Spatial emission characteristics from electron oscillation driven by circularly polarized laser pulses

2014 ◽  
Author(s):  
Youwei Tian ◽  
Gao Yu ◽  
Yuanyuan Wang ◽  
Jingxia Jiang ◽  
Qiuyuan Zhang
Keyword(s):  
Laser Pulses ◽  
Emission Characteristics ◽  
Circularly Polarized ◽  
Electron Oscillation

Quasi-monochromatic spectral emission characteristics from electron collision with tightly focused laser pulses

Laser Physics ◽  
2021 ◽  
Vol 31 (3) ◽  
pp. 035401
Author(s):  
Jiawei Zhuang ◽  
Yilv Yan ◽  
Xi Zhou ◽  
Zujie Chen ◽  
Shanling Ren ◽  
...  
Keyword(s):  
Laser Pulses ◽  
Electron Collision ◽  
Emission Characteristics ◽  
Spectral Emission

scholarly journals Circularly-polarized THz wave emission from a micro-thin water flow

2020 ◽  
Author(s):  
Hsin-Hui Huang ◽  
Saulius Juodkazis ◽  
Eugene Gamaly ◽  
Takeshi Nagashima ◽  
Tetsu Yonezawa ◽  
...  
Keyword(s):  
Water Flow ◽  
Wavelength Region ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
Intense Laser ◽  
Practical Implementation ◽  
Focal Volume ◽  
Circularly Polarized ◽  
Thz Wave ◽  
Wave Emission

Abstract Intense THz wave sources are highly expected for further progresses in nonlinear THz science and practical implementation of non-ionizing radiation in sensing and communications. Solid-based sources have inherent limits of material breakdown, while intense laser irradiation of liquids is a promising emerging technique for THz wave and hard X-ray emission. Water-based THz emission shows intensity enhancements up to 103 times when laser-pulse pairs with nanosecond delay are used. Here we show circularly- polarized THz wave emission from thin water flow irradiated by two time-separated and linearly-polarized femtosecond laser pulses. THz time-domain spectroscopy reveals the circularly-polarized THz emission dominates 4.7 ns after the first pulse irradiation. THz wave detection delay in the spectroscopy and time-resolved micrography indicate that the THz wave emission originates from the rarefied volume in front of the flow. Radial relaxation of charges (currents) in the focal volume where ponderomotive charge depletion occurred is the origin for the circular polarization; tight focusing localized THz wave emission to the sub-wavelength region.

Circularly polarized sub-1.5 cycle laser pulses at 1.8 μm

2013 ◽  
Vol 115 (1) ◽  
pp. 93-97 ◽  
Author(s):  
Liwei Song ◽  
Chuang Li ◽  
Ya Bai ◽  
Rongjie Xu ◽  
Peng Liu ◽  
...  
Keyword(s):  
Laser Pulses ◽  
Circularly Polarized

scholarly journals Strong field double ionization of Helium with ultra-short phase stabilized circularly polarized laser pulses

2014 ◽  
Vol 488 (3) ◽  
pp. 032010
Author(s):  
M S Schöffler ◽  
X Xie ◽  
S Roither ◽  
D Kartashov ◽  
A Baltuska ◽  
...  
Keyword(s):  
Strong Field ◽  
Laser Pulses ◽  
Double Ionization ◽  
Circularly Polarized

Depolarization of the supercontinuum induced by linearly and circularly polarized femtosecond laser pulses in water

2021 ◽  
Vol 104 (5) ◽  
Author(s):  
Jing Li ◽  
Wenjiang Tan ◽  
Jinhai Si ◽  
Shiyun Tang ◽  
Yang Yang ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
Circularly Polarized
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