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Journal of Nanophotonics

Radiation resistance of a gamma-ray irradiated nonlinear optic chromophore
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Paper Abstract

The radiation resistance of organic electro-optic and optoelectronic materials for space applications is receiving increased attention. An earlier investigation reported that guest-host poled polymer EO modulator devices composed of a phenyltetraene bridge-type chromophore in amorphous polycarbonate (CLD/APC) did not exhibit a decrease in EO response (i.e., an increase in modulation-switching voltage- ) following irradiation by low dose [10-160 krad(Si)] 60Co gamma-rays. To provide further evidences to the observed radiation stability, the post-irradiation responses of 60Co gamma-rays on CLD1/APC thin films are examined by various chemical and spectroscopic methods including: a solubility test, thin-layer chromatography, proton nuclear magnetic resonance spectroscopy, UV-vis absorption, and infra-red absorption. The results indicate that CLD1 and APC did not decompose under gamma-ray irradiation at dose levels ranging from 66-274 krad(Si) and from 61-154 krad(Si), respectively which support the previously reported data.

Paper Details

Date Published: 1 November 2009
PDF: 10 pages
J. Nanophoton. 3(1) 031860 doi: 10.1117/1.3272920
Published in: Journal of Nanophotonics Volume 3, Issue 1
Show Author Affiliations
Cheng Zhang, Norfolk State Univ. (United States)
Edward W. Taylor, International Photonics Consultants, Inc. (United States)


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