Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Kim, J.*; Kim, D. E.*; Kawachi, Tetsuya; Hasegawa, Noboru; Sukegawa, Kota*; Iwamae, Atsushi*; Fujimoto, Takashi*
Journal of the Optical Society of Korea, 7(3), p.145 - 149, 2003/09
The anistropy of electron energy distribution in oxygen plasmas produced by a high intensinty laser was investigated by using polarization spectroscopy. An ultra-short pulsed laser with a pulse duration of 66.5 fs and a power density of 110 W/cm was used. At this power density and pulse duration, the plasma was generated predominantly by optical field ionization. The degree of polarization of OVI 1s2p P-1s4d D (J=1/2-3/2 and J=3/2-5/2) transition line at 129.92 の1s 2pP-1s4sS (J=1/2-1/2 and J=3/2-1/2) transition line at 132.26 AA was used to calibrate the sensitivity of the optical system. The dependencies of the degree of polarization on the initial gas density and on the laser polarization were investigated. When the laser polarization was changed from a linear to a circlar polarization was decreased. When the initial gas density was increased, the degree of polarization was decreased.
Kawashima, Hisato; Hasegawa, Mitsuru*; Fuchs, G.*; Matoba, Toru; ; Hoshino, Katsumichi; Kawakami, Tomohide; Yamamoto, Takumi
Japanese Journal of Applied Physics, 33(6A), p.3590 - 3596, 1994/00
Times Cited Count:4 Percentile:30.05(Physics, Applied)no abstracts in English
; ;
JAERI-M 84-207, 10 Pages, 1984/11
no abstracts in English