Effective photochromic nonlinearity of dried blue-membrane