DEGENERATE 4-WAVE-MIXING IN PICOSECOND PULSES - STUDY OF THE TEMPORALSHAPE OF THE DIFFRACTED SIGNAL AS A FUNCTION OF THE MATERIAL RESPONSE-TIME

Citation
H. Coic et al., DEGENERATE 4-WAVE-MIXING IN PICOSECOND PULSES - STUDY OF THE TEMPORALSHAPE OF THE DIFFRACTED SIGNAL AS A FUNCTION OF THE MATERIAL RESPONSE-TIME, Journal of the Optical Society of America. B, Optical physics, 11(11), 1994, pp. 2232-2240
Citations number
13
Categorie Soggetti
Optics
ISSN journal
07403224
Volume
11
Issue
11
Year of publication
1994
Pages
2232 - 2240
Database
ISI
SICI code
0740-3224(1994)11:11<2232:D4IPP->2.0.ZU;2-N
Abstract
We present a time-resolved study of the diffracted pulse in degenerate four-wave mixing experiments with short-response-time materials. The first step is the validation of a theoretical model that takes into ac count the temporal characteristics of the energy level (relaxation tim e T1 and dephasing time T2) and of the incident pulse (duration and sp ectral phase) in a simple particular case. Two methods are used for ch aracterizing the diffracted beam: the amplitude correlation with the r eference pulse and the spectrum intensity measurements. We discuss the experimental results, which show good agreement with the theoretical model and evidence the strong influence of the incident pulse characte ristics.