Giant enhancement of surface second harmonic generation in BaTiO3 due to photorefractive surface wave excitation

Authors
Smolyaninov, II Lee, CH Davis, CC
Citation
Ii. Smolyaninov et al., Giant enhancement of surface second harmonic generation in BaTiO3 due to photorefractive surface wave excitation, PHYS REV L, 83(12), 1999, pp. 2429-2432
Citations number
17
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
00319007 → ACNP
Volume
83
Issue
12
Year of publication
1999
Pages
2429 - 2432
Database
ISI
SICI code
0031-9007(19990920)83:12<2429:GEOSSH>2.0.ZU;2-X
Abstract
We report observation of strongly enhanced surface second harmonic generati on (SHG) in BaTiO3 due to excitation of a photorefractive surface electroma gnetic wave. Surface SH intensity may reach 10(-2) of the incident fundamen tal light intensity. Angular, crystal orientation, and polarization depende ncies of this SHG are presented. Possible applications of this effect in no nlinear surface spectroscopy are discussed.