LINEAR AND NONLINEAR-OPTICAL RESPONSES OF A STRONGLY COUPLED ELECTRON-LATTICE SYSTEM

Authors
IIZUKASAKANO T HANAMURA E
Citation
T. Iizukasakano et E. Hanamura, LINEAR AND NONLINEAR-OPTICAL RESPONSES OF A STRONGLY COUPLED ELECTRON-LATTICE SYSTEM, Journal of the Physical Society of Japan, 67(1), 1998, pp. 332-339
Citations number
14
Categorie Soggetti
Physics
Journal title
Journal of the Physical Society of Japan → ACNP
ISSN journal
00319015
Volume
67
Issue
1
Year of publication
1998
Pages
332 - 339
Database
ISI
SICI code
0031-9015(1998)67:1<332:LANROA>2.0.ZU;2-A
Abstract
The spectrum of resonant second-harmonic generation (SHG) is far sharp er than that of linear photo-absorption (LA), as observed for Cr2O3 cr ystal. We show theoretically this comes from the difference that stron g coupling between the localized electronic excitation and lattice vib ration works as intermediate state interaction in SHG while it does as final slate interaction in LA.