM) emissions of 2 mol. % Li+-doped ZnO (Li-ZnO) microspheres with different sizes under 325 and 488 nm wavelength laser excitations, respectively. It was found that all the microspheres exhibit stimulated emissions under a visible laser excitation source of 488 nm wavelength after the threshold pumping power. Thereafter, we studied the dependence of threshold pumping power on the size of microresonators to achieve stimulated emissions by individual microspheres. Furthermore, two microspheres (MS2 and MS3) are excited via a 325 nm UV laser, and surprisingly, the WGM peaks of higher intensity are observed in the visible rather than in the UV spectral region. We expected that most of the emissions are achieved via defect states transitions instead of inter-band transitions in the microresonators. It was found that WGMs in each microsphere exhibit a linear spectral shift of 3–5 nm with increasing pumping power of 488 nm excitation laser source. We believe that these proposed microspheres can be utilized effectively as WGM-based visible lasers and sensors.
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Dixit, A., J. S. Thakur, V. M. Naik, and R. Naik. "Influence of Excitation Frequency on Raman Modes of Thin Films." Advances in Condensed Matter Physics 2013 (2013): 1–4. http://dx.doi.org/10.1155/2013/191282.

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Low energy optical modes of MBE-grown thin films with different values of are investigated using Raman spectroscopy. We also studied the influence of Raman excitation frequency using red and green lasers on scattering intensity of various Raman modes. For those alloys whose bandgap energy is close to the red laser, a huge enhancement in the intensities of A1(LO) mode and its 2A1(LO) replica is observed when excited with red laser as compared to the green laser excitation. We found that the energies of longitudinal optical modes (A1(LO) and 2A1(LO)) vary nonlinearly unlike the E2mode with increasing Ga atomic fraction. A Raman mode~540 cm−1was observed in all films with low energy red laser excitation but was absent with green laser excitation. We attribute this mode to A1(TO) mode of the underneath GaN buffer layer.
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Prasad, Vinod, Rinku Sharma, and Man Mohan. "Laser Assisted Electron - Alkali Atom Collisions." Australian Journal of Physics 49, no. 6 (1996): 1109. http://dx.doi.org/10.1071/ph961109.

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Lasar assisted inelastic scattering of electrons by alkali atoms is studied theoretically. The non-perturbative quasi-energy method, which is generalised for many atomic states, is used to describe the laser–atom interaction, and the electron–atom interaction is treated within the first Born approximation. We have calculated the total cross section for the excitation of sodium atoms due to simultaneous electron–photon collisions. We show the effect of laser and collision parameters, e.g. laser intensity, polarisation and incident electron energy, on the excitation process.
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Litfin, G., G. Heise, and H. Welling. "UV-laser excitation of color center lasers." Optics Communications 59, no. 2 (August 1986): 137–41. http://dx.doi.org/10.1016/0030-4018(86)90465-7.

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Stevenson, Christopher L., and Tuan Vo-Dinh. "Laser-Excited Synchronous Luminescence Spectroscopy." Applied Spectroscopy 47, no. 4 (April 1993): 430–35. http://dx.doi.org/10.1366/0003702934334967.

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The use of lasers as excitation sources for molecular luminescence often results in improvements in sensitivity and limits of detection (LODs). Synchronous luminescence (SL) spectroscopy, in which both excitation and emission wavelengths are scanned simultaneously, provides a convenient means to improve selectivity (often dramatically) in the analysis of multicomponent mixtures using room-temperature luminescence. We report here on the first use of a dye laser as an excitation source for SL at room temperature. The performance of the laser synchronous luminescence (LSL) system is described for the analysis of four polyaromatic compounds; for one of these—tetracene—the LOD was 680 zeptomoles (10−21 mol) in the volume probed by the laser. In addition to impressive sensitivity and selectivity, the laser system used is quite small and can be considered as an attractive source for portable SL instruments designed for in-field screening of environmental samples.
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Goller, B., and M. Kubbies. "UV lasers for flow cytometric analysis: HeCd versus argon laser excitation." Journal of Histochemistry & Cytochemistry 40, no. 4 (April 1992): 451–56. http://dx.doi.org/10.1177/40.4.1372632.

