Relative contribution of the electric-field-induced third-order effect to second-harmonic generation in poled, doped, amorphous polymersr

Ali Dhinojwala, George K. Wong, John M. Torkelson

Research output: Contribution to journalArticle

27 Scopus citations

Abstract

A novel approach involving a delay-trigger method and doped, glassy polymers has been developed to determine the contribution of the electric-field-induced third-order effect to the second-order macroscopic susceptibility χ(2) of nonlinear optical dyes. A submillisecond, variable time delay is employed for switching on or off the electric poling field with respect to the laser pulse. For the several dyes tested at 30°C the contribution of the electric-field-induced third-order effect (second-harmonic wavelength = 532 nm) ranges from (6 ± 2)% of (2) 4-(dimethylamino)benzylidenemalononitrile to (20 ± 3)% of χ(2) for 4-(dimethylamino)-41-nitrostilbene.

Original languageEnglish (US)
Pages (from-to)1549-1554
Number of pages6
JournalJournal of the Optical Society of America B: Optical Physics
Volume11
Issue number9
DOIs
StatePublished - Sep 1994

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Atomic and Molecular Physics, and Optics

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