Intensity dependence of picosecond nonlinear response time of polydiacetylene
- 21 November 1988
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 53 (21), 2008-2010
- https://doi.org/10.1063/1.100324
Abstract
The relaxation time of the transient degenerate four-wave mixing grating in 4-butoxycarbonylmethylurethane polydiacetylene in polymethylmethacrylate matrix films has been found to be laser energy fluence dependent. This phenomenon is attributed to a transient reversible light-induced structure change in polydiacetylene films, involving a cooperative effect originating from side-chain intramolecular hydrogen bonding.Keywords
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