Relevant bibliographies by topics / Ultrafast Laser pulses

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Ultrafast Laser pulses'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Ultrafast Laser pulses"

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Wei, Xianqi, Xiaoli Wang, Xin Li, and Weihua Liu. "Electronic Pulses from Pulsed Field Emission of CNT Cathodes." Journal of Nanomaterials 2018 (2018): 1–6. http://dx.doi.org/10.1155/2018/4396430.

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We presented a demonstration of infrared laser irradiated field emission electronic pulse based on carbon nanotube (CNT) cathodes. Electronic pulses greatly depended on pulsed infrared laser and were almost synchronous with laser pulses. We have designed a pulsed field emission cathode based on CNTs and investigated correlation between electronic pulse and laser pulse, acquiring the shortest width of electronic pulses about 50 ms and turn-on field less than 0.14 V/μm. Besides, we have studied the thermal effect on the pulsed field emission of CNT cathodes caused by laser heating. Interestingly, the thermal effect has caused an enhancement of emission current but resulted in a waveform distortion on short electronic pulses. The application of laser pulses on CNT cathodes would extend conventional electron sources to a pulsed electron source and offered a possibility of pulsed field emission. These results were encouraging us to prepare further studies of ultrafast electronic pulses for high-frequency electron sources.
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Wang, Hongjie, Dmitry Gaponov, Amélie Cabasse, Gilles Martel, Ammar Hideur, Jean-Louis Oudar, Leonid Kotov, Mikhail Likhachev, Denis Lipatov, and Sébastien Février. "1.55-μm wavelength ultrafast fiber oscillators and amplifiers." International Journal of Modern Physics B 28, no. 12 (April 7, 2014): 1442004. http://dx.doi.org/10.1142/s0217979214420041.

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In this paper, we review our recent developments on ultrafast pulse generation in erbium-doped fiber laser systems operating in the 1550 nm wavelength range. This work concerns the generation of ultrafast pulses from dissipative soliton fiber lasers featuring resonant saturable absorber mirrors, as well as their amplification in highly efficient erbium-doped large-mode-area fibers. Different amplification schemes featuring all-fiber components are studied leading to the achievement of record pulse energy from a high repetition rate laser system.
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Viana, Bruno, J. Petit, R. Gaumé, Philippe Goldner, F. Druon, F. Balembois, and P. Georges. "Crystal Chemistry Approach in Yb Doped Laser Materials." Materials Science Forum 494 (September 2005): 259–64. http://dx.doi.org/10.4028/www.scientific.net/msf.494.259.

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The emergence of new laser crystals has allowed progress in ultrashort-pulsed laser technology and high power lasers. Extensive researches on new Yb3+ doped crystals enable development of all-solid-state femtosecond lasers. Thermo-mechanical properties should be taken into account. The review of the state of the art on the Yb doped laser material for high power and ultrafast pulses generation is presented.
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Taft, Gregory J., Matthew T. Newby, Joel J. Hrebik, Marshall Onellion, Thomas F. George, Dániel Szentesi, Sándor Szatmári, and László Nánai. "Ultrafast dynamic reflectivity of vanadium pentoxide." Journal of Materials Research 23, no. 2 (February 2008): 308–11. http://dx.doi.org/10.1557/jmr.2008.0039.

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The ultrafast dynamic reflectivity of vanadium pentoxide is measured using 40 fs pulses from a self-mode-locked Ti:sapphire laser. The laser pulses excite acoustic vibrations at wave numbers of 145 and 103 cm−1. The amplitudes of the induced oscillations depend strongly on the orientation between the linear polarization of the laser pulses and the crystal axes, with the largest oscillations observed for an orientation of 45°. The higher-frequency oscillation is induced immediately upon arrival of the laser pulse, while the lower-frequency oscillation appears a few picoseconds later. The oscillations persist for approximately 10 ps after the arrival of the pulse. The oscillations are attributed to transverse acoustic modes propagating along the a-axis of the crystal.
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Sugioka, Koji. "Progress in ultrafast laser processing and future prospects." Nanophotonics 6, no. 2 (March 1, 2017): 393–413. http://dx.doi.org/10.1515/nanoph-2016-0004.

