| Title | Photostability enhancement studies on zwitterionic chromophores for nonlinear optics |
| Publication Type | Conference Paper |
| Year of Publication | 2010 |
| Authors | Raymond, S.G., Janssens S., Do M.T.T., Williams G.V.M., Denton N., Anderson J., and Bhuiyan M.D.H. |
| Conference Name | Proceedings of SPIE - The International Society for Optical Engineering |
| Date Published | 2010 |
| Keywords | Amorphous films, Amorphous polycarbonates, Beta carotene, Chromophores, Figure of merit, Non-linear optical, Nonlinear optics, Optical intensities, Optical materials, Organic chromophores, Oxygen, Oxygen depletion, Photo-stability, Photonic devices, Quantum efficiency, Semiconductor quantum dots, Singlet oxygen |
| 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. © 2010 Copyright SPIE - The International Society for Optical Engineering. |
| URL | http://www.scopus.com/inward/record.url?eid=2-s2.0-77951528104&partnerID=40&md5=2ff2568f3c9507cd43ae4a4db97abefe |
| DOI | 10.1117/12.841269 |
