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1

Charpin, Pierre-Jean. "Modélisation de l'interaction laser-plasma dans les faisceaux de Bessel femtoseconde." Electronic Thesis or Diss., Bourgogne Franche-Comté, 2024. http://indexation.univ-fcomte.fr/nuxeo/site/esupversions/fe2dc0aa-3386-4ecd-a96f-7f70a3113aa7.

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Les impulsions femtoseconde mises en forme de faisceaux de Bessel permettent de créer des nano-plasmas denses dans les diélectriques, menant à la formation de nano-vides à très haut rapport de forme pour des applications dans le domaine de la microélectronique. La modélisation de l'interaction laser-plasma est de prime importance pour comprendre l'évolution spatio-temporelle de la création de plasma et du dépôt d'énergie par l'impulsion laser femtoseconde. Ceci permettra de développer une interaction laser-matière extrêmement efficace dans d'autres géométries et matériaux. La thèse a pour obje
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2

Wefers, Marc Michael. "Femtosecond optical pulse shaping and multiple-pulse femtosecond spectroscopy." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/10597.

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3

Fernández, González Alma. "Chirped pulse oscillators generating microjoule femtosecond pulses at megahertz repetition rate /." [S.l.] : [s.n.], 2007. http://edoc.ub.uni-muenchen.de/archive/00006967.

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4

Fernández, González Alma. "Chirped Pulse Oscillators: Generating microjoule femtosecond pulses at megahertz repetition rate." Diss., lmu, 2007. http://nbn-resolving.de/urn:nbn:de:bvb:19-69673.

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5

Belloni, Valeria. "Spatial and temporal pulse shaping for ultrafast laser materials processing." Electronic Thesis or Diss., Bourgogne Franche-Comté, 2023. http://www.theses.fr/2023UBFCD055.

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Le traitement par laser ultrarapide a suscité un grand intérêt dans les applications industrielles en raison de sa capacité à réaliser une ablation précise et de haute qualité dans les matériaux. Cependant, les contraintes liées aux lasers, telles que l'énergie des impulsions et les taux de répétition, ont limité son développement, en particulier dans les environnements industriels.Dans ce cadre, la personnalisation des profils spatiaux et temporels des faisceaux laser peut améliorer l'interaction entre le laser et le matériau. Les techniques de mise en forme des faisceaux jouent un rôle cruci
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6

Chin, Roger S. "Femtosecond laser pulse compression." Thesis, University of British Columbia, 1991. http://hdl.handle.net/2429/29799.

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Once the Spectra-Physics Femtosecond Laser System had arrived, it had to be characterized. For further pulse compression, various techniques had to be considered. The best of these were chosen considering our needs and limitations. First, the Spectra-Physics Femtosecond Laser System is described and its 616 nm laser pulses are characterized. By using an autocorrelation technique based on the nonlinear optical characteristics of a potassium dihydrogen phosphate (KDP) crystal and assuming a particular intensity pulse shape (such as that described by a symmetric exponential decay), the pulse wi
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7

Dooley, Patrick W. Corkum Paul B. "Molecular imaging using femtosecond laser pulses." *McMaster only, 2003.

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8

Kafka, Kyle R. P. "Laser-Induced Damage with Femtosecond Pulses." The Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1483661596059632.

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9

Chanal, Margaux. "Space-time study of energy deposition with intense infrared laser pulses for controlled modification inside silicon." Thesis, Aix-Marseille, 2017. http://www.theses.fr/2017AIXM0488/document.

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La modification du silicium dans son volume est possible aujourd’hui avec des lasers infrarouges nanosecondes. Néanmoins, le régime d’intérêt pour la modification contrôlée en volume des matériaux transparents correspond aux impulsions femtosecondes. Cependant, aujourd’hui aucune démonstration de modification permanente du volume du Si n’a été réalisée avec une impulsion ultra-brève (100 fs). Pour infirmer ce résultat, nous avons développé des méthodes de microscopie infrarouge ultra-rapides. Tout d’abord, nous étudions le microplasma confiné dans le volume, caractérisé par la génération de po
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10

Bowlan, Pamela. "Measuring the spatiotemporal electric." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/28188.