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Applying flow cytometric single cell analysis, we compared the performance of UV excitation from argon ion and HeCd lasers using various UV-excitable fluorochromes of cell kinetic and cell physiological relevance. The AT-specific DNA fluorochromes DAPI, Hoechst 33258, and Hoechst 33342 showed no significant differences of G1-phase resolution and cell cycle distribution. With the HeCd laser, high-resolution cell kinetic analysis applying the novel BrdU/Hoechst-PI quenching technique showed superior resolution and an almost normalized G2M/G1 channel ratio of the first cell cycle. Indo-1 analysis for detection of intracellular free calcium gave similar results for both excitation sources, although the indo-1 ratio of activated cells was lower for HeCd excitation. Monochlorobimane as an indicator fluorochrome of glutathione content could not be excited sufficiently with the 325-nm line of the HeCd laser and exhibited poor resolution between positive and negative cells. However, the second glutathione-specific fluorochrome o-phtalaldehyde gave even better results with the HeCd laser. Our data indicate that air-cooled HeCd lasers are cheap and reliable UV-excitation sources for most UV-excitable fluorochromes, and might be an alternative to the expensive water-cooled argon and krypton laser.
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Masters, AT, RT Sang, WR MacGillivray, and MC Standage. "New Data from Laser Interrogation of Electron-Atom Collisions Experiments." Australian Journal of Physics 49, no. 2 (1996): 499. http://dx.doi.org/10.1071/ph960499.

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Recent data from two methods in which high resolution laser radiation is used to assist in determining electron-atom collision parameters are presented. The electron superelastic method has yielded the first measurement of Stokes parameters for electron de-excitation of the 32D5/2–32P3/2,1/2 transition of atomic Na, the upper level having been optically prepared by resonant, stepwise excitation from the 32S1/2 ground level via the 32P3/2 level using two single mode lasers. As well, we report on the development of a model to determine the optical pumping parameters for superelastic scattering from the 32P3/2 level when it is prepared by two lasers exciting from the F = 1 and F = 2 states respectively of the 32S1/ 2 ground level. Data are also presented for collision parameters for the excitation of the 61So–61 PI transition of the I = 0 isotope of Hg by electrons of 50 eV incident energy. The technique employed for these measurements is the stepwise electron–laser excitation coincidence method, in which the electron excited atom is further excited by resonant laser radiation, and fluorescence photons emitted by relaxation from the laser excited state are detected in coincidence with the scattered electron.
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Dissertations / Theses on the topic "Laser excitation"

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Mazzotta, Z. "POSITRONIUM LASER EXCITATION IN THE AEGIS EXPERIMENT." Doctoral thesis, Università degli Studi di Milano, 2017. http://hdl.handle.net/2434/468556.

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The AEgIS experimental program on antimatter systems involves the formation of antihydrogen atoms for gravitational and CPT studies. One of the key ingredients of the AEgIS strategy for the synthesis of antihydrogen atoms is the creation and manipulation of Positronium (Ps) atoms laser excited to Rydberg states (n > 15). In AEgIS, Ps is produced in bunched mode and the Rydberg excitation is achieved with a two laser pulse technique, by passing through a n = 3 intermediate level. Because excitation on Ps n = 3 state has never been proposed before, in AEgIS a dedicated experimental apparatus and several detection strategies have been studied in order to observe the first measurement ever on this interesting process. In this work we present and discuss the experimental findings about the successful Ps n = 3 excitation. Moreover, in this thesis, a study of the impact of involved nonlinear processes on the excitation efficiency of a Doppler broadened atomic cloud is carried out. Presented simulation results show that, by exploiting properly nonlinear processes in the generation of the desired wavelength, it is possible to improve the excitation efficiency of a laser pulse. It is crucial, in AEgIS, the use of a periodically poled crystal in quasi phase matching regime. This gives a broadband continuous output spectrum whose wings survive to the spectral cutting of the last nonlinear crystal of the chain (which has insufficient spectral acceptance). This means that, at high laser energies, these wings can be amplified and the spectrum gaps can be filled in, leading to high reachable saturation efficiencies. On the contrary, in a laser pulse with a comb-shaped spectrum with a Gaussian envelope, both wings and gaps drop rapidly to zero, and amplification hardly occurs at usually employed energy regimes. The presented model is finally used to fit AEgIS Ps n = 3 excitation experimental data.
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Xu, Bingwei. "Control of multiphoton molecular excitation with shaped femtosecond laser pulses." Diss., Connect to online resource - MSU authorized users, 2008.

