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Dissertations / Theses on the topic 'Lasers'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Friart, Gaetan. "Semiconductor laser dynamics: two polarization feedback, quantum cascade lasers, and ring lasers." Doctoral thesis, Universite Libre de Bruxelles, 2017. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/248835.

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Semiconductor lasers (Sls) are very sensitive to external perturbations which may destabilize their steady output. This is particularly striking when the SL is subject to optical feedback, i.e. when part of the light coming out of the laser is reinjected in the cavity after reflection from a distant mirror. For some applications, this is a nuisance that we wish to avoid. But optical feedback may also drive the laser into dynamical regimes which are useful for new applications. In this thesis, we study different problems where an SL is subject to a delayed feedback or to an injected signal. The

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2

Wadsworth, W. J. "Copper vapour laser pumped TI:sapphire lasers." Thesis, University of Oxford, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.389029.

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3

Maker, Gareth Thomas. "Diode laser pumped solid state lasers." Thesis, University of Southampton, 1990. https://eprints.soton.ac.uk/397281/.

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This thesis deals with the development of diode laser pumped solid state lasers. The earliest work presented enabled 125W peak power, single frequency Q-switched pulses to be obtained from a 100mW diode laser pumped Nd:YAG laser. Using a 500mW diode laser as a pump source for C.W. Nd:YAG and Nd:YLF oscillators an Yb:Er fibre laser was pumped, producing 0.75mW C.W. power at a wavelength of 1.56µm. Acousto-optic mode-locking techniques were used to provide C.W. mode-locked pulse durations in Nd:YAG and Nd:YLF of 55ps and 18ps respectively, at repetition rates of 240MHz. Frequency modulation mode

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4

Kapitan, Daniel. "Laser ablation with copper vapour lasers." Thesis, University of Oxford, 1999. https://ora.ox.ac.uk/objects/uuid:a1dc1a3b-602a-4ebb-abe2-734e8e11f15a.

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The use of copper vapour lasers for laser ablation in laser materials processing applications is studied. To this purpose, the generation of near diffraction-limited beam quality output from a single medium-scale oscillator is demonstrated via matching the total buffer gas pressure to the specific electrical input power loading and the degree of insulation of the plasma tube. The design and characterisation of a Master-Oscillator Power-Amplifier system based on a smallbore oscillator is also described, focusing on pulse stretching techniques to provide efficient seeding required for producing

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5

Rabeendran, Nishanthan. "New Approaches to Gyroscopic Lasers." Thesis, University of Canterbury. Physics and Astronomy, 2013. http://hdl.handle.net/10092/8609.

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This thesis presents a study of two aspects of ring laser gyroscopes: Correction of systematic errors due to optical backscatter, and development of solid-state ring laser gyroscopes. Backscatter at the optical surfaces of ring laser gyroscopes causes systematic measurement errors. These errors were modelled and corrected for in large ring lasers. The model included backscattering, hole burning and dispersion in the gain medium. The model predictions were used in conjunction with measurements of the intensity modulation of each beam and the phase difference between these modulation to co

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6

Hempler, Nils. "Semiconductor disk laser pumped Cr²⁺:chalcogenide lasers." Thesis, University of Strathclyde, 2010. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=15339.

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7

Chaaban, Hani. "Etudes et conception de sources lasers. Mise au point de lasers submillimétriques : application à l'analyse des spectres induits." Aix-Marseille 3, 1988. http://www.theses.fr/1988AIX30051.

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Un laser co#2 continu construit au laboratoire est stabilise en puissance et utilise pour pomper un laser moleculaire. L'utilisation du methanol comme milieu amplificateur permet d'apprecier le fonctionnement sur de nombreuses raies irl. Deux lasers co#2 a impulsions balayables et monomodes ont ete perfectionnes, permettant par l'intermediaire d'un cristal non lineaire d'obtenir la generation d'ondes submillimetriques par difference des frequences (voisines) des lasers primaires. Une application est faite a l'etude du spectre induit de l'azote vers quelques cm##1. On calcule les moments spectr

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8

Zhu, Xiang. "Tunable diode lasers and their applications in trace gas and liquid detection /." *McMaster only, 1996.

