Photostability enhancement studies on zwitterionic chromophores for nonlinear optics

S. G. Raymond; S. Janssens; My T. T. Do; G. V. M. Williams; N. Denton; J. Anderson; M. D. H. Bhuiyan

doi:10.1117/12.841269

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1 March 2010 Photostability enhancement studies on zwitterionic chromophores for nonlinear optics

S. G. Raymond, S. Janssens, My T. T. Do, G. V. M. Williams, N. Denton, J. Anderson, M. D. H. Bhuiyan

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Proceedings Volume 7599, Organic Photonic Materials and Devices XII; 759914 (2010) https://doi.org/10.1117/12.841269
Event: SPIE OPTO, 2010, San Francisco, California, United States

Abstract

Optical and photostability measurements have been made on nonlinear optical films containing amorphous polycarbonate and an organic chromophore that has a high 2nd order nonlinear optical figure of merit. We show that the decrease in the photodegradation quantum efficiency with increasing optical intensity can be modelled in terms of oxygen depletion by oxygen-mediated chomophore photodegradation. The addition of a known singlet oxygen quencher, beta carotene, leads to a 1100% decrease in the photodegradation quantum efficiency.

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S. G. Raymond, S. Janssens, My T. T. Do, G. V. M. Williams, N. Denton, J. Anderson, and M. D. H. Bhuiyan "Photostability enhancement studies on zwitterionic chromophores for nonlinear optics", Proc. SPIE 7599, Organic Photonic Materials and Devices XII, 759914 (1 March 2010); https://doi.org/10.1117/12.841269

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