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Leclerc-Perron, Jérôme. "Laser à miroirs de Bragg à excitation impulsionnelle." Master's thesis, Université Laval, 2015. http://hdl.handle.net/20.500.11794/26485.

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L’émergence des verres dopés à l’erbium a permis le développement d’une multitude d’applications. Toutefois, plusieurs de ces applications comme le LIDAR, la spectroscopie infrarouge et la génération de radiation infrarouge pour les oscillateurs paramétriques optiques pourraient bénéficier d’un milieu possédant une large plage de gain au-delà de celle offerte par l’erbium. C’est ce que permet le thulium avec sa plage de gain s’étalant de 1.7 μm à 2.1 μm. Entraînés par les succès de l’erbium pour la production d’impulsions, plusieurs chercheurs transposent les concepts développés pour l’erbium vers le thulium. Parmi les différentes méthodes de conception d’une cavité laser, les cavités linéaires à rétroaction distribuée ou à miroirs de Bragg permettent la mise en place d’un laser monolithique de très petite taille. Selon le schéma de pompage, il est possible d’opérer un tel laser en régime continu tout comme en régime impulsionnel. Ce document présente la mise en application d’un laser à fibre dopée thulium muni d’une cavité linéaire avec miroirs de Bragg. Dans un premier temps, nous présentons le modèle utilisé pour effectuer la simulation du comportement dynamique du laser. Ce modèle permet d’implémenter un algorithme de simulation numérique capable de prendre en considération l’excitation impulsionnelle, les effets dispersifs induits par le réseau de Bragg et les effets non linéaires intrinsèques à la fibre optique. Ensuite, on présentera la caractérisation des différentes composantes nécessaires à la réalisation du laser au thulium, notamment l’amplificateur à l’erbium pour la production d’impulsions pompe de haute énergie pour l’excitation impulsionnelle du laser à fibre dopée thulium. Enfin, on présentera les performances du laser muni de miroirs de Bragg qu’on comparera aux résultats de simulations numériques.
The emergence of erbium doped glasses has allowed the development of many technologies. However, applications such as LIDAR, infrared spectroscopy and infrared sources for optical parametric oscillators all benefit from having a wide gain bandwidth farther in the infrared than what erbium doped glasses allow. Thulium has shown to be a good candidate for such applications due to its wide gain bandwidth ranging from 1.7 μm to 2.1 μm. Inspired by the success in laser pulse generation from erbium doped media, many researchers decided to apply the knowledge acquired from erbium doped laser sources to thulium doped laser sources. We chose to use a linear distributed Bragg reflector cavity, which allows us to implement a monolithic laser of a very small size. Depending on the pumping scheme, it is possible to operate this laser in a CW regime as well as in a pulsed regime. This document details the implementation of a thulium doped fiber laser in a linear cavity with distributed Bragg reflectors. We first develop the theoretical model used for the simulation of our laser’s dynamics. This model allows us to implement numerical simulations able to treat pulsed pumping, dispersive effects induced by the fiber Bragg grating and intrinsic nonlinear effects. We then characterize the erbium-ytterbium doped phosphate fiber amplifier used to generate pump pulses, along with the other components of the thulium doped fiber laser cavity. The numerical model is then validated by comparing numerical simulations to experimental results obtained from our thulium doped laser.
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Comet, Maxime. "Excitation du 201 Hg dans les plasmas produits par laser." Thesis, Bordeaux, 2014. http://www.theses.fr/2014BORD0458/document.

