SUM-FREQUENCY GENERATION WITH A FREE-ELECTRON LASER - A STUDY OF GALLIUM-PHOSPHIDE

Authors
BARMENTLO M THOOFT GW ELIEL ER VANDERHAM EWM VREHEN QHF VANDERMEER AFG VANAMERSFOORT PW
Citation
M. Barmentlo et al., SUM-FREQUENCY GENERATION WITH A FREE-ELECTRON LASER - A STUDY OF GALLIUM-PHOSPHIDE, Physical review. A, 50(1), 1994, pp. 180000014-180000017
Citations number
24
Categorie Soggetti
Physics
Journal title
Physical review. A → ACNP
ISSN journal
10502947
Volume
50
Issue
1
Year of publication
1994
Pages
180000014 - 180000017
Database
ISI
SICI code
1050-2947(1994)50:1<180000014:SGWAFL>2.0.ZU;2-8
Abstract
The use of a free-electron laser (FEL) allows the study of (non)linear optical properties of materials over unsurpassed large spectral inter vals. Here we report on the application of a FEL as the IR source in s pectroscopic infrared-visible sum-frequency generation (SFG). Using th e extremely wide tunability and the high peak power of a FEL we have s tudied the frequency dependence of the nonlinear susceptibility for su m-frequency generation in gallium phosphide between 20 and 32 mum in g reat detail. It is shown that the SFG spectrum is heavily modified by linear optical effects.