Results 21 to 30 of about 201,828 (293)
IEEE Photonics Journal, 2012 We consider an optical pulse propagating in a tapered photonic crystal fiber (PCF) wherein dispersion as well as nonlinearity varies along the propagation direction.
Samuel Olupitan +4 more
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Design of Excitatory Signal and Matched Filter for Compressed Pulsed Radar
Revista Cubana de Ingeniería, 2013 In this paper is presented pulse compression technique in radar, focusing on Linear Frequency Modulation (LFM). Matched Filter characteristics are the elements considered for pulse compression, algebraic operations are derived to avoid the signal phase ...
Argel Gonzalez Padilla +3 more
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Artery Research, 2020 Background External compression using pneumatic cuff inflation is a well-established model used to induce incremental changes in proximal retrograde flow and shear [1].
Naaz Afreen +4 more
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1.9 μm Few-Cycle Pulses Based on Multi-Thin-Plate Spectral Broadening and Nonlinear Self-Compression
IEEE Photonics Journal, 2021 In attosecond and strong-field physics, the acquisition of few-cycle laser sources open up a new area. We report a nonlinear pulse compression technology combining multi-thin-plate spectral broadening and nonlinear self-compression that generates a 0.52 ...
Beijie Shao +6 more
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Longitudinal drift compression and pulse shaping for high-intensity particle beams
Physical Review Special Topics. Accelerators and Beams, 2002 High beam current can be achieved by longitudinally compressing bunched beams. The objective of drift compression is to compress a long beam bunch by imposing an initial longitudinal velocity distribution over the length of the beam in the beam frame ...
Hong Qin, Ronald C. Davidson
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MPD model for radar echo signal of hypersonic targets
The Journal of Engineering, 2014 The stop-and-go (SAG) model is typically used for echo signal received by the radar using linear frequency modulation pulse compression. In this study, the authors demonstrate that this model is not applicable to hypersonic targets. Instead of SAG model,
Xu Xuefei, Liao Guisheng
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Post-Compression of 9.2-µm Terawatt Laser Pulses to Femtoseconds [PDF]
EPJ Web of Conferences, 2021 Contemporary CO2 laser systems are capable to delivering picosecond pulses of the multi-terawatt peak power. Further pulse compression to a few cycles is possible using a post-compression in bulk materials with negative group velocity dispersion (GVD ...
Pogorelsky Igor V. +3 more
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Electromagnetic modelling of a monolithic pulse reshaper based on a photonic crystal waveguide integrated with a SOA [PDF]
, 2006 Finite difference time domain (FDTD) and finite element (FE) frequency domain methods are used to study the propagation of arbitrary chirped pulses in photonic crystal (PhC) waveguide.
Cao, T +9 more
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New Journal of Physics, 2020 Achieving a few-femtosecond (fs) temporal resolution in electron diffraction and electron microscopy is essential for directly tracking the electronic processes and the fastest atomic motions in molecule and condensed matter systems.
Yingpeng Qi +6 more
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Nearly Self-Similar Pulse Compression in Horizontally Slotted Waveguides at 2.0 μm
IEEE Photonics JournalThe picosecond pulse can be directly generated in the integrated mode-locked laser, which reduces the size of light source to the optical chip. However, it is still a challenge to directly generate femtosecond pulses in the integrated scheme.
Jiayao Huang, Feng Ye, Qian Li
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