Polarization dependent electrostrictive grating measurements.
The laser induced grating spectroscopy experiments were performed with different polarizations of 1064 nm laser pump beams. Thermal and electrostrictive gratings were observed in the mixture of nitrogen at high pressure with methanol vapor. Suppression of gratings by a continuous change of pump beam polarizations was verified both theoretically and experimentally. Odd and even peaks of the registered signal were found to be responsible, respectively, for electrostrictive and thermal gratings in gas media.
Rozouvan
Stanislav
S
Functional Materials Physics, Physics Department, Taras Shevchenko Kyiv University, 2 Glushkov Prosp., Build. 1, 03680 Kyiv, Ukraine. sgr@univ.kiev.ua