ultrashort pulses
Investigate the Characteristics of Ultrashort Pulses in OCDMA System
... of ultrashort pulses and their applications in communication ...using ultrashort pulses with the help of OPTSIM ...by ultrashort pulses and also to examine the temporal and ...
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Versatile high resolution dispersion measurements in semiconductor photonic nanostructures using ultrashort pulses
... The polarisation dependence of refractive index in a birefringent crystal can be used to compensate for material dispersion. By polarising the high frequency light (which sees a higher material η(ω)) such that it ...
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Ultrafast non linear optics for telecommunication applications
... of ultrashort laser pulse and temporal soliton they can create in fibre can be pursued using the Titanium-Sapphire laser and optical parametric amplifier as a source of ultrashort pulses at ...
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Optical micromanipulation using dispersion compensated and phase shaped ultrashort pulsed lasers
... sending ultrashort laser pulses through high-NA microscope sys- tems, as well as a few approaches for managing ...compressing pulses below about 30fs FWHM pulse ...compress pulses, both alone ...
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Effects of ultrashort laser pulses on angular distributions of photoionization spectra
... with ultrashort pulses, especially, the emphasis on polarization effects, which are being investigated in the generation of attosecond pulse 44, 45 and bright table-top ...
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Ablation and optical third-order nonlinearities in Ag nanoparticles
... intensity ultrashort pulses (picosecond and femto- second), the nonlinear absorption and refraction can have important and even dominant contributions in the change of the mechanism of ablation and in the ...
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Ultrashort-pulse laser with an intracavity phase shaping element
... with ultrashort pulses at high peak ...in pulses that may be frequency chirped and / or stretched in ...generate ultrashort pulses having user-defined phase characteristics usually ...
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Generation and nonlinear propagation of ultrashort near infrared laser pulses
... Ultrashort pulses in the near infrared (NIR) spectral region (roughly 800 nra to 5 pm) have become of major importance in many areas of physics, chemistry and ...Such pulses are used in the study of ...
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Optical micromanipulation using ultrashort pulsed laser sources
... of pulses to result in a smaller volume of excitation, deeper penetration into tissue with a reduction in photo-bleaching and ...techniques, ultrashort pulses are fundamental in providing higher ...
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Polarization dependence of bulk ion acceleration from ultrathin foils irradiated by high intensity, ultrashort laser pulses
... CP pulses, although at lower ion energies than that observed in LP ...employing ultrashort pulses, a polarization-dependent enhancement in ion acceleration efficiency was induced by laser pulse ...
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Solitary Nanostructures Produced by Ultrashort Laser Pulse
... Production of solitary surface nanostructures by the ultra- short laser pulses is used in many applications listed in the “Background” section. Productive process is mainly governed by the interplay between ...
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Lilienfein, Nikolai (2018): Advanced control of ultrashort and high-power pulses in enhancement cavities. Dissertation, LMU München: Fakultät für Physik
... 250-fs pulses cen- tered at 1040 nm with a repetition rate of 250 MHz and up to 420 W of average ...The pulses were stretched to about ten picoseconds for the experiments to exclude nonlinear ...
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Evaluation of glass welding by ultrashort pulse laser
... Keywords: Ultra-short pulse laser, borosilicate glass, fused silica, molten zones, heat effected zone HAZ, fusion welding, feed rate, polarization, pulse repetition rate.... Materials an[r] ...
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Habel, Florian (2017): Advanced dispersive mirrors for ultrashort laser pulses from the near-UV to the mid-IR spectral range. Dissertation, LMU München: Fakultät für Physik
... optical pulses in the few cycle regime relies on the precise compensation of dispersion introduced by material-dispersion and self-phase-modulation [7, ...a ultrashort laser pulses, which consists of ...
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Kirchner, Friedrich (2013): Ultrashort and coherent single-electron pulses for diffraction at ultimate resolutions. Dissertation, LMU München: Fakultät für Physik
... As detailed in [148], we expect the electrons forming our pulses to have a temporal coherence greater than approximately 2 fs. Since this time is comparable to the duration of a laser cycle there are several ...
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Generation of Ultrahigh Speed, Ultrashort Flat-Top Picosecond Electrical Pulses by Laser Pulse Shaping and Ultrafast Electro-Optics Sampling
... input pulses. Although sub-pulses are divided with equal intensity, modulation is clearly observed, due to the phase interference among ...shaping pulses would be the best choice to ensure that the ...
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Lindner, Fabrizio (2004): Atoms in intense ultrashort laser pulses and the absolute phase. Dissertation, LMU München: Fakultät für Physik
... While this approach is very reliable in locking the phase φ, its value is not known and it is extremely sen- sitive to experimental parameters. Consequently, if the phase lock is lost it is not possible to lock to the ...
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Hornung, Thomas (2002): Optimal control with ultrashort laser pulses: Theory and experiment. Dissertation, LMU München: Fakultät für Physik
... In the first part we have seen that the experimental method to obtain optimized pulses for some aim is to use a learning-loop approach. This ap- proach could also be implemented by a direct mapping of all the ...
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Collision of Nonlinear Envelope Pulses Developed in Composite Right- and Left-Handed Transmission Lines Periodically Loaded with Schottky Varactors
... We consider composite right- and left-handed (CRLH) transmis- sion lines [4]. Several interesting managements of dispersive proper- ties of propagating waves have been investigated [5, 6]. A CRLH line also receives ...
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Search | Preprints
... dispersive medium) of chirped rectangular pulses, which can converge to extremely narrow pulses; analytical 663. approximation for the evolution of Super-Gaussian pulses in disp[r] ...
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