Second-order hyperpolarizabilities of aromatic carboxylates without visible absorption

Xuan Ming Duan, Tatsumi Kimura, Shuji Okada, Hidetoshi Oikawa, Hiro Matsuda, Masao Kato, Hachiro Nakanishi

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    19 Citations (Scopus)

    Abstract

    The second-order hyperpolarizabilities (I) of aromatic carboxylates were evaluated by the hyper Rayleigh scattering method at 1.064 I and semiempirical molecular orbital calculation. The I values of methyl methoxybenzo-ate and its dimer in methanol solution were measured to be 22 and 49 x 10-30 esu, respectively, which are about 0.6 and 1.3 times that of p-nitroaniline. The calculation of I and dipole moment (I) of the methyl methoxybenzo-ate oligomers revealed an almost linear increase of these values with increasing number of repeating units up to trimers. Since the oligomers have a short cutoff wavelength of about 300 nm as well as large I and, these compounds are concluded to be promising chromophores for second-order nonlinear optics.

    Original languageEnglish
    Pages (from-to)L1161-L1163
    JournalJapanese journal of applied physics
    Volume34
    Issue number9
    DOIs
    Publication statusPublished - 1995 Sep

    Keywords

    • Aromatic carboxylates
    • Hyper Rayleigh scattering
    • Hyperpolarizability
    • Second-harmonic generation
    • Semiempirical molecular orbital calculation

    ASJC Scopus subject areas

    • Engineering(all)
    • Physics and Astronomy(all)

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