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Optics Letters

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  • Vol. 21, Iss. 17 — Sep. 1, 1996
  • pp: 1339–1341

Effective photochromic nonlinearity of dried blue-membrane bacteriorhodopsin films

Jack Tallent, Q. Wang Song, Zengfa Li, Jeff Stuart, and R. R. Birge  »View Author Affiliations


Optics Letters, Vol. 21, Issue 17, pp. 1339-1341 (1996)
http://dx.doi.org/10.1364/OL.21.001339


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Abstract

We report the effective nonlinearity for photochromic conversion in a blue-membrane bacteriorhodopsin film hosted in a dry polyvinyl alcohol matrix. The shift in absorption maximum on photoconversion in this film is larger than that of the same material in hydrated form, thus offering a larger modulation of the refractive index. The photoexcited index modulation is stable for several months, which provides for holographic data recording and long-term photochromic data storage. The effective index modulation is experimentally measured and is in good agreement with the theoretical predictions based on the Kramers–Kronig transformation.

© 1996 Optical Society of America

History
Original Manuscript: March 4, 1996
Published: September 1, 1996

Citation
Jack Tallent, Q. Wang Song, Zengfa Li, Jeff Stuart, and R. R. Birge, "Effective photochromic nonlinearity of dried blue-membrane bacteriorhodopsin films," Opt. Lett. 21, 1339-1341 (1996)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-21-17-1339


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