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9

Serres, Serres Josep Maria. "Continuous-wave and passively Q-switched solid-state microchip lasers in the near-infrared." Doctoral thesis, Universitat Rovira i Virgili, 2017. http://hdl.handle.net/10803/460758.

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Aquest treball tracta de la caracterització de làsers compactes d'estat sòlid, amb un primer enfocament, l'estudi del concepte microxip aplicat al làser en diversos hostes cristal·lins dopats amb terres rares. Es reporta els resultats sobre l'estudi de l'efecte de thermal lens, necessari per a l'obtenció de làser amb aquesta configuració, així com pel funcionament làser amb continu i polsat utilitzant la tècnica Q-switch. En els experiments, el concepte microxip es defineix com una cavitat làser quasi monolítica. Aquest concepte s'estudia per a diferents emissions de làser a ~1.06 m d'ion

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10

Kifle, Esrom Aschenaki. "Fabrication and characterization of waveguide lasers operating in the infrared spectral range." Doctoral thesis, Universitat Rovira i Virgili, 2019. http://hdl.handle.net/10803/668351.

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Aquest treball de tesi ha tractat la fabricació i la caracterització de làsers de guia d’ona compactes i eficients que funcionen en règims d’ona contínua i Q-commutat de forma passiva al voltant dels 2 micròmetres en l’espectre electromagnètic. Per aconseguir-los, es van utilitzar materials cristal•lins basats en tungstats dobles d’estructura monoclínica dopats amb erbi (Er3+), tuli (Tm3+) o holmi (Ho3+). Aquests materials làser es van escollir per les seves propietats òptiques d’emissió i absorció que els fan aptes per aconseguir dispositius compactes. Per a la fabricació i l'estructuració de

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11

Stetler, Aaron M. "Active vibration control for free electron lasers." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2003. http://library.nps.navy.mil/uhtbin/hyperion-image/03Dec%5FStetler.pdf.

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Thesis (M.S. in Applied Physics)--Naval Postgraduate School, December 2003.<br>Thesis advisor(s): Bruce C. Denardo, Thomas J. Hofler. Includes bibliographical references (p. 81). Also available online.

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12

SANTOS, ROBERTO de B. "Microfuracao com laser pulsado." reponame:Repositório Institucional do IPEN, 2001. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10900.

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Made available in DSpace on 2014-10-09T12:45:17Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:10:19Z (GMT). No. of bitstreams: 1 07158.pdf: 11508502 bytes, checksum: 98450a4e95ed9ee46e9cd94023b1502e (MD5)<br>Dissertacao (Mestrado)<br>IPEN/D<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP

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13

Hönninger, Clemens. "Ultrafast ytterbium-doped bulk lasers and laser amplifiers /." [S.l.] : [s.n.], 1998. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=12952.

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14

Edwards, Matthew. "Characterisation and laser applications of X-ray lasers." Thesis, University of York, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.428485.

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15

Roth, Peter. "Directly diode-laser-pumped titanium-doped sapphire lasers." Thesis, University of Strathclyde, 2012. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=18125.

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Titanium-doped sapphire is one of the most versatile laser gain materials. Tunable between 0.7 m and 1.1 m and capable of generating femtosecond pulses, the Ti:sapphire laser has become an important tool for many applications. Its ubiquitous use across many scientific disciplines is increasingly complemented by commercial applications including imaging, spectroscopy, micro-processing of materials and the generation of terahertz radiation. However, today's Ti:sapphire lasers are complex, bulky and expensive, leaving many applications unaddressed, particularly where lower costs and smaller footp

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16

Gallaher, Nigel R. "Narrow linewidth, diode laser pumped, solid state lasers." Thesis, University of St Andrews, 1994. http://hdl.handle.net/10023/13717.

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The design, construction, evaluation and development of an all solid state, narrow linewidth laser source is presented. The narrow linewidth laser system was based on a miniature standing wave Nd:YAG laser cavity, end-pumped with 100mW of 809nm light from a fibre coupled GaAlAs diode laser array. This basic CW laser generated up to 30mW at 1064nm in a single, diffraction limited transverse mode (TEM00) but multi-longitudinal mode output beam. The laser had a pump power threshold of 24mW and an optical to optical slope efficiency of 39%. A simple rate equation based numerical model of this lase

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17

Bronski, Mark T. "Development of a process for characterization of Nd:YAG crystals." Link to electronic thesis, 2003. http://www.wpi.edu/Pubs/ETD/Available/etd-0409103-104942.