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L'utilisation des lasers de puissance permet l'étude des propriétés de la matière dans des conditions extrêmes de température et de densité. En effet, l'interaction d'un laser de puissance sur une cible créée un plasma dont la température est suffisamment grande pour atteindre des degrés d'ionisation élevés. Ces conditions peuvent permettre, via divers processus, d'exciter le noyau dans un état nucléaire et notamment dans un état isomère. Un noyau d'intérêt pour étudier ces phénomènes est le 201 Hg. Ce travail de thèse s'inscrit dans le cadre du dimensionnement d'une expérience visant la mise en évidence de l'excitation du 201 Hg dans un plasma laser.La première partie de ce manuscrit présente la détermination des taux d'excitation nucléaire dans les plasmas. Depuis une dizaine d'années les taux d'excitation sont déterminés en utilisant le modèle de l'atome moyen. Afin de valider ce modèle, un code, appelé ADAM (Au-Delà de l'Atome Moyen), a été développé afin de calculer le taux d'excitation nucléaire en DCA (Detailed Conguration Accounting). Il nous permettra d'en déduire un domaine thermodynamique en température et densité où les taux d'excitation déterminés avec le modèle de l'atome moyen sont pertinents.La deuxième partie présente le couplage des taux d'excitation nucléaire avec un code hydrodynamique afin d'en déduire, pour différentes intensités laser, le nombre de noyaux qu'il serait possible d'exciter par tir laser. Enfin, dans une dernière partie,les premières approches expérimentales qui serviront au dimensionnement d'une expérience sur une installation laser sont présentées. Ces approches sont basées sur la détection et la détermination de la quantité d'ions multichargés obtenue loin de la cible (~80 cm). Pour cela, un déviateur électrostatique a été utilisé
The use of high power lasers allows the study of the properties of matter in extremeconditions of temperature and density. Indeed, the interaction of a power laser and atarget creates a plasma in which the temperature is high enough to reach important degrees of ionization. These conditions can allow the excitation of the nucleus. Anucleus of interest to study the processes of nuclear excitation is the 201 Hg. Thiswork aims to design an experiment where the 201 Hg excitation will be observed in aplasma produced by a high power laser. The first part of this manuscript presents the calculation of the expected nuclear excitation rates in the plasma. For about ten years, nuclear excitation rates have been calculated using the average atom model. To validate this model a code named ADAM (french acronym for Beyond The Average Atom Model) was developed to calculate the nuclear excitation rates under the DCA (Detailed Configuration Accounting) hypothesis. ADAM allows us to deduce the thermo dynamical domain where the nuclear excitation rates determined with the average atom model are relevant. The second part of this manuscript presents the coupling of the excitation rate calculation with a hydrodynamic code to calculate the number of excited nuclei produced in one laser shot for different laser intensity. Finally, in the last part, first experimental approaches which will be used to design an experiment on a laser installation are presented. These approaches are based on the detection and determination of the amount of multicharged ions obtained far from the target (~80 cm). For this purpose, an electrostatic analyzer was used
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Papastathopoulos, Evangelos. "Adaptive control of electronic excitation utilizing ultrafast laser pulses." Doctoral thesis, [S.l. : s.n.], 2005. http://deposit.ddb.de/cgi-bin/dokserv?idn=975015184.

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Tojira, Opas. "Single-molecule fluorescence spectroscopy : Implementation of alternating-laser excitation." Thesis, University of Leeds, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.531514.

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Han, T. P. J. "Solid state spectroscopy: laser selective excitation studies of neodymium." Thesis, University of Canterbury. Physics, 1988. http://hdl.handle.net/10092/7972.