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Thesis (M. S.)--Physics, Georgia Institute of Technology, 2009.<br>Committee Chair: Rick Trebino; Committee Member: Jennifer Curtis; Committee Member: John Buck; Committee Member: Mike Chapman; Committee Member: Stephen Ralph.
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11

Bock, Katherine J. "Femtosecond Fiber Lasers." Thèse, Université d'Ottawa / University of Ottawa, 2012. http://hdl.handle.net/10393/23391.

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This thesis focuses on research I have done on ytterbium-doped femtosecond fiber lasers. These lasers operate in the near infrared region, lasing at 1030 nm. This wavelength is particularly important in biomedical applications, which includes but is not limited to confocal microscopy and ablation for surgical incisions. Furthermore, fiber lasers are advantageous compared to solid state lasers in terms of their cost, form factor, and ease of use. Solid state lasers still dominate the market due to their comparatively high energy pulses. High energy pulse generation in fiber lasers is hindered b
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12

Gabolde, Pablo. "Measurements of the spatio-temporal profiles of femtosecond laser pulses." Diss., Available online, Georgia Institute of Technology, 2007, 2007. http://etd.gatech.edu/theses/available/etd-06272007-101312/.

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Thesis (Ph. D.)--Physics, Georgia Institute of Technology, 2008.<br>Trebino, Rick, Committee Chair ; Kennedy, Brian, Committee Member ; Kuzmich, Alex, Committee Member ; Curtis, Jennifer, Committee Member ; Buck, John, Committee Member.
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13

Williams, John Arthur Robert. "An investigation of femtosecond optical pulse generation." Thesis, Imperial College London, 1990. http://hdl.handle.net/10044/1/46608.

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14

Paye, Malini. "Femtosecond pulse generation in solid-state lasers." Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/38019.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1994.<br>Includes bibliographical references (leaves 181-193).<br>by Malini Paye.<br>Ph.D.
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15

Takayanagi, Jun, Norihiko Nishizawa, Hiroyuki Nagai, Makoto Yoshida, and Toshio Goto. "Generation of high-power femtosecond pulse and octave-spanning ultrabroad supercontinuum using all-fiber system." IEEE, 2005. http://hdl.handle.net/2237/6770.

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16

Jeandet, Antoine. "Spatio-temporal characterization of femtosecond laser pulses using self-referenced Fourier transform spectroscopy Spatio-temporal structure of a petawatt femtosecond laser beam Controlling the velocity of a femtosecond laser pulse using refractive lenses." Thesis, université Paris-Saclay, 2020. http://www.theses.fr/2020UPASS089.

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La technologie actuelle des lasers ultrabrefs permet de délivrer des impulsions d'une énergie de quelques dizaines de joules dont la durée est de l'ordre de la dizaine de femtosecondes. Focaliser fortement de telles impulsions permet d'obtenir des valeurs d'éclairement considérables, qui sont notamment utilisées pour générer des faisceaux de particules relativistes. Le bon fonctionnement des lasers de ultra-haute intensité nécessite un excellent contrôle des propriétés du faisceau en tout point de la chaîne d'amplification. Développer un tel niveau de contrôle exige de pouvoir mesurer les impe
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17

Erny, Christian. "Femtosecond Mid-IR chirped pulse optical parametric amplifier /." Zürich : ETH, 2008. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=18065.

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18

Krampert, Gerhard. "Femtosecond quantum control and adaptive polarization pulse shaping." Doctoral thesis, [S.l. : s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=97440814X.

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19

Quarterman, Adrian Hugh. "Femtosecond pulse generation in surface-emitting semiconductor lasers." Thesis, University of Southampton, 2009. https://eprints.soton.ac.uk/72535/.

