Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals vol. 247, pp. 59 - 65
Publisher
Gordon &
Breach Science Publ Inc, Newark, NJ, United States
Indexed
SCOPUS
Document Type
Article
Abstract
Time-reversal symmetry property of a second order nonlinear optical hyperpolarizability is examined in terms of the Manley-Rowe power relation to find relationship to the overall permutation symmetry. An extended symmetry relation is discovered reducing the independent number of the hyper-polarizability tensor components describing the second order nonlinear optical processes. Experimental implications are discussed.