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18

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

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19

Jacquet, Joel. "Évolution des diodes lasers pour les télécommunications optiques : Lasers accordables, Lasers à émission par la surface, Lasers bas coûts." Habilitation à diriger des recherches, Université Montpellier II - Sciences et Techniques du Languedoc, 2004. http://tel.archives-ouvertes.fr/tel-00922621.

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Les travaux présentés ci-après reprennent mes activités depuis le début de ma thèse en 1986. Ils ont été entièrement réalisés dans le centre de recherche d'Alcatel à Marcoussis dans le but de concevoir, réaliser et tester des composants optoélectroniques à semi-conducteurs pour des applications en télécommunications optiques. Ces composants sont à base de Phosphure d'Indium (InP) et sont destinés à émettre ou détecter de la lumière à des longueurs d'ondes proches de 1300 ou 1550 nm suivant l'application. J'ai pu bénéficier de toute l'infrastructure nécessaire au développement et à l'aboutissem

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20

Musaev, Omar Wróbel Jerzy. "UV laser assisted processing of InP at different ambient conditions with variable number of pulses and fluences." Diss., UMK access, 2006.

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Thesis (Ph. D.)--Dept. of Physics and School of Computing and Engineering. University of Missouri--Kansas City, 2006.<br>"A dissertation in physics and telecommunications networking." Advisor: Jerzy Wrobel. Typescript. Vita. Title from "catalog record" of the print edition Description based on contents viewed Nov. 1, 2007. Includes bibliographical references (leaves 185-190). Online version of the print edition.

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21

Zhu, Shiqun. "Statistical fluctuations in laser transients." Diss., Georgia Institute of Technology, 1987. http://hdl.handle.net/1853/30993.

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22

Chardonnet, Christian. "Spectroscopie de saturation de haute précision et sensibilité en champ laser fort : applications aux molécules OSO4, SF6 et CO2 et à la métrologie des fréquences." Paris 13, 1989. http://www.theses.fr/1989PA132026.

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Ce mémoire présente des résultats théoriques et experimentaux obtenus à partir de l'étude des structures hyperfines dans la bande nu3 de la molécule oso4. L'observation à l'aide de lasers à co2 ultrastables et d'un spéctromètre à tres haute résolution et l'analyse de structures hyperfines de 189oso4 et 187oso4 ont conduit à la détermination tres précise de toutes les constantes hyperfines importantes des niveaux v3=0 et v3=1, grâce à l'observation de croisements de niveaux hyperfins. Une relation entre constantes de spin-rotation et de spin-vibration a étè montrée et interpretée. La difference

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23

Guionie, Marie. "Lasers à fibres bifréquences bipolarisations : stabilisation et montée en fréquence du battement." Thesis, Rennes 1, 2020. http://www.theses.fr/2020REN1S059.

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Cette étude porte sur les lasers à fibres bifréquences bipolarisations. Le contrôle de la différence de fréquence de ces lasers représente un enjeu important en photonique microonde. En effet, maîtriser le battement permettrait la réalisation de sources compactes et à faible bruit visant des applications de métrologie ou télécom. Nous travaillons ici sur des sources émettant à 1,5 μm, de type DFB ou DBR, soit dopés Er soit co-dopés Er-Yb. Ils présentent une fréquence de battement d'environ 1 GHz pour les DFB, et 100 MHz pour les DBR. Les objectifs de la thèse ont été, d'abord de stabiliser le

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24

Holden, Philip Bernard. "Numerical modelling of laser produced plasmas as XUV lasers." Thesis, University of York, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.292556.

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25

Rossi, Sandro Marcelo. "PC-LASER : um software para simulação de lasers semicondutores." [s.n.], 1994. http://repositorio.unicamp.br/jspui/handle/REPOSIP/258927.

