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Proceedings Paper

Intensity-dependent refractive index of chemically enhanced bacteriorhodopsin
Author(s): Qi Wang Song; Chunping Zhang
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Paper Abstract

The intensity-dependent refractive index of a chemically enhanced bacteriorhodopsin film is shown to be composed of two components. The first arises from the shift in absorption band accompanying the bR ->M phototransformation and follows the predictions made by the Kramers-Kronig transfonnation. An additional modulation is observed at high laser intensities and is the likely result of a thermal lensing effect induced by laser heating. This study provides for the first time new insight and quantitative descriptions of the regimes of the refractive index modulation in bacteriorhodopsin and is helpful in understanding the potential use of the BR refractive index modulation in optical applications.

Paper Details

Date Published: 5 August 1994
PDF: 5 pages
Proc. SPIE 2321, Second International Conference on Optoelectronic Science and Engineering '94, (5 August 1994); doi: 10.1117/12.182077
Show Author Affiliations
Qi Wang Song, Syracuse Univ. (United States)
Chunping Zhang, Nankai Univ. (China)


Published in SPIE Proceedings Vol. 2321:
Second International Conference on Optoelectronic Science and Engineering '94
Wang Da-Heng; Anna Consortini; James B. Breckinridge, Editor(s)

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