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AbstractThe unique characteristics of ultrafast lasers have rapidly revolutionized materials processing after their first demonstration in 1987. The ultrashort pulse width of the laser suppresses heat diffusion to the surroundings of the processed region, which minimizes the formation of a heat-affected zone and thereby enables ultrahigh precision micro- and nanofabrication of various materials. In addition, the extremely high peak intensity can induce nonlinear multiphoton absorption, which extends the diversity of materials that can be processed to transparent materials such as glass. Nonlinear multiphoton absorption enables three-dimensional (3D) micro- and nanofabrication by irradiation with tightly focused femtosecond laser pulses inside transparent materials. Thus, ultrafast lasers are currently widely used for both fundamental research and practical applications. This review presents progress in ultrafast laser processing, including micromachining, surface micro- and nanostructuring, nanoablation, and 3D and volume processing. Advanced technologies that promise to enhance the performance of ultrafast laser processing, such as hybrid additive and subtractive processing, and shaped beam processing are discussed. Commercial and industrial applications of ultrafast laser processing are also introduced. Finally, future prospects of the technology are given with a summary.
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Sotor, Jaroslaw, and Grzegorz Sobon. "Ultrafast lasers and their applications." Photonics Letters of Poland 8, no. 4 (December 31, 2016): 94. http://dx.doi.org/10.4302/plp.2016.4.01.

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The editors introduce the special issue on "Ultrafast lasers and their applications". It covers topics from ultrashort laser pulses generation using nanomaterials-based saturable absorbers to practical applications of such lasers in spectroscopy, supercontinuum generation and laser micromachining. The issue contains nine papers tightly focused on the main topic and two regular papers.
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Fan, C. H., J. Sun, and J. P. Longtin. "Plasma Absorption of Femtosecond Laser Pulses in Dielectrics." Journal of Heat Transfer 124, no. 2 (October 22, 2001): 275–83. http://dx.doi.org/10.1115/1.1445135.

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Dielectric (high bandgap) materials represent an important and diverse class of materials in micro and nanotechnology, including MEMS devices, biomedical and bioengineering systems, multilayer thin film coatings, fiber optics, etc. Micromachining dielectrics using ultrafast lasers is an exciting and promising new research area with many significant advantages, including precision material removal, negligible heating of the workpiece, micron and sub-micron-size feature fabrication, and high aspect ratio features. During ultrafast laser processing of dielectrics, the intense laser pulse ionizes the irradiated material and produces an optical breakdown region, or plasma, that is characterized by a high density of free electrons. These high-density electrons can efficiently absorb a large fraction of the laser irradiance energy, part of which will then be coupled into the bulk material, resulting in material removal through direct vaporization. The energy deposited into the material depends on the time and space-dependent breakdown region, the plasma rise time, and the plasma absorption coefficient. Higher coupling efficiency results in higher material removal rate; thus energy deposition is one of the most important issues for ultrafast laser materials processing, particularly for micron and sub-micron-scale laser materials processing. In the present work, a femtosecond breakdown model is developed to investigate energy deposition during ultrafast laser material interactions. One substantial contribution of the current work is that pulse propagation effects have been taken into account, which have been shown to become significant for pulse durations less than 10 ps. By accounting for the pulse propagation, the time and space-resolved plasma evolution can be characterized and used to determine the energy deposition through plasma absorption. With knowledge of the plasma absorption, changes in the pulse profile as it propagates in the focal region can be determined as well. Absorption of the laser pulse by plasma in water is compared with experimental data to validate the model, as water is a well characterized dielectric. The model, however, is also applicable to other transparent or moderately absorbing solid and liquid dielectric media during ultrafast laser-materials interactions.
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Ren, Zhong, and Xiaojing Yang. "Angular-split/temporal-delay approach to ultrafast protein dynamics at XFELs." Acta Crystallographica Section D Structural Biology 72, no. 7 (June 23, 2016): 871–82. http://dx.doi.org/10.1107/s2059798316008573.

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X-ray crystallography promises direct insights into electron-density changes that lead to and arise from structural changes such as electron and proton transfer and the formation, rupture and isomerization of chemical bonds. The ultrashort pulses of hard X-rays produced by free-electron lasers present an exciting opportunity for capturing ultrafast structural events in biological macromolecules within femtoseconds after photoexcitation. However, shot-to-shot fluctuations, which are inherent to the very process of self-amplified spontaneous emission (SASE) that generates the ultrashort X-ray pulses, are a major source of noise that may conceal signals from structural changes. Here, a new approach is proposed to angularly split a single SASE pulse and to produce a temporal delay of picoseconds between the split pulses. These split pulses will allow the probing of two distinct states before and after photoexcitation triggered by a laser pulse between the split X-ray pulses. The split pulses originate from a single SASE pulse and share many common properties; thus, noise arising from shot-to-shot fluctuations is self-canceling. The unambiguous interpretation of ultrafast structural changes would require diffraction data at atomic resolution, as these changes may or may not involve any atomic displacement. This approach, in combination with the strategy of serial crystallography, offers a solution to study ultrafast dynamics of light-initiated biochemical reactions or biological processes at atomic resolution.
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Edziah, Raymond. "Cost Effective Profiling of Neodymium-Doped Vanadate Laser Pulses." Applied Physics Research 10, no. 2 (March 31, 2018): 39. http://dx.doi.org/10.5539/apr.v10n2p39.

