✦ LIBER ✦

Hyperpolarisability of (donor)2-acceptor-type molecules determined by EFISHG

✍ Scribed by Isabelle Maltey; Jacques A. Delaire; Keitaro Nakatani; Pengfei Wang; Xiangyang Shi; Shikang Wu

Publisher: John Wiley and Sons
Year: 1996
Tongue: English
Weight: 324 KB
Volume: 6
Category: Article
ISSN: 1616-301X
DOI: 10.1002/(sici)1099-0712(199609)6:5/6<233::aid-amo272>3.0.co;2-1

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✦ Synopsis

Molecular first-order hyperpolarisabilities j3 of (donor),-acceptor type molecules have been determined by electric field induced second-harmonic generation (EFISHG) experiments at 1.06 pm. The hyperpolarisability values are enhanced in these two dimensional charge transfer molecules, compared with a reference linear model molecule. One of these molecules absorbs part of the second-harmonic beam. We propose a determination method for j3 that takes into account this phenomenon. Crystals of the title molecules exhibit second harmonic generation by the powder test.

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