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27 April 1993 Second-harmonic generation in corona-poled polypeptides
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Proceedings Volume 1853, Organic and Biological Optoelectronics; (1993)
Event: OE/LASE'93: Optics, Electro-Optics, and Laser Applications in Scienceand Engineering, 1993, Los Angeles, CA, United States
In order to develop polypeptide-based second order nonlinear optical materials, we have derivatized succinylated poly(l-lysine) with a spiropyran. Spin coated thin films (2 (mu) thickness) of this material on indium tin oxide-coated glass were corona-poled (6 X 105 V/m) under conditions of variable temperature. The degree of alignment and nonlinear optical properties were monitored by measurement of the intensity of second harmonic signal resulting from irradiation at 1064 nm. The dark-adapted polypeptide was in the spiropyran form. The second harmonic signal intensity was 20 times greater than that of the dark-adapted sample. The results demonstrate the feasibility of development of a light- activated nonlinear optical material.
© (1993) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Thomas M. Cooper, Morley O. Stone, Keith A. Obermeier, Robert L. Crane, Bob L. Epling, Zbigniew Tokarski, and Lalgudi V. Natarajan "Second-harmonic generation in corona-poled polypeptides", Proc. SPIE 1853, Organic and Biological Optoelectronics, (27 April 1993);

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