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Orientador: Edson Moschim<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Eletrica<br>Made available in DSpace on 2018-07-23T11:46:05Z (GMT). No. of bitstreams: 1 Rossi_SandroMarcelo_M.pdf: 3646439 bytes, checksum: 44163bb4aef95b7dab797acb883b36ac (MD5) Previous issue date: 1994<br>Resumo: Devido ao baixo custo e o alto desempenho dos microcomputadores disponíveis hoje no mercado, a simulação em microcomputadores desempenha um papel cada vez mais importante na análise e projeto de componentes e sistemas. Nos últimos anos, um número cada vez maior de pro

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26

Anderson, Andrew Alan. "Crystalline planar waveguide lasers fabricated by pulsed laser deposition." Thesis, University of Southampton, 1998. https://eprints.soton.ac.uk/394391/.

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This work describes the fabrication and performance characteristics of crystalline planar waveguide lasers produced by the pulsed laser deposition technique. This project was undertaken to establish that the pulsed laser deposition technique could be utilised to manufacture crystalline planar waveguide lasers with both rare earth and transition metal dopants. In the first instance a crystalline layer of neodymium doped Gd3Ga5O12 was grown on a Y3Al5O12, substrate. This structure was made to lase at ~1.06µm when pumped at 808nm using a Ti:sapphire laser. This result constitutes the first report

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27

Gévaudan, Alain. "Modélisation d'un laser à exciplexe XeCL à décharge par avalanche préionisée par faisceau de rayons X." Aix-Marseille 2, 1986. http://www.theses.fr/1986AIX22052.

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Laser xecl a decharge par avalanche preionisee par faisceau de rayons x, utilisant un circuit de decharge a condensateur de transfert ou a ligne de transmission. Les phenomenes electroniques presents au tout debut de l'avalanche de la decharge preionisee du laser sont etudies dans le but d'etablir les conditions necessaires a la formation homogene d'une decharge dans un grand volume. L'etude parametrique de l'optimisation du depot d'energie dans le milieu est effectuee a l'aide d'une modelisation des circuits de decharge. Le modele complet de laser xecl est ensuite etabli, permettant de simule

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28

Sarmani, Abdul Rahman. "Yb-doped femtosecond lasers and their frequency doubling." Thesis, St Andrews, 2008. http://hdl.handle.net/10023/781.

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29

Reppel, Julie-Ann. "Planar laser polarisation spectroscopy imaging in combustion /." Title page, abstract and table of contents only, 2003. http://web4.library.adelaide.edu.au/theses/09PH/09phr4259.pdf.

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30

Chan, Kin Foong. "Pulsed infrared laser ablation and clinical applications /." Digital version:, 2000. http://wwwlib.umi.com/cr/utexas/fullcit?p9992765.

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31

Taylor, Jason Matthew 1977. "Controlling molecules with lasers and lasers with molecules." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/38638.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, School of Architecture and Planning, Program in Media Arts and Sciences, February 2007.<br>Includes bibliographical references (leaves 140-146).<br>I investigate quantum control of spin in molecules using shaped ultrafast lasers and the dynamics of those lasers when their cavities are modified to include programmable molecular masks. The ability to control quantum phenomena has had several large successes over the last decade. This field, known as Quantum Control, uses closed loop learning algorithms to shape ultrashort laser pulses in or

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32

MAZIGHI, KHALED. "Lasers a centres colores pompes par diodes lasers." Caen, 1991. http://www.theses.fr/1991CAEN2038.

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L'amelioration d'un laser a centres colores utilisant le fluorure de sodium dope au magnesium pompe par une diode laser de puissance, a ete accomplie. Ce laser delivre actuellement 35 milliwatts en emission continue sous 480 milliwatts de pompe pour un miroir de sortie de 4 pourcent de transmission, et peut etre accorde entre 1009 et 1175 nanometres pour une transmission de 0,5% de son miroir de sortie; les centres actifs ne sont pas severement blanchis par ce mode de pompage. Le blocage des modes longitudinaux de ce laser a ete realise par deux methodes simples qui ne necessitent l'introducti

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33

Parrotta, Daniele Carmine. "Raman lasers intracavity-pumped by semiconductor disk lasers." Thesis, University of Strathclyde, 2012. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=24895.

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Semiconductor disk lasers (SDLs) are efficient and commercially attractive devices as they can emit several Watts in continuous-wave (cw) operation, with good beam quality, low noise and great wavelength flexibility. SDL fundamental emission ranges from red to mid-infrared, while ultraviolet and other visible wavelength can be obtained via harmonic generation. This research shows that Raman conversion is an efficient way to extend the spectral coverage of well-established SDLs. The first experimental work consisted in the demonstration of a KGW Raman laser intracavity-pumped by a 1055 nm InGaA

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34

Wang, Yuchen, Xiushan Zhu, Jie Zong, et al. "SESAM Q-switched fiber laser at 1.2 mu m." IEEE, 2016. http://hdl.handle.net/10150/622787.

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Q-switched operation of a holmium-doped fluoride fiber laser at 1.2 mu m wavelength induced by a semiconductor saturable absorber mirror (SESAM) is reported. 650 ns pulses with 0.13 mu J pulse energy at a repetition rate of 260 kHz were obtained.

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35

Naylor, G. A. "Recombination lasers." Thesis, University of Oxford, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.355788.

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36

Johnson, Kristie Shureen. "Ce:LiLuf4 lasers." Thesis, University of Oxford, 2003. http://ora.ox.ac.uk/objects/uuid:6e3f763c-ebb4-4959-974b-aa5ae447c51b.

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The research in this project was directed, firstly towards gaining an understanding of the effect excited-state absorption (ESA) has on gain and lasing in broadly tunable Ce:LiLuF lasers and secondly towards the development of Ce:LiLuF lasers suitable for spectroscopic applications. Detailed measurements of the single-pass, small-signal gain in Ce:LiLuF were undertaken, with a gain coefficient as high as 30±1 cm<sup>-1</sup> at 309 nm, with an absorbed pump fluence of 0.46 Jcm<sup>-2</sup>. Further, the ESA in Ce:LiLuF at 261 nm and 349 nm was measured. Using both the gain and ESA results in a

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37

Backes, Sacha Akira. "Microdisk lasers." Thesis, University of Cambridge, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.624363.

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38

Hillier, David Ianto. "Holographic lasers." Thesis, University of Southampton, 2004. https://eprints.soton.ac.uk/65502/.

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This thesis presents the development of CW adaptive solid state lasers which dynamically correct for phase distortions within their cavity by phase conjugation. A fibre based four-wave mixing scheme is investigated but no experimental evidence of any phase conjugation is observed.

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39

Conroy, Richard. "Microchip lasers." Thesis, St Andrews, 1998. http://hdl.handle.net/10023/531.

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CAVELIER, MARC. "Etude de la dynamique des lasers a semiconducteurs : lasers a puits quantiques et lasers conventionnels." Paris 11, 1992. http://www.theses.fr/1992PA112237.

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Les lasers a puits quantiques constituent des sources remarquables par leur compacite et leurs performances dynamiques sous injection electrique. Par un traitement perturbatif des equations de la matrice densite, nous calculons la susceptibilite electromagnetique du milieu actif, pour des structures a puits quantiques ou massives. Nous montrons les avantages dus a la quantification pour le gain differentiel et le facteur de couplage phase-amplitude. Dans ce modele, la non-linearite du gain, proportionnelle a l'intensite de l'emission stimulee, est independante du type de structure si les temps

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41

Resan, Bojan. "DISPERSION-MANAGED BREATHING-MODE SEMICONDUCTOR MODE-LOCKED RING LASER." Doctoral diss., University of Central Florida, 2004. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/2907.

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A novel dispersion-managed breathing-mode semiconductor mode-locked ring laser is developed. The "breathing-mode" designation derives from the fact that intracavity pulses are alternately stretched and compressed as they circulate around the ring resonator. The pulses are stretched before entering the semiconductor gain medium to minimize the detrimental strong integrating self-phase modulation and to enable efficient pulse amplification. Subsequently compressed pulses facilitate bleaching the semiconductor saturable absorber. The intracavity pulse compression ratio is higher than 50. Down chi

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42

Chan, Mun Kit. "Atmospheric transmission windows for high energy short pulse lasers." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2003. http://library.nps.navy.mil/uhtbin/hyperion-image/03Dec%5FChan%5FMun.pdf.

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Thesis (M.S. in Combat Systems Technology)--Naval Postgraduate School, December 2003.<br>Thesis advisor(s): Donald L. Walters, Alfred W. Cooper. Includes bibliographical references (p. 73-74). Also available online.

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43

Savels, Tom. "Scattering lasers an exploration of the smallest lasers possible /." [S.l. : Amsterdam : s.n] ; Universiteit van Amsterdam [Host], 2007. http://dare.uva.nl/document/42004.

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44

Bettaibi, Islam. "Développement et caractérisation des lasers XUV créés par laser femtoseconde." Phd thesis, Ecole Polytechnique X, 2005. http://tel.archives-ouvertes.fr/tel-00179321.

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Les sources XUV cohérentes présentent un potentiel important d'applications scientifiques, médicales et industrielles. Le développement des lasers ultra intenses a permis la réalisation de nouvelles sources XUV cohérentes et brèves, comme la génération d'harmonique d'ordre élevée et les lasers XUV. Ces sources sont compactes, peu coûteuses par rapport aux sources classiques telles que les synchrotrons, et présentent donc un intérêt tout particulier.<br /><br />Cette thèse présente une série d'études sur une nouvelle source laser XUV, pompée par un laser femtoseconde fonctionnant à 10 Hz. Un la

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Tolchard, J. M. "Doppler free laser spectroscopy of atomic hydrogen using pulsed lasers." Thesis, University of Southampton, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.383868.

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Bettaïbi, Islam. "Développement et caractérisation des lasers XUV crées par laser femtoseconde." Palaiseau, Ecole polytechnique, 2005. http://www.theses.fr/2005EPXX0035.

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Les sources XUV cohérentes présentent un potentiel important d'applications scientifiques, médicales et industrielles. Le développement des lasers ultra intenses a permis la réalisation de nouvelles sources XUV cohérentes et brèves, comme la génération d'harmonique d'ordre élevée et les lasers XUV. Ces sources sont compactes, peu coûteuses par rapport aux sources classiques telles que les synchrotrons, et présentent donc un intérêt tout particulier. Cette thèse présente une série d'études sur une nouvelle source laser XUV, pompée par un laser femtoseconde fonctionnant à 10 Hz. Un laser ultra i

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Bettaïbi, Islam Sebban Stéphane. "Développement et caractérisation des lasers XUV crées par laser femtoseconde." [S. l.] : [s.n], 2005. http://www.polymedia.polytechnique.fr.

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48

Piccioni, Máyra Andressa Rodrigues Valinhos [UNESP]. "Resistência de união ao microcisalhamento de sistemas adesivos autocondicionates com graus de acidez distintos: efeito de diferentes tratamentos em substrato dentinário normal e hipermineralizado artificialmente." Universidade Estadual Paulista (UNESP), 2014. http://hdl.handle.net/11449/110816.

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Abstract:

Made available in DSpace on 2014-12-02T11:16:37Z (GMT). No. of bitstreams: 0 Previous issue date: 2014-01-30Bitstream added on 2014-12-02T11:21:09Z : No. of bitstreams: 1 000794165_20180130.pdf: 649617 bytes, checksum: cc82165b8f04d814d26a472e73829ca1 (MD5) Bitstreams deleted on 2018-02-02T12:11:20Z: 000794165_20180130.pdf,. Added 1 bitstream(s) on 2018-02-02T12:12:04Z : No. of bitstreams: 1 000794165.pdf: 10547285 bytes, checksum: 527da52509be61f1455018679a53af74 (MD5)<br>O objetivo deste trabalho, dividido em três estudos: foi avaliar a resistência de união de diferentes sistemas adesivos

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Panning, Nathan Joel. "Design of a laser doppler velocimeter for measurement of the relative linear velocity of rough surfaces." Thesis, Georgia Institute of Technology, 1989. http://hdl.handle.net/1853/18357.

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Correia, Ricardo Rego Bordalo. "Estudo das bandas difusas do Na2 excitados por laser ultravioleta." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 1988. http://hdl.handle.net/10183/149207.

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Abstract:

Neste trabalho foi feito um esforço para analisar o comportamento do perfil das bandas difusas violetas de emissão do dimero de sódio induzida por um laser de nitrogênio, no vapor de sódio produzido dentro de uma célula do tipo Heat-Pipe Oven, variando-se a temperatura e a pressão do gás inerte. Além disso, foi feita uma tentativa de identificação das bandas violetas e ultravioletas produzidas no mesmo sistema por um laser de excímero. Tanto para a emissão induzida pelo laser de nitrogênio, como pelo laser de excímero, um programa de computador desenvolvido por nós para simular estes espectros

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