Light-trapping as a lattice resonance phenomenon

✍ Scribed by A. H. Piekara

• Book ID: 104539770
• Publisher: John Wiley and Sons
• Year: 1970
• Tongue: English
• Weight: 291 KB
• Volume: 42
• Category: Article
• ISSN: 0370-1972
• DOI: 10.1002/pssb.19700420104

✦ Synopsis

Abstract

Existing molecular models of the light‐trapping effect are not suitable to explain particularities of this phenomenon. A resonant interaction is proposed between a self‐modulated light pulse and thermally excited lattice standing waves. Such a mechanism leads to a double space periodicity of the “filament” number as well as of the intensity of stimulated Brillouin and Raman scattering. Only thermal periodicity of this phenomena has been observed [5, 18, 19] which may be understood in terms of thermal expansion [15]. To proof the validity of the resonant mechanism some new experiments are suggested.