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As environmental conditions and component degradation and failure are known to affect the performance of ultrafast lasers, it is important to monitor their state in any nonlinear optical study. This may be achieved by measuring the temporal width of the laser pulses using an autocorrelator. In this work, an autocorrelator for measuring the pulsewidth of mode-locked lasers was custom-built using pieces of equipment usually found in a typical ultrafast optics laboratory. The assembled equipment was tested using SESAM (Saturable Semiconductor Absorber Mirror) mode-locked neodymium-doped vanadate (Nd:YVO4) laser having manufacturer specified average output power of 1.6 W and 10 ps pulsewidth. Using the background-free autocorrelation technique, the pulse width of the laser was measured to be 10.4 ps. This type of autocorrelator is cost effective and may be handy in situations where research funds are limited; a scenario commonly experienced in research laboratories of developing countries. Additionally, the processes involved in assembling the autocorrelator provide a useful learning experience for new researchers. The study also outlined the processes involved in modifying an existing autocorrelation setup in order to measure laser beam spot size; a useful parameter in nonlinear optical studies.
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Garasz, Katarzyna, and Marek Kocik. "Experimental Investigations on Laser Ablation of Aluminum in Sub-Picosecond Regimes." Applied Sciences 10, no. 24 (December 12, 2020): 8883. http://dx.doi.org/10.3390/app10248883.

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Due to high power and ultrashort pulses, femtosecond lasers excel at (but are not limited to) processing materials whose thicknesses are less than 500 microns. Numerous experiments and theoretical analyses testify to the fact that there are solid grounds for the applications of ultrafast laser micromachining. However, with high costs and complexity of these devices, a sub-picosecond laser that might be an alternative when it comes to various micromachining applications, such as patterns and masks in thin metal foils, micro-nozzles, thermo-detectors, MEMS (micro electro-mechanical systems), sensors, etc. Furthermore, the investigation of sub-picosecond laser interactions with matter could provide more knowledge on the ablation mechanisms and experimental verification of existing models for ultrashort pulse regimes. In this article, we present the research on sub-picosecond laser interactions with thin aluminum foil under various laser pulse parameters. Research was conducted with two types of ultrafast lasers: a prototype sub-picosecond Yb:KYW laser (650 fs) and a commercially available femtosecond Ti:S laser (35 fs). The results show how the variables such as pulse width, energy, frequency, wavelength and irradiation time affect the micromachining process.
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Dissertations / Theses on the topic "Ultrafast Laser pulses"

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Ablikim, Utuq. "Fragmentation of molecular ions in ultrafast laser pulses." Kansas State University, 2015. http://hdl.handle.net/2097/18962.

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Master of Science
Department of Physics
Itzhak Ben-Itzhak
Imaging the interaction of molecular ion beams with ultrafast intense laser fields is a very powerful method to understand the fragmentation dynamics of molecules. Femtosecond laser pulses with different wavelengths and intensities are applied to dissociate and ionize molecular ions, and each resulting fragmentation channel can be studied separately by implementing a coincidence three-dimensional (3D) momentum imaging method. The work presented in this master’s report can be separated into two parts. First, the interaction between molecular ion beams and femtosecond laser pulses, in particular, the dissociation of CO[superscript]+ into C[superscript]++O, is studied. For that purpose, measurements are conducted at different laser intensities and wavelengths to investigate the possible pathways of dissociation into C[superscript]++O. The study reveals that CO[superscript]+ starts to dissociate from the quartet electronic state at low laser intensities. Higher laser intensity measurements, in which a larger number of photons can be absorbed by the molecule, show that the doublet electronic states with deeper potential wells, e.g. A [superscript]2Π, contribute to the dissociation of the molecule. In addition, the three-body fragmentation of CO[subscript]2[superscript]+ into C[superscript]++O[superscript]++O[superscript]+ is studied, and two breakup scenarios are separated using the angle between the sum and difference of the momentum vectors of two O[superscript]+ fragments. In the second part, improvements in experimental techniques are discussed. Development of a reflective telescope setup intended to increase the conversion efficiency of ultraviolet (UV) laser pulse generation is described, and the setup is used in the studies of CO[superscript]+ dissociation described in this report. The other technical study presented here is the measurement of the position dependence of timing signals picked off of a microchannel plate (MCP) surface. The experimental method is presented and significant time spread over the surface of the MCP detector is reported [1].
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Akturk, Selcuk. "Extending ultrashort-laser-pulse measurement techniques to new dimensions, time scales, and frequencies." Diss., Georgia Institute of Technology, 2005. http://hdl.handle.net/1853/6892.

