| Autor: |
Sharma, Giriraj, Dad, R. C., Ghosh, S., Sharma, Yogita R. |
| Předmět: |
|
| Zdroj: |
AIP Conference Proceedings; 2020, Vol. 2224 Issue 1, p040020-1-040020-7, 7p |
| Abstrakt: |
An attempt has been made to study the effects of stationary nano-sized ion grains (NSGs) on the nonlinear parametric interaction (PI) of laser with an n-type piezoelectric semiconductor plasmas in presence of a transverse magnetic field. It is assumed that the streaming electrons collide with the NSGs and stick onto them, which results into net negative charge on NSGs and depletion of electron density of the plasma. In the present paper, we have investigated the effect of charge depletion on the threshold pump field for the onset of parametric interaction and spatial gain coefficient of the scattered mode. It is found that as the number of electrons sticking onto the NSGs increases, the threshold pump field reduces in relatively lightly and moderately doped semiconductor but increases in the heavily doped. With increase in doping concentration, the scattered mode shows attenuation in the region ωp < ω0. At the resonance condition ωp ≈ ω0, the amplification of the scattered mode sharply increases to maximum and falls thereafter with increase in doping level. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
