Broadband Electromagnetic Wave Emission from an Atomic Cluster Plasma Produced by Femtosecond Laser Pulses: From X-Ray to Terahertz Wavelengths

2017 ◽  
pp. 153-158
Author(s):  
Alexander Shkurinov
Keyword(s):  
Electromagnetic Wave ◽  
Femtosecond Laser ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
Atomic Cluster ◽  
X Ray ◽  
Wave Emission

scholarly journals Dual THz Wave and X-ray Generation from a Water Film under Femtosecond Laser Excitation

Nanomaterials ◽  
2018 ◽  
Vol 8 (7) ◽  
pp. 523 ◽  
Author(s):  
Hsin-hui Huang ◽  
Takeshi Nagashima ◽  
Wei-hung Hsu ◽  
Saulius Juodkazis ◽  
Koji Hatanaka
Keyword(s):  
Femtosecond Laser ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
Intense Laser ◽  
Pulse Excitation ◽  
Light Sources ◽  
Solution Flow ◽  
X Ray ◽  
Thz Wave ◽  
Wave Emission

Simultaneous emission of the THz wave and hard X-ray from thin water free-flow was induced by the irradiation of tightly-focused femtosecond laser pulses (35 fs, 800 nm, 500 Hz) in air. Intensity measurements of the THz wave and X-ray were carried out at the same time with time-domain spectroscopy (TDS) based on electro-optic sampling with a ZnTe(110) crystal and a Geiger counter, respectively. Intensity profiles of the THz wave and X-ray emission as a function of the solution flow position along the incident laser axis at the laser focus show that the profile width of the THz wave is broader than that of the X-ray. Furthermore, the profiles of the THz wave measured in reflection and transmission directions show different features and indicate that THz wave emission is, under single-pulse excitation, induced mainly in laser-induced plasma on the water flow surface. Under double-pulse excitation with a time separation of 4.6 ns, 5–10 times enhancements of THz wave emission were observed. Such dual light sources can be used to characterise materials, as well as to reveal the sequence of material modifications under intense laser pulses.

Spatial distribution of soft x-ray line emissions from aluminum plasma excited by a pair of femtosecond-laser pulses

2006 ◽  
Vol 99 (6) ◽  
pp. 063302 ◽  
Author(s):  
Yasuaki Okano ◽  
Katsuya Oguri ◽  
Tadashi Nishikawa ◽  
Hidetoshi Nakano
Keyword(s):  
Spatial Distribution ◽  
Femtosecond Laser ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
X Ray ◽  
Aluminum Plasma

Hard X-ray generation and plasma filament formation under interaction of femtosecond laser pulses with large molecular clusters

2013 ◽  
Vol 67 (3) ◽  
Author(s):  
Vyacheslav M. Gordienko ◽  
Murat S. Dzhidzhoev ◽  
Irina A. Zhvaniya ◽  
Viktor T. Platonenko ◽  
Dmitriy N. Trubnikov ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Laser Pulses ◽  
Molecular Clusters ◽  
Femtosecond Laser Pulses ◽  
Filament Formation ◽  
X Ray ◽  
Plasma Filament

X-ray diffraction from the ripple structures created by femtosecond laser pulses

2010 ◽  
Vol 100 (1) ◽  
pp. 105-112 ◽  
Author(s):  
A. Jurgilaitis ◽  
R. Nüske ◽  
H. Enquist ◽  
H. Navirian ◽  
P. Sondhauss ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
X Ray Diffraction ◽  
X Ray
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