Resonant and Non-Resonant Optical Frequency Mixing in Simple Molecular Systems.
MICHIGAN UNIV ANN ARBOR DEPT OF PHYSICS
Pagination or Media Count:
A technique based on dc-electric-field induced optical second-harmonic generation for measuring second- and third-order electric polarizabilities of molecules in the vapor phase has been developed. The technique has been used to produce detailed and precise data for a wide range of molecules which exist either as gases or liquids at ambient temperature. Hypolarizabilities give rise to phenomena such as optical frequency mixing, modulation and demodulation. Vapors offer technological advantages over crystals for these purposes but the main motivation in our present work is to gain a detailed, fundamental understanding of these properties in the simplest possible molecular systems. This ruby laser radiation is in resonance with two-photon transition in cesium and this system is a useful one in which to study a number of resonant nonlinear optical processes two-photon absorption and subsequent fluorescence, third harmonic generation, and four-photon parametric oscillation. Author
- Lasers and Masers