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 language | English |
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Pages (from-to) | 71-78 |
Number of pages | 8 |
Journal | Proceedings of SPIE - The International Society for Optical Engineering |
Volume | 3135 |
DOIs | |
State | Published - 1 Dec 1997 |
Event | Precision Plastic Optics for Optical Storage, Displays, Imaging, and Communications - San Diego, CA, United States Duration: 30 Jul 1997 → 30 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