Share Email Print
cover

Proceedings Paper

Femtosecond time-resolved interferometers to determine nonlinear susceptibilities
Author(s): Takayoshi Kobayashi
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

For the first time, we have investigated the manyfold symmetry of (100)-cut silicon single crystals with degenerate four wave mixing (DFWM). Amplified CPM laser pulses with 90 fs duration and 100 MW peak power at 7 kHz repetition rate and 620 nm wavelength were used as excitation. The DFWM signal was detected in the forward (almost phasematched) geometry while the crystal was rotated around an axis perpendicular to its surface (i.e. to the (100) crystal plane). The anisotropy of the silicon was determined as cr=Xd/Xiiii =0.24+0.02 from the rotational angle - intensity curves at X=620 nm. The time resolved pump-and-probe type experiments showed, that the anisotropy of the DFWM signal changed within 25 fs. The dependence of the DFWM process on the polarization conditions was found to be the same as the theoretical prediction".

Paper Details

Date Published: 23 July 1993
PDF: 10 pages
Proc. SPIE 1983, 16th Congress of the International Commission for Optics: Optics as a Key to High Technology, 19839Z (23 July 1993); doi: 10.1117/12.2308778
Show Author Affiliations
Takayoshi Kobayashi, The Univ. of Tokyo (Japan)


Published in SPIE Proceedings Vol. 1983:
16th Congress of the International Commission for Optics: Optics as a Key to High Technology
Gyorgy Akos; Tivadar Lippenyi; Gabor Lupkovics; Andras Podmaniczky, Editor(s)

© SPIE. Terms of Use
Back to Top