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When trivalent rare earth (RE³⁺) ions are introduced into the alkaline earth fluoride, they substitute for the divalent cation and some form of charge compensation is required for the crystal to maintain charge neutrality. A wide variety of symmetry configurations can be produced depending on the charge compensator(s) and the rare earth ion(s) in the lattice. The selective laser excitation technique was used to determine the symmetry of the various dopant centres in CaF₂ and Sr F₂ doped with Nd³⁺ ions; both before and after hydrogenation treatment. Previously unassigned energy levels of F¯ charge compensating centres of tetragonal and orthorhombic symmetry in CaF₂ : Nd³⁺ and SrF₂ : Nd³⁺ have been identified by the energy upconversion processes. The upconversion mechanisms for the tetragonal centre are attributed to be dominated by the sequential two photon excitation process (STEP), whereas the two orthorhombic centres are attributed to be dominated by the phonon-assisted energy transfer upconversion process (ETU). The hydrogenic analogues of the well established tetragonal centre in CaF₂ : Nd³⁺ and SrF₂ : N d³⁺, and other hydrogenic charge compensating centres were studied. The fluorescence of some of the multiple charge compensating hydrogenic centres were found to exhibit 'bleaching' behaviours. These effects are attributed to the migration of the hydrogenic ions adjacent to the rare earth ion. For the tetragonal centres, the C₄v irreducible representation designations of the crystal field levels were identified by their intensity variations in the polarisation studies. Energy transfer between the rare earth ions within a cluster centre was established by studying the M' centres in the CaF₂ : Nd³⁺ co-doped with Ce³⁺, Gd³⁺ or Yb³⁺ rare earth ions. These multiple rare earth ion centres also exhibit energy upconversion processes similar to those observed for the orthorhombic centres in CaF₂ : Nd³⁺. Crystal field analyses have been carried out for the tetragonal centres observed in CaF₂ : Nd³⁺ and SrF₂ : Nd³⁺ and a simplified superposition model was used to analyse the distortions in these centres. The crystal field results are in satisfactory agreement with the experimental data and predicted the experimentally unobserved Z₄ energy level for the various C₄v centres.
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Deller, Adam. "Positron accumulation and laser excitation of the positronium atom." Thesis, Swansea University, 2013. https://cronfa.swan.ac.uk/Record/cronfa42868.

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Lenain, Bruno. "Microspectrofluorimétrie à excitation laser et détection multicanale : instrumentation - possibilités - applications." Lille 1, 1989. http://www.theses.fr/1989LIL10047.

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Sille, E. C. "A study of the zinc segmented plasma excitation and recombination laser." Thesis, University of Essex, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.371870.

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Books on the topic "Laser excitation"

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1940-, Cantrell C. D., ed. Multiple-photon excitation and dissociation of polyatomic molecules. Berlin: Springer-Verlag, 1986.

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Cantrell, Cyrus D. Multiple-Photon Excitation and Dissociation of Polyatomic Molecules. Berlin, Heidelberg: Springer Berlin Heidelberg, 1986.

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Shore, Bruce W. The theory of coherent atomic excitation. New York: Wiley, 1990.

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Hopps, Nicholas William. Solid state laser development and the use of phase conjugate resonators or laser diode excitation. Manchester: University of Manchester, 1996.

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Swift, Kerry. Microwave excitation of oxygen O2(super 1 delta) for an oxygen-iodine laser. Koln: DFVLR, 1989.

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Biswas, D. J. Light induced drift: A possible mechanism of separation of isotopes by laser excitation. Mumbai: Bhabha Atomic Research Centre, 2003.

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Manipulating quantum structures using laser pulses. Cambridge, UK: Cambridge University Press, 2011.

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Gomes, Pedro Luckow-Nielsen. A study of laser ionization techniques for the generation of optimal plasma conditions for multiphoton excitation. [Downsview, Ont.]: Dept. of Aerospace Science and Engineering, 1986.

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E, Bron Walter, North Atlantic Treaty Organization. Scientific Affairs Division., and NATO Advanced Study Institute on Ultrashort Processes in Condensed Matter (1992 : Il Ciocco, Italy), eds. Ultrashort processes in condensed matter. New York: Plenum Press, 1993.

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Suryanarayana, M. V. Experimental and theoretical investigations on isotope selective excitation in multi-step laser photoionisation schemes: A spectral simulation approach. Mumbai: Bhabha Atomic Research Centre, 2001.

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Book chapters on the topic "Laser excitation"

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Wester, R., H. Schülke, K. Schmitt, and H. Schwede. "High Frequency Excitation of CO2 Lasers." In Laser/Optoelektronik in der Technik / Laser/Optoelectronics in Engineering, 33–39. Berlin, Heidelberg: Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-82638-2_6.

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Fayer, M. D. "Excitation Transport in Polymeric Solids." In Laser Optics of Condensed Matter, 157–63. Boston, MA: Springer US, 1991. http://dx.doi.org/10.1007/978-1-4615-3726-7_23.

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Chu, S., A. P. Mills, A. G. Yodh, K. Nagamine, H. Miyake, and T. Kuga. "Excitation of the 1S-2S Transition in Muonium." In Laser Spectroscopy VIII, 28–29. Berlin, Heidelberg: Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/978-3-540-47973-4_7.

