First hyperpolarizabilities of dipolar photoconductive chromophores: An approach toward monolithic molecular materials for photorefractivity

Sehoon Kim, Hyunsik Moon, Jaehoon Hwang, Jiwon Sohn, Jangwon Seo, Soo Young Park, Tae Im Kang, Bong-Rae Cho

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Second-order optical nonlinearities of a series of dipolar photoconductive chromophores have been investigated by semiempirical quantum chemical calculations using time-dependent Hartree-Fock formalism in conjunction with PM3 parameter and experimental evaluation of the first molecular hyperpolarizability (β). A linear correlation between the measured and calculated β values was observed, and the structure-property relationship discussed in terms of the structural variation. It was noted that the optical nonlinearities of the dipolar photoconductive molecules with carbazole, indole, or indoline as donor units are large enough for the electrooptic and photorefractive applications. (C) 2000 Elsevier Science B.V.

Original languageEnglish
Pages (from-to)289-294
Number of pages6
JournalChemical Physics
Volume256
Issue number3
DOIs
Publication statusPublished - 2000 Jun 15

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Keywords

  • Dipolar photoconductive chromophore
  • First hyperpolarizability (β)
  • Hyper-Rayleigh scattering
  • Photorefractivity
  • Second-order optical nonlinearity
  • Semiempirical calculation

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Spectroscopy
  • Atomic and Molecular Physics, and Optics

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