Second-order nonlinear optical properties of unpoled bent molecules in powder and in vacuum-deposited film

Geon Joon Lee, Soon Wook Cha, Seung Joon Jeon, Jung Il Jin, Jae Sun Yoon

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The second-order nonlinear optical (NLO) properties of the monolithic bent molecule (Cz-Ocursive Greek chid2), two oxadiazolylstyryl moieties bridged to a carbazole, have been investigated for powder and film forms. The powdered sample was studied by using second harmonic generation with a total reflection geometry, and the effective NLO coefficient of Cz - Ocursive Greek chid2 in powder form was measured to be 1.2 pm/V at a fundamental wavelength of 1.36 μm. In the ultrathin film prepared by using the vacuum deposition method, a bent molecule was found to have a tendency to be aligned parallel on the surface of a solid substrate.

Original languageEnglish
Pages (from-to)912-915
Number of pages4
JournalJournal of the Korean Physical Society
Issue number5
Publication statusPublished - 2001 Nov 1


ASJC Scopus subject areas

  • Physics and Astronomy(all)

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