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Leach, Sydney. "Laser and Synchrotron-Based Excitation Sources for Relaxation Studies." In Applied Laser Spectroscopy, 69–99. Boston, MA: Springer US, 1990. http://dx.doi.org/10.1007/978-1-4684-1342-7_7.

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Schmitt, K., H. Schülke, and R. Wester. "UHF Excitation of an Axial Flow CO2 Laser." In Laser/Optoelektronik in der Technik / Laser/Optoelectronics in Engineering, 28–32. Berlin, Heidelberg: Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-82638-2_5.

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Bukshtab, Michael. "Spectroscopic Interferometry and Laser-Excitation Spectroscopy." In Springer Series in Optical Sciences, 655–717. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-10-7745-6_12.

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Chanetz, Bruno, Jean Délery, Patrick Gilliéron, Patrick Gnemmi, Erwin R. Gowree, and Philippe Perrier. "Laser Spectroscopy and Electron Beam Excitation." In Springer Tracts in Mechanical Engineering, 261–72. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-35562-3_12.

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Hoheisel, W., M. Vollmer, and F. Träger. "Photodesorption of metal atoms by collective electron excitation." In Laser Ablation Mechanisms and Applications, 77–81. New York, NY: Springer New York, 1991. http://dx.doi.org/10.1007/bfb0048355.

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Kruer, William L. "Parametric Excitation of Electron and Ion Waves." In The Physics Of Laser Plasma Interactions, 57–72. Boca Raton: CRC Press, 2019. http://dx.doi.org/10.1201/9781003003243-6.

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Sage, Martin L. "Multiphoton Excitation of Bond Modes." In Atomic and Molecular Processes with Short Intense Laser Pulses, 447–51. Boston, MA: Springer US, 1988. http://dx.doi.org/10.1007/978-1-4613-0967-3_53.

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Conference papers on the topic "Laser excitation"

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Hutchinson, John S. "Theory for coherent multicolor laser excitation of localized states." In International Laser Science Conference. Washington, D.C.: Optica Publishing Group, 1986. http://dx.doi.org/10.1364/ils.1986.tuc5.

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By studying the dynamics of the laser excitation process in a dressed states picture, we have recently shown that, in many cases of photochemical interest, the time scale for molecular excitation is many orders of magnitude slower than the time scale for in tramolecular relaxation. As a result, single laser radiation offers little if any control over the form of the initial excitation in these cases. However, if one tunes two (or n) different lasers to two (or n) different molecular eigenstates, then a superimposition of the eigenstates will be prepared coherently. Furthermore, that coherent superimposition will continue to be the molecular state as long as the lasers are on. This coherent multicolor (CMC) excitation can be used to destructively interfere with the relaxed portions of the excited eigenstates. The result is excitation of a nonstationary molecular state which does not evolve in the presence of the laser field. The localization is locked in by the coherence of the multicolor excitation. We apply the CMC proposal to preparation of localized vibrational overtones of molecular local modes and to the separation and selective control of excitations of singlet and triplet vibronic states. Control of unimolecular reaction rates and branching ratios is proposed and illustrated.
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Zhu, Yifu, A. Lezama, and T. W. Mossberg. "Vacuum enhanced atomic excitation." In ADVANCES IN LASER SCIENCE−IV. AIP, 1989. http://dx.doi.org/10.1063/1.38671.

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Barré, Nicolas, Marco Romanelli, and Marc Brunel. "High-Order Modes Excitation and Cavity Degeneracy." In Laser Science. Washington, D.C.: OSA, 2013. http://dx.doi.org/10.1364/ls.2013.lth4f.2.

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Provorov, Alexander S., M. Y. Reushev, and S. A. Fen. "Waveguide CO2 amplifier with combined excitation." In Laser Optics '95, edited by Inna M. Belousova. SPIE, 1996. http://dx.doi.org/10.1117/12.238529.

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Briegel, Hans-Juergen, Georg M. Meyer, and Berthold-Georg Englert. "Correlated atomic excitation in multilevel lasers." In Laser Optics '95, edited by Neal B. Abraham and Yakov I. Khanin. SPIE, 1996. http://dx.doi.org/10.1117/12.239183.