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In the last decade, there has been tremendous progress in the field of ultrashort-pulse measurement. However, this effort has focused mostly on the temporal behavior of 100-fs, 800-nm ultrashort pulse, ignoring other pulse lengths, wavelengths, and the very common space-time couplings or so called spatio-temporal distortions. In this thesis work, I do an extensive study of spatio-temporal distortions and their measurement using Frequency Resolved Optical Gating (FROG) and its relatives. I clarify some ambiguities in the descriptions of these effects in the existing theory and establish a more general description of such distortions in ultrashort pulses. I also extend these measurement techniques to different wavelengths and pulse lengths. Specifically, I develop measurement devices for few-cycle NIR pulses, weak and narrowband fiber laser pulses, long (several-ps) NIR pulses, and visible pulses from NOPAs.
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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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Lee, Dongjoo. "Ultra-broadband phase-matching ultrashort-laser-pulse measurement techniques." Diss., Available online, Georgia Institute of Technology, 2007, 2007. http://etd.gatech.edu/theses/available/etd-07032007-113912/.

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Thesis (Ph. D.)--Physics, Georgia Institute of Technology, 2008.
First, Phillip, Committee Member ; Adibi, Ali, Committee Member ; Raman, Chandra, Committee Member ; Buck, John, Committee Member ; Trebino, Rick, Committee Chair.
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Macpherson, James. "Characterisation and Optimization of Ultrashort Laser Pulses." Thesis, University of Waterloo, 2003. http://hdl.handle.net/10012/1237.

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The ultrafast optical regime is defined, as it applies to laser pulses, along with a brief introduction to pulse generation and characterisation technologies. A more extensive description of our particular amplified pulse generation and SPIDER characterisation systems follows. Data verifying the correct operation of the characterisation system is presented and interpreted. Our laser system is then characterised in two different configurations. In each case, the data describing the system is presented and analyzed. Conclusions are made regarding the performance of both the characterisation and laser systems, along with suggested improvements for each.
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Al-Jarah, Uday Ali Sabeeh. "Modification and monitoring of magnetic properties with ultrafast laser pulses." Thesis, University of Exeter, 2013. http://hdl.handle.net/10871/9252.

