SUM-FREQUENCY GENERATION AT SURFACES USING AN INFRARED FEL SYNCHRONIZED WITH A YAG LASER

Authors
PEREMANS A GUYOTSIONNEST P TADJEDDINE A GLOTIN F ORTEGA JM PRAZERES R
Citation
A. Peremans et al., SUM-FREQUENCY GENERATION AT SURFACES USING AN INFRARED FEL SYNCHRONIZED WITH A YAG LASER, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 331(1-3), 1993, pp. 10219028-10219029
Citations number
7
Categorie Soggetti
Nuclear Sciences & Tecnology","Physics, Particles & Fields","Instument & Instrumentation",Spectroscopy
Journal title
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment → ACNP
ISSN journal
01689002
Volume
331
Issue
1-3
Year of publication
1993
Pages
10219028 - 10219029
Database
ISI
SICI code
0168-9002(1993)331:1-3<10219028:SGASUA>2.0.ZU;2-G
Abstract
Synchronization of a solid state laser with a widely tunable IR FEL wi ll make nonlinear optical surface spectroscopy, such as sum-frequency generation (SFG), possible beyond the wavelength achievable using conv entional means. For this purpose, we synchronized a frequency doubled mode-locked YAG laser with the FEL-CLIO (tunable between 2 and 20 mum) . Sum-frequency generation has been obtained by mixing the two beams o n the surfaces of GaAs and of Ag(111) evaporated on mica. This very pr eliminary result demonstrates that FEL-CLIO is a promising tool for vi brational spectroscopy of adsorbate by SFG.