Title :
Generation of intense terahertz radiation from laser-produced plasma of metal foil target
Author :
Nashima, S. ; Shimizu, K. ; Hosoda, M. ; Murakami, H. ; Orimo, S. ; Ogura, K. ; Mori, M. ; Sagisaka, A. ; Daido, H.
Author_Institution :
Osaka City Univ., Osaka
Abstract :
We observed high-power terahertz (THz) radiation from a metal foil target excited by terawatt laser pulses. The radiated terahertz pulse spectrum obtained by a Martin-Puplett interferometer was distributed from 0.1 to 0.75 THz. We found that radiation power was significantly increased as the excitation laser power increased. A power-law correlation with an exponent of 2 - 4 was estimated using a curve fitting.
Keywords :
curve fitting; plasma production by laser; terahertz wave generation; Martin-Puplett interferometer; curve fitting; frequency 0.1 THz to 0.75 THz; intense terahertz radiation generation; laser-produced plasma; metal foil target; terawatt laser pulses; Bolometers; Laser excitation; Optical pulses; Plasmas; Power lasers; Pulse amplifiers; Radiation detectors; Surface emitting lasers; Wire; X-ray lasers;
Conference_Titel :
Infrared, Millimeter and Terahertz Waves, 2008. IRMMW-THz 2008. 33rd International Conference on
Conference_Location :
Pasadena, CA
Print_ISBN :
978-1-4244-2119-0
Electronic_ISBN :
978-1-4244-2120-6
DOI :
10.1109/ICIMW.2008.4665808