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Pfau, T., H. Kübler, T. Baluktsian, B. Huber, A. Kölle, J. P. Shaffer, and R. Löw. "Coherent Rydberg excitation in microscopic thermal vapor cells." In Laser Science. Washington, D.C.: OSA, 2010. http://dx.doi.org/10.1364/ls.2010.ltud1.

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Hohenleutner, M., O. Schubert, F. Langer, B. Urbanek, C. Lange, U. Huttner, D. Golde, et al. "Coherent Bloch Oscillations Driven by Ultrastrong THz Excitation." In Laser Science. Washington, D.C.: OSA, 2014. http://dx.doi.org/10.1364/ls.2014.ltu4i.2.

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Khulugurov, Vitaliy M., Nikolai Ivanov, and Eugeniy A. Oleynikov. "Nanosecond lasers based on SRS with resonant excitation." In Laser Optics, edited by Artur A. Mak. SPIE, 1994. http://dx.doi.org/10.1117/12.183095.

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Helvajian, Henry, Lawrence H. Wiedeman, and H. S. Kim. "Low-fluence laser excitation processes." In Optics Quebec, edited by Ian W. Boyd. SPIE, 1994. http://dx.doi.org/10.1117/12.167540.

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Jara, H., U. Johann, T. S. Luk, I. A. McIntyre, A. McPherson, A. P. Schwarzenbach, K. Boyer, and Charles K. Rhodes. "Multiphoton excitation and ionization of atoms." In International Laser Science Conference. Washington, D.C.: Optica Publishing Group, 1986. http://dx.doi.org/10.1364/ils.1986.jwa1.

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New physical phenomena are expected to occur1 with irradiation of atomic and molecular materials with subpicosecond ultraviolet radiation at intensities above ~1018 W/cm2. One such phenomenon is electron-positron pair production.
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Reports on the topic "Laser excitation"

1

Keto, J. W. Kinetic studies following state-selective laser excitation. Office of Scientific and Technical Information (OSTI), January 1992. http://dx.doi.org/10.2172/5747549.

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Keto, J. W. Kinetic studies following state-selective laser excitation. Office of Scientific and Technical Information (OSTI), January 1991. http://dx.doi.org/10.2172/6248672.

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Keto, J. Kinetic studies following state-selective laser excitation. Office of Scientific and Technical Information (OSTI), October 1989. http://dx.doi.org/10.2172/5486149.

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Robert Averback. Fast Laser Excitation and Ultrahigh Strain-Rate Deformation. Office of Scientific and Technical Information (OSTI), June 2007. http://dx.doi.org/10.2172/908218.

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Stultz, Carl. Liquid transmission line pulser circuit for laser excitation. Portland State University Library, January 2000. http://dx.doi.org/10.15760/etd.5234.

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Siders, C. W., S. P. Le Blanc, D. Fisher, T. Tajima, M. C. Downer, A. Babine, A. Stepanov, and A. Sergeev. Laser wakefield excitation and measurement by femtosecond longitudinal interferometry. Office of Scientific and Technical Information (OSTI), April 1996. http://dx.doi.org/10.2172/238564.

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Gennady Shvets, Nathaniel J. Fisch, and and Alexander Pukhov. Excitation of Accelerating Plasma Waves by Counter-propagating Laser Beams. Office of Scientific and Technical Information (OSTI), August 2001. http://dx.doi.org/10.2172/788202.

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Gene Capelle and Steve Jones. Plant-Stress Measurements Using Laser-Induced Fluorescence Excitation: Poland Experiment. Office of Scientific and Technical Information (OSTI), May 1999. http://dx.doi.org/10.2172/10608.

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Dunn, J. ,. LLNL. Table-top transient collisional excitation x-ray laser research at LLNL: Status June 1997. Office of Scientific and Technical Information (OSTI), July 1997. http://dx.doi.org/10.2172/302201.

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Pavlopoulos, T. G. Measurement of Triplet Optical Densities of Organic Compounds by Means of CW Laser Excitation. Fort Belvoir, VA: Defense Technical Information Center, January 1991. http://dx.doi.org/10.21236/ada235897.

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