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Investigations of the static and dynamic electronic, optical and acoustic properties of different nanostructures are presented. Magneto-optical Kerr effect (MOKE) magnetometry has been used to probe the magnetic properties of the magnetic nanostructures. A time-resolved all-optical pump-probe technique, using femtosecond laser pulses, has been employed to investigate the ultrafast magnetisation dynamics, and transient polarisation and reflectivity responses. The magnetic samples studied were permalloy (NiFe) nanowire arrays and multilayered CoNi/Pt films and nanodot arrays, while the non-magnetic samples were phase change GeSbTe thin films. These structures have attracted much attention because their properties can be advantageous in data storage applications. Static MOKE measurements of the NiFe nanowires revealed zero coercivity and remanence, regardless of the direction of the applied magnetic field, with the magnetic easy axis perpendicular to the axis of the nanowire. This is the result of antiferromagnetic alignment of the magnetization in adjacent nanowires at remanence. Time-resolved MOKE (TRMOKE) measurements performed upon the nanowires showed increasing demagnetisation with increasing pump fluence, with a larger response being observed when the magnetic field was applied perpendicular to the nanowire axis. This behaviour, together is believed to result from the formation of vortices at the end of the nanowires. Moreover, the TRMOKE response revealed oscillations due to modes of magnetic precession with frequencies that have minima at a field rather close to the saturation field of the samples. For lower fields, the frequencies decrease with increasing applied field, while for higher fields, they increase with increasing applied field. This behaviour is believed to result from the strong dipolar interactions that can overwhelm the shape anisotropy of an individual nanowire leading to a switching of the easy axis from parallel to perpendicular to the nanowire axis. The magnetisation may also break up into domains for field values less than the saturation value, which results in a decrease in the dipolar coupling with decreasing applied field. Static MOKE measurements of the CoNi/Pt multilayers showed that the saturation Kerr rotation increases with increasing packing density of the sample, while the coercive field decreases after patterning, but increases with decreasing diameter among the patterned samples. AC-MOKE measurements revealed that increasing pump fluence leads to decreasing coercivity and increasing demagnetisation, which is attributed to the increased heating of the surface of the dots and, thus, an increased temperature. Full demagnetisation and total loss of coercivity were achieved for all the nanodot arrays. The AC-MOKE results are in good agreement with the results of TRMOKE measurements. Transient polarisation measurements showed a clear specular-optical Kerr effect (SOKE) response for all the samples. This response appears as a peak at the zero delay position that has maximum (zero) effect when the pump and probe electric fields lie 450 (00 or 900) apart, and is accompanied by longer-lived damped oscillatory modes for the nanowires and nanodot arrays. A mechanism involving the optically induced electric polarisation of the nanodots and nanowires has been suggested to explain this response. Moreover, an epitaxial GeSbTe film revealed a robust dependence of the transient polarisation upon the sample orientation which suggests a strong influence of the crystallographic structure for this sample. The time-resolved reflectivity (TRR) measurements for the nanowire and nanodot arrays revealed a linear dependence of the amplitude of the transient reflectivity upon the pump fluence. A number of oscillatory modes with different GHz frequencies were observed to be superimposed upon an exponentially relaxing background, while a single mode was observed in the CoNi/Pt continuous film. These oscillations are believed to result from the excitation of surface acoustic waves (SAW). Two principal mechanisms have been suggested to explain the excitation of SAWs within the nanodot arrays. A discrepancy between the experimental and frequencies predicted by an existing model was found which is believed to be due to the neglect of the sample composition and the SAW velocity of the nanostructures within this model. The development of a model that overcomes these weaknesses is suggested for future work. An additional THz frequency mode was observed within the GeSbTe which is believed to arise from the excitation of optical and acoustic phonon modes. Further work is required to identify the observed phonon modes and to relate the associated optically induced linear birefringence to a specific structural distortion.
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Manescu, Corneliu. "Controlling and probing atoms and molecules with ultrafast laser pulses." [Gainesville, Fla.] : University of Florida, 2004. http://purl.fcla.edu/fcla/etd/UFE0004411.

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Wong, Tsz Chun. "Single-shot measurements of complex pulses using frequency-resolved optical gating." Diss., Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/50335.

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Frequency-resolved optical gating (FROG) is the standard for measuring femtosecond laser pulses. It measures relatively simple pulses on a single-shot and complex pulses using multi-shot scanning and averaging. However, experience from intensity autocorrelation suggests that multi-shot measurements may suffer from a coherent artifact caused by instability in the laser source. In this thesis, the coherent artifacts present in modern pulse measurement techniques are examined and single-shot techniques for measuring complex pulse(s) are proposed and demonstrated. The study of the coherent artifact in this work shows that modern pulse measurement techniques also suffer from coherent artifacts and therefore single-shot measurements should be performed when possible. Here, two single-shot experimental setups are developed for different scenarios. First, an extension of FROG is developed to measure two unknown pulses simultaneously on a single-shot. This setup can measure pulses that have very different center wavelengths, spectral bandwidths, and complexities. Second, pulse-front tilt is incorporated to extend the temporal range of single-shot FROG to tens of picoseconds which traditionally can only be attained by multi-shot scanning. Finally, the pulse-front tilt setup is modified to perform a single-shot measurement of supercontinuum, one of the most difficult pulses to measure due to its long temporal range, broad spectral bandwidth, and low pulse energy.
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Cortelli, Giorgio. "Ultrafast electron diffraction on materials exposed to intense free electron laser pulses." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/19305/.

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The advent of Free Electron Lasers (FELs) has opened unprecedented opportunities for the study of transient states of matter. The use of the seeding technique, developed at the FERMI FEL in Trieste (Italy), pushed further the frontier allowing to perform pump-probe experiments with femtosecond time resolution. FELs permit shedding light onto unexplored non-equilibrium dynamics and processes in matter. In this thesis, a pioneering setup for monitoring sub-picosecond atomic structure changes in materials is described. The FEL is used as an isochoric pump while a 100 keV compressed electron bunch is used as a structural probe thus obtaining an ultrafast electron diffraction (UED) facility. Results of a pilot UED experiment on selected samples (gold and diamond) are presented and analysed.
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Barbieri, Nicholas. "Engineering and Application of Ultrafast Laser Pulses and Filamentation in Air." Doctoral diss., University of Central Florida, 2013. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/5602.

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Continuing advances in laser and photonic technology has seen the development of lasers with increasing power and increasingly short pulsewidths, which have become available over an increasing range of wavelengths. As the availability of laser sources grow, so do their applications. To make better use of this improving technology, understanding and controlling laser propagation in free space is critical, as is understanding the interaction between laser light and matter. The need to better control the light obtained from increasingly advanced laser sources leads to the emergence of beam engineering, the systematic understanding and control of light through refractive media and free space. Beam engineering enables control over the beam shape, energy and spectral composition during propagation, which can be achieved through a variety of means. In this dissertation, several methods of beam engineering are investigated. These methods enable improved control over the shape and propagation of laser light. Laser-matter interaction is also investigated, as it provides both a means to control the propagation of pulsed laser light through the atmosphere, and provides a means to generation remote sources of radiation.
Ph.D.
Doctorate
Physics
Sciences
Physics
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Books on the topic "Ultrafast Laser pulses"

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Ultrafast optics. Hoboken, N.J: Wiley, 2009.

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Dimitrios, Charalambidis, Normand Didier, and SpringerLink (Online service), eds. Progress in Ultrafast Intense Laser Science VII. Berlin, Heidelberg: Springer-Verlag Berlin Heidelberg, 2011.

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Vasilʹev, Peter. Ultrafast diode lasers: Fundamentals and applications. Boston: Artech House, 1995.

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Fermann, Martin E., Almantas Galvanauskas, and Gregg Sucha. Ultrafast lasers: Technology and applications. New York: Marcel Dekker, 2003.

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Fleming, Graham R. Chemical applications of ultrafast spectroscopy. New York: Oxford University Press, 1986.

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Chemical applications of ultrafast spectroscopy. New York: Oxford University Press, 1986.

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Silvestri, Sandro De, Orazio Svelto, and G. Denardo. Ultrafast processes in spectroscopy. New York: Springer, 1996.

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(Firm), Lucent Technologies, ed. Ultrafast spectroscopy of semiconductors and semiconductor nanostructures. 2nd ed. Berlin: Springer Verlag, 1999.

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Shah, J. Ultrafast spectroscopy of semiconductors and semiconductor nanostructures. Berlin: Springer, 1996.

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Gambarota, Giulio, and Baldassare Di Bartolo. Ultrafast dynamics of quantum systems: Physical processes and spectroscopic techniques. Edited by ebrary Inc. New York: Kluwer Academic, 2002.

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Book chapters on the topic "Ultrafast Laser pulses"

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Szabó, G., Z. Bor, and A. Müller. "A Phase Sensitive Single Pulse Autocorrelator for Ultrashort Laser Pulses." In Ultrafast Phenomena VI, 146–48. Berlin, Heidelberg: Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-642-83644-2_42.

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Warren, Warren S., Dan Fu, Tong Ye, Henry Liu, and Martin C. Fischer. "Tissue imaging with shaped femtosecond laser pulses." In Ultrafast Phenomena XV, 807–9. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-68781-8_257.

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Esarey, E., P. Sprangle, J. Krall, and G. Joyce. "Propagation of Intense Laser Pulses in Plasmas." In Ultrafast Phenomena VIII, 290–92. Berlin, Heidelberg: Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-642-84910-7_88.

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Ledingham, Ken W. D. "Applications of Ultra-Intense, Short Laser Pulses." In Ultrafast Nonlinear Optics, 227–49. Heidelberg: Springer International Publishing, 2013. http://dx.doi.org/10.1007/978-3-319-00017-6_10.

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Pommeret, S., F. Gobert, M. Mostafavi, I. Lampre, P. Pernot, R. Haïdar, S. Buguet, G. Vigneron, and J. C. Mialocq. "Interaction of terawatt laser pulses with neat water." In Ultrafast Phenomena XII, 536–38. Berlin, Heidelberg: Springer Berlin Heidelberg, 2001. http://dx.doi.org/10.1007/978-3-642-56546-5_157.

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Morak, Andreas, Ingo Uschmann, Thomas Feurer, Eckhart Förster, and Roland Sauerbrey. "Femtosecond Si-Kα pulses from laser produced plasmas." In Ultrafast Phenomena XIII, 45–47. Berlin, Heidelberg: Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-642-59319-2_13.

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Korte, F., J. Koch, S. Nolte, C. Fallnich, and B. N. Chichkov. "Nanostructuring of transparent materials with femtosecond laser pulses." In Ultrafast Phenomena XIII, 666–68. Berlin, Heidelberg: Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-642-59319-2_205.

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Matsuoka, M., Y. Miyamoto, T. Kuga, M. Baba, and Y. Li. "Two-Photon Interference Measurement of Ultrafast Laser Pulses." In Ultrafast Phenomena VIII, 140–41. Berlin, Heidelberg: Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-642-84910-7_37.

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Erdélyi, Miklós, Attila P. Kovács, Katalin Mecseki, and Gábor Szabó. "Control of Third-Order Dispersion of Ultrashort Laser Pulses." In Ultrafast Phenomena XV, 211–13. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-68781-8_68.

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Vinogradov, A. V., and J. Janszky. "Squeezing of the Molecular Vibrations by Femtosecond Laser Pulses." In Ultrafast Phenomena VIII, 95–96. Berlin, Heidelberg: Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-642-84910-7_24.

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Conference papers on the topic "Ultrafast Laser pulses"

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Huang, Jing, Yuwen Zhang, J. K. Chen, and Mo Yang. "Modeling of Ultrafast Phase Change Processes in a Thin Metal Film Irradiated by Femtosecond Laser Pulse Trains." In ASME 2009 International Mechanical Engineering Congress and Exposition. ASMEDC, 2009. http://dx.doi.org/10.1115/imece2009-12342.

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Ultrashort laser pulses can be generated in the form of a pulse train. In this paper, the ultrafast phase change processes of a 1-μm free-standing gold film irradiated by femtosecond laser pulse trains are simulated numerically. A two-temperature model coupled with interface tracking method is developed to describe the ultrafast melting, vaporization and resolidification processes. To deal with the large span in time scale, variable time steps are adopted. A laser pulse train consists of several pulse bursts with a repetition rate of 0.5∼1 MHz. Each pulse burst contains 3∼10 pulses with an interval of 50 ps ∼ 10 ns. The simulation results show that with such a configuration, to achieve the same melting depth, the maximum temperature in the film decreases significantly in comparison to that of a single pulse. Although the total energy depositing on the film will be lifted, more energy will be transferred into the deeper part, instead of accumulating in the sub-surface layer. This leads to lower temperature and temperature gradient, which is favorable in laser sintering and laser machining.
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Salter, Patrick. "Diamond Functionalization by Ultrafast Laser Pulses." In 2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC). IEEE, 2019. http://dx.doi.org/10.1109/cleoe-eqec.2019.8873272.

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Lubatschowski, Holger, Alexander Heisterkamp, Fabian Will, Jesper Serbin, Thorsten Bauer, Carsten Fallnich, Herbert Welling, et al. "Ultrafast laser pulses for medical applications." In High-Power Lasers and Applications, edited by Glenn S. Edwards, Joseph Neev, Andreas Ostendorf, and John C. Sutherland. SPIE, 2002. http://dx.doi.org/10.1117/12.461386.

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Trofimov, Vyacheslav A., Pavel S. Sidorov, and Maria Loginova. "Formation of sub-femtosecond sub-pulses at THG of femtosecond laser pulse." In Ultrafast Phenomena and Nanophotonics XXII, edited by Markus Betz and Abdulhakem Y. Elezzabi. SPIE, 2018. http://dx.doi.org/10.1117/12.2293179.

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Cheng, Changrui, Xianfan Xu, Yaguo Wang, and Alejandro Strachan. "Molecular Dynamics Simulation of Ultrafast Laser Ablation of Fused Silica." In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-13768.

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In recent decades, ultrafast lasers have been used successfully to micro-machine fused silica. The high intensity laser pulses first excite valence electrons to the conduction band via photoionization and avalanche ionization. The excited free electrons absorb laser energy, and transfer its energy to the ions, resulting in the temperature rise. This ionization leads to significant changes in Coulomb forces among the atoms. Both thermal and non-thermal (Coulomb explosion) ablation processes have been discussed in the literature [1]. This work applies molecular dynamics technique to study the interaction between ultrafast laser pulses and fused silica and the resulting ablation. The main goal of this work is to investigate the ultrafast laser ablation process of fused silica, and to reveal the mechanisms leading to the material's removal. In this MD simulation, the equilibrium state of fused silica is first established at 300 K, and the laser heating and material removal processes are simulated. The ionization of the material and the energy coupling between the laser beam and free electrons and ions are considered. Thermal and non-thermal mechanisms of fused silica ablation are discussed based on calculation results.
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Warren, W. S., T. Ye, M. Fischer, G. Yurtsever, C. Li, H. Liu, and D. Fu. "Deep tissue imaging with shaped femtosecond laser pulses." In International Conference on Ultrafast Phenomena. Washington, D.C.: OSA, 2006. http://dx.doi.org/10.1364/up.2006.thc1.

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Pommeret, S., F. Gobert, R. Haïdar, S. Buguet, G. Vigneron, J. C. Mialocq, M. Mostafavi, I. Lampre, and P. Pernot. "Interaction of terawatt laser pulses with neat water." In International Conference on Ultrafast Phenomena. Washington, D.C.: OSA, 2000. http://dx.doi.org/10.1364/up.2000.tuf53.

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Morak, A., I. Uschmann, T. Feurer, E. Förster, and R. Sauerbrey. "Femtosecond Si-Kα pulses from laser produced plasmas." In International Conference on Ultrafast Phenomena. Washington, D.C.: OSA, 2002. http://dx.doi.org/10.1364/up.2002.mb5.

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Korte, F., S. Nolte, C. Fallnich, and B. N. Chichkov. "Nanostructuring of transparent materials with femtosecond laser pulses." In International Conference on Ultrafast Phenomena. Washington, D.C.: OSA, 2002. http://dx.doi.org/10.1364/up.2002.tha3.

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April, Alexandre. "Tightly focused, ultrafast TM 01 laser pulses." In Photonics North 2009, edited by Réal Vallée. SPIE, 2009. http://dx.doi.org/10.1117/12.838383.

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Reports on the topic "Ultrafast Laser pulses"

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Fiedler, Curtis J. The Interferometric Detection of Ultrafast Pulses of Laser Generated Ultrasound. Fort Belvoir, VA: Defense Technical Information Center, April 1996. http://dx.doi.org/10.21236/ada312079.

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Greenfield, S. R., D. J. Gosztola, and M. R. Wasielewski. Molecular systems for ultrafast optical switching: Controlling electron transfer reactions with femtosecond laser pulses. Office of Scientific and Technical Information (OSTI), April 1994. http://dx.doi.org/10.2172/10141178.

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Heinz, Tony F. An Apparatus with Femtosecond Time Resolution and Atomic Spatial Resolution for the Study of Surface Processes Induced by High Intensity Ultrafast Laser Pulses. Fort Belvoir, VA: Defense Technical Information Center, January 1998. http://dx.doi.org/10.21236/ada348521.

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Kaertner, F. X., and D. Kielpinski. Laser Cooling With Ultrafast Pulse Trains. Fort Belvoir, VA: Defense Technical Information Center, September 2005. http://dx.doi.org/10.21236/ada442315.

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Kielpinski, David. Laser Cooling with Ultrafast Pulse Trains. Fort Belvoir, VA: Defense Technical Information Center, July 2010. http://dx.doi.org/10.21236/ada524694.

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Kielpinski, David. Laser Cooling with Ultrafast Pulse Trains. Fort Belvoir, VA: Defense Technical Information Center, August 2011. http://dx.doi.org/10.21236/ada547504.

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Peter Pronko. Isotopically Enriched Films and Nanostructures by Ultrafast Pulsed Laser Deposition. Office of Scientific and Technical Information (OSTI), December 2004. http://dx.doi.org/10.2172/835030.

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Alessi, D. High-Average-Power Diffraction Pulse-Compression Gratings Enabling Next-Generation Ultrafast Laser Systems. Office of Scientific and Technical Information (OSTI), November 2016. http://dx.doi.org/10.2172/1333397.

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Lau, K. Y. Intrinsic, P-Doped and Modulation-Doped Quantum Well Lasers for Ultrafast Modulation and Ultrashort Pulses. Fort Belvoir, VA: Defense Technical Information Center, February 1992. http://dx.doi.org/10.21236/ada251777.

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