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Characterization of Ultrashort Optical Pulses in the Few-Cycle Regime Using Spectral Phase Interferometry for Direct Electric-Field Reconstruction
Interferometry provides a very sensitive and accurate means to measure the phase of an optical field. It has been applied with great effect in the...
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The generalized kinetics model for the description of the photoprocesses induced by ultrashort laser pulses
To explain the dynamics of the population of a quantum system excited by an ultrashort laser pulse, the generalized kinetic model is proposed and...
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Novel dispersive soliton solutions to a fractional nonlinear Schrödinger equation related with ultrashort pulses
In this study, the third-order fractional nonlinear Schrödinger equation (3-FNLS), which is crucial in fibre optics, is discussed. The equation...
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Experimental Implementation of the Method of Generation of a Sequence of Ultrashort Gigawatt Cherenkov Superradiance Pulses with a Nanosecond Repetition Period
A periodic sequence of ultrashort superradiance pulses during the current pulse of an electron beam with a duration of about 40 ns has been generated...
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Optimized online filter stack spectrometer for ultrashort X-ray pulses
Currently, with the advent of high-repetition-rate laser-plasma experiments, the demand for online diagnosis for the X-ray spectrum is increasing...
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Diagnostics of Nanosystems with the Use of Ultrashort X-Ray Pulses: Theory and Experiment (Brief Review)
X-ray diffraction analysis is one of the famous widely used methods to study the structure of matter. It is well known that the scattering of...
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Relation between Birefringence Parameters and the Hierarchical Spatial Structure of Microtracks Induced in the Bulk of Fused Silica by Ultrashort Laser Pulses
In this paper, we study changes in the phase shift and length, as well as the spatial structure of birefringent microtracks induced in the bulk of...
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Shock Compression of Molybdenum under Impact of Ultrashort Laser Pulses
AbstractThe behavior of molybdenum under the action of load pulses of picosecond duration is studied in an experiment. Using the method of spectral...
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Ultrashort Pulse Thin-Disk Lasers and Amplifiers
This Chapter deals with the generation and the amplification of ultrashort pulses in mode-locked oscillators and multipass amplifiers based on the...
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Few-Cycle Pulses Directly from a Laser
Advances in ultrashort-pulse laser technology have led to the generation of few-cycle optical pulses directly from oscillators at high repetition...
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Development of a Generator of a Periodic Sequence of Ultrashort 8-mm Electromagnetic Pulses Based on the “Saturn” Accelerator with Two Coaxial Emitting and Absorbing Electron Beams
We analyze theoretically and model a generator of a periodic sequence of ultrashort microwave pulses in a scheme with two coaxial cylindrical...
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Stable Ultrashort Pulse Generation Using a Coiled and Tapered Few-Mode-Fiber Polarization Controller as a Saturable Absorber
We present a coiled and tapered graded-index few-mode-fiber (FMF) polarization controller (PC) as a saturable absorber (SA) in an all-fiber laser. We...
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Broadband and High-Power Sub-terahertz Gyro-TWTs and Ultrashort Electromagnetic Pulse Generation
In this paper, a short demonstration about the recent progress of our high-power broadband gyrotron travelling wave tube (gyro-TWT) amplifiers in the...
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Laser-Induced Luminescent Centers in Diamond: Influence of Exposure and Duration of Short Laser Pulses
AbstractThe optical properties of point luminescent centers formed in the volume IaA-type natural diamond under the action of ultrashort laser pulses...
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Tailoring the surface morphology of Ni at the nanometric scale by ultrashort laser pulses
Ultrafast-laser irradiated surfaces are self-organizing systems that form intricated micropatterns and nanopatterns. Different shapes of randomly and...
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Transformations of the Spectrum of an Optical Phonon Excited in Raman Scattering in the Bulk of Diamond by Ultrashort Laser Pulses with a Variable Duration
A spontaneous Raman signal at the frequency of the triply degenerate optical phonon of diamond is observed in the photoluminescence spectrum under...
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Comparison of the Sensitivity of Spectral Methods for Multi-Element Analysis of Atmospheric Aerosol Using Short and Ultrashort Laser Pulses
Abstract—We have obtained limits of detection (LoD) of Al (396.15 nm), Ba (553.35 nm), Ca (422.67 nm), Mg (285.21 nm), Na (588.99 nm) and Mn (403.08...
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Ablation of (111) and (001) Crystal Plates by Ultrashort Laser Pulses with Rotated Linear Polarization
The dependence of the threshold fluence for surface ablation of such crystalline materials as silicon and diamond (with orientations (001) and (111))...
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Ultra-wide bandwidth all-solid specialty bandgap fiber for ultrashort pulse delivery
We present a specialty photonic bandgap fiber (PBG) with multiple concentric cores based on the one-dimensional (1D) photonic crystal geometry in an...
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Controlled Nanostructuring of Transparent Matter with Temporal Airy Pulses
Ultrashort near-infrared femtosecond laser pulses have become the tool of choice for high-precision processing of transparent ultrawide bandgap...