TITLE

Evaluation of second-order hyperpolarizabilities for systems with low-energy double transitions by the three-level model

AUTHOR(S)
Suzuki, H.; Sukegawa, K.
PUB. DATE
August 1987
SOURCE
Applied Physics Letters;8/10/1987, Vol. 51 Issue 6, p401
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Second-order hyperpolarizabilities have been calculated by the three-level model for systems having low-energy double transitions. In the three-level model, the second excited state, in addition to the first excited and ground states, is explicitly taken into account. The second-order hyperpolarizabilities calculated by the three-level model gave excellent agreement with the observed values determined by the dc induced second harmonic generation technique, for 4-aminostilbene, p-nitroaniline, and 2-methyl-4-nitroaniline.
ACCESSION #
9823833

 

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