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In this thesis I report significant advances towards the goal of stable ultrashort pulse generation in mode-locked optically pumped vertical external-cavity surface-emitting lasers (VECSELs). Continuous wave VECSELs were first designed as a type of semiconductor laser capable of producing high output power in near transform-limited beams. Optical pumping allows the output power of the device to be increased simply by increasing the pumped area of the sample, and an external cavity forces the laser into single transverse mode operation. VECSELs’ external cavities also allow for the insertion of
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20

Rahimiangolkhandani, Mitra. "Interaction of Structured Femtosecond Light Pulses with Matter." Thesis, Université d'Ottawa / University of Ottawa, 2021. http://hdl.handle.net/10393/42334.

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Physics and potential applications of femtosecond laser pulses interacting with matter have captured interest in various fields, such as nonlinear optics, laser micromachining, integrated optics, and solar cell technologies. On the one hand, such ultrashort intense pulses make them practical elegant tools to be utilized for direct structuring of materials with high accuracy and numerous potential applications. On the other hand, studying the fundamental aspects and nonlinear nature of such interactions opens new remarkable venues for various unique investigations. In recent years, the emerging
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21

Hort, Ondřej. "High harmonic generation with high energy femtosecond pulses." Thesis, Bordeaux, 2014. http://www.theses.fr/2014BORD0097/document.

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Nous présentons nos travaux sur la génération d’harmoniques élevée (HHG) avec des impulsions térawatt femtosecondes. Nous avons effectué l’HHG avec les impulsions fondamentales de haute énergie et caractérisé l’émission de XUV spatialement et spectralement de manière monocoup et nous avons observé plusieurs structures dans le champ lointain. Ces structures sont très robustes et reproductibles et ont été observés dans de nombreux types de gaz et des géométries de génération. Sans caractérisation monocoup spatiale et spectrale les structures ne sont pas visibles. Nous avons développé des simulat
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22

Kornaszewski, Lukasz. "Novel sources of near- and mid-infrared femtosecond pulses for applications in gas sensing, pulse shaping and material processing." Thesis, Heriot-Watt University, 2008. http://hdl.handle.net/10399/2224.

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In this thesis the design, construction process and the performance of two femtosecond optical parametric oscillators and one second–harmonic generation femtosecond pulse shaper is described. One oscillator was applied to gas sensing while potential applications of other devices are outlined. ATi:sapphire oscillator was used to pump a periodically–poled lithium niobate– based optical parametric oscillator. This signal–resonant device was configured to produce broadband idler pulses tunable in the range of 2.7–3.4 μm. This wavelength coverage was matched to the ν3 optical absorption band of met
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23

Wright, Peter. "Generation, Characterization and Application of the 3rd and 4th Harmonics of a Ti:sapphire Femtosecond Laser." Thèse, Université d'Ottawa / University of Ottawa, 2012. http://hdl.handle.net/10393/20628.

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Femtosecond time-resolved photoelectron spectroscopy (fsTRPES) experiments have been used to study the photoelectron energy spectra of simple molecules since the 1980’s. Analysis of these spectra provides information about the ultrafast internal conversion dynamics of the parent ions. However, ultraviolet pulses must be used for these pump-probe experiments in order to ionize the molecules. Since current solid state lasers, such as the Ti:sapphire laser, typically produce pulses centered at 800nm, it is necessary to generate UV pulses with nonlinear frequency mixing techniques. I therefore
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24

Henderson, Gordon George. "Femtosecond laser studies of fullerenes and nanotubes." Thesis, University of Edinburgh, 2013. http://hdl.handle.net/1842/7737.

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This work concerns the interaction of intense, ultrashort laser pulses with fullerenes and carbon nanotubes. This includes the excitation and ionisation dynamics of gas phase fullerenes and the response of carbon nanotubes to intense ultrashort laser pulses. When ionising C60 with laser pulses of duration between 50 fs up to a few hundred fs, the ionisation mechanism has been proposed to be thermal in nature, with the electronic subsystem ‘hot’ and the vibrational system ‘cold’ at the time of ionisation. Recent results show an anisotropy in the photoelectron angular distribution which may sugg
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25

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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26

Holzwarth, Ronald. "Measuring the frequency of light using femtosecond laser pulses." [S.l.] : [s.n.], 2000. http://deposit.ddb.de/cgi-bin/dokserv?idn=96303006X.

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27

Zeidler, Dirk. "Coherent control of molecular dynamics with shaped femtosecond pulses." [S.l.] : [s.n.], 2001. http://edoc.ub.uni-muenchen.de/archive/00000236.

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28

Borowiec, Andrzej Haugen Harold Kristen. "Ablation and micromachining of INP with femtosecond laser pulses /." *McMaster only, 2004.

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29

Zeidler, Dirk. "Coherent Control of Molecular Dynamics with Shaped Femtosecond Pulses." Diss., lmu, 2002. http://nbn-resolving.de/urn:nbn:de:bvb:19-2367.

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30

Holzwarth, Ronald. "Measuring the Frequency of Light using Femtosecond Laser Pulses." Diss., lmu, 2001. http://nbn-resolving.de/urn:nbn:de:bvb:19-3214.

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31

Alshehri, Ali. "Micro and Nanostructuring of Polymers by Femtosecond Laser Pulses." Thesis, Université d'Ottawa / University of Ottawa, 2016. http://hdl.handle.net/10393/35356.

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Micro/Nanostructuring of polymers by femtosecond pulses is of extreme importance because it drives applications in photonics and biomedicine. A femtosecond pulse, with an intensity of ∼ 10^13 W/cm^2, is capable of causing an optical breakdown and inducing permanent modification in the material. With such high intensity, and considering the fact that polymers possess high band gaps, the interaction nature is completely nonlinear, and the material can be modified locally on the surface and in bulk. The irradiated regions exhibit fluorescence, and they display new wetting properties as a conseque
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32

Badger, Antony Daniel. "Transport in dense plasmas produced by femtosecond laser pulses." Thesis, University of Essex, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.361032.

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33

Brahms, Malte Christian. "Few-femtosecond deep-UV pulses for transient-absorption experiments." Thesis, Imperial College London, 2018. http://hdl.handle.net/10044/1/63816.

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In this thesis I describe the development, implementation and characterisation of a source of wavelength-tunable few-femtosecond laser pulses in the deep ultraviolet spectral region for use in time-resolved experiments. I also propose and model an extension of this source capable of simultaneously generating a single-cycle driving pulse for extreme nonlinear optics as well as a few-femtosecond ultraviolet pulse. Building on advances in the field of femtochemistry, ultrafast science is moving towards ever shorter timescales and more complex systems. One of the key building blocks for the next g
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34

Anderson, Patrick. "High-order harmonic generation with self-compressed femtosecond pulses." Thesis, University of Southampton, 2015. https://eprints.soton.ac.uk/375102/.

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Here, a state-of-the-art model is developed that can predict both the evolution of an intense laser pulse propagating through a gas-filled fibre, and the extreme ultraviolet field that it generates. This model is first used to discover a new mechanism for compressing energetic laser pulses to few cycle durations within short gas-filled fibres at pressures where high-order harmonic generation is routinely performed. Next, the fibre design is optimised for enhanced phase-matching using the model. Once fabricated and integrated into the source characterisation apparatus, the conversion efficiency
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35

Mitchell, Robert Andrew III. "Understanding Femtosecond-Pulse Laser Damage through Fundamental Physics Simulations." The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1440411512.

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36

Austin, Drake Ross. "Semiconductor Surface Modification using Mid-Infrared, Femtosecond Laser Pulses." The Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu150324882632046.

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37

Centurion, Martin Psaltis Demetri. "Study of the nonlinear propagation of femtosecond laser pulses /." Diss., Pasadena, Calif. : California Institute of Technology, 2005. http://resolver.caltech.edu/CaltechETD:etd-05262005-174627.

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38

Wilson, Philip Trent. "Second harmonic generation spectroscopy using broad bandwidth femtosecond pulses /." Digital version accessible at:, 2000. http://wwwlib.umi.com/cr/utexas/main.

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39

Mlejnek, Michal 1965. "Intense femtosecond pulse interaction with transparent and absorbing medium." Diss., The University of Arizona, 1998. http://hdl.handle.net/10150/288895.

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The work reported in this dissertation represents an investigation into some aspects of resonant and nonresonant light-matter interaction as experienced by femtosecond optical pulses. We look at the role of plasma generation via multi-photon ionization in the arrest of the 2-D collapse of femtosecond pulses governed by the nonlinear Schrodinger equation. First we studied the exciting new area of anomalous long-distance propagation of femtosecond optical pulses in the atmosphere. Our simulations do not support the existence of a stable pulse propagating through the air, but rather a dynamical p
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40

Remy, Quentin. "Ultrafast spin dynamics and transport in magnetic metallic heterostructures." Electronic Thesis or Diss., Université de Lorraine, 2021. http://www.theses.fr/2021LORR0191.

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Le contrôle de l'aimantation, et donc du spin, aux échelles de temps ultra courtes, est un sujet d'importance fondamentale pour l'élaboration de systèmes qui peuvent stocker de l'information beaucoup plus rapidement. La possibilité d'écrire de l'information avec des pulses laser femtoseconde sur des métaux magnétiques tels que GdFeCo ou MnRuGa en quelques picosecondes fut une étape conséquente pour pouvoir réaliser ce progrès technologique. Cependant, le renversement de l'aimantation observé dans ces matériaux après les avoir irradié avec un unique pulse laser, appelé retournement tout optique
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41

Gil, Villalba Abel. "Single shot ablation of monolayer graphene by spatially shaped femtosecond laser pulses." Thesis, Bourgogne Franche-Comté, 2017. http://www.theses.fr/2017UBFCD028/document.

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Depuis sa découverte expérimentale en 2004, le graphène a émergé comme un matériau potentiel pour les technologies de nouvelle génération. Le graphène était le premier matériau 2D produit et l’intérêt et qu’il suscite provient de ses remarquables propriétés: il possède d’importants coefficients de mobilité électronique et de conductivité thermique, il est également le matériau le plus solide et léger connu. Pour permettre le développement d’applications à l’ échelle industrielle, des technologies de structuration à l’ échelle submicronique sont nécessaires.Cette thèse se concentre sur l’explor
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42

Ju, Heongkyu. "Photon-number squeezing of femtosecond optical pulses in nonlinear media." Thesis, University of Oxford, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.249632.

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43

Ueffing, Moritz [Verfasser], and Ferenc [Akademischer Betreuer] Krausz. "Direct amplification of femtosecond pulses / Moritz Ueffing ; Betreuer: Ferenc Krausz." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2018. http://d-nb.info/1159506523/34.

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44

Campbell, Stuart. "Advances in femtosecond pulse laser micromachining and index waveguide inscription." Thesis, Heriot-Watt University, 2007. http://hdl.handle.net/10399/67.

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45

Suresh, M. "Neutral and ionic atoms and molecules in femtosecond laser pulses." Thesis, Queen's University Belfast, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.421008.

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46

Gouveia, Neto Artur da Silva. "Femtosecond pulse generation and propagation in single-mode optical fibres." Thesis, Imperial College London, 1988. http://hdl.handle.net/10044/1/47085.

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47

Kauer, Matthias. "Ultrafast dynamics and propagation of femtosecond pulses in semiconductor lasers." Thesis, University of Cambridge, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.621970.

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48

McCracken, Richard A. "Femtosecond optical parametric oscillator frequency combs for coherent pulse synthesis." Thesis, Heriot-Watt University, 2013. http://hdl.handle.net/10399/2702.

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Coherent pulse synthesis takes as its objective the piecewise assembly of a sequence of identical broadband pulses from two or more mutually-coherent sequences of narrowband pulses. The requirements for pulse synthesis are that the parent pulses share the same repetition frequency, are phase coherent and have low mutual timing jitter over the required observation time. The work carried out in this thesis explored the requirements for broadband coherent pulse synthesis between the multiple visible outputs of a synchronously pumped femtosecond optical parametric oscillator. A femtosecond Ti:sapp
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49

Salzmann, Wenzel. "Photoassociation and coherent control of ultracold molecules by femtosecond pulses." [S.l. : s.n.], 2007.

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50

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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