Linear and second order nonlinear optical properties of novel photochromic materials

Baruch Zinger, Pnina Schaer, Garry Berkovic, Guilia Meshulam, Zvi Kotler, Lev Shapiro, Royi Mazor, Vladimir Khodorkovsky

Research output: Contribution to journalConference articlepeer-review

6 Scopus citations

Abstract

We report on a new unique photochromic material which is based on a reversible formation - cleavage of a C-C bond. The bicyclic bindon derivative, 2 (λmax=480nm in toluene) undergoes a photochemical and/or thermally induced ring opening to form the isomer 3 (λmax= 640nm in toluene). The form 3 presents a conjugated donor-acceptor system and exhibits a considerable second-order optical nonlinearity as found by the field induced SHG measurements. The photochromic conversion is also observed in the crystalline form indicated visually by a crystal red-to-green color change. We have studied the reversible ring opening - closure process in liquid and polymeric solutions. Optical and thermal switching and the NLO efficiency of these guest- host polymer are reported.

Original languageEnglish
Pages (from-to)71-78
Number of pages8
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume3135
DOIs
StatePublished - 1 Dec 1997
EventPrecision Plastic Optics for Optical Storage, Displays, Imaging, and Communications - San Diego, CA, United States
Duration: 30 Jul 199730 Jul 1997

Keywords

  • Nonlinear optical chromophore
  • Photochromism
  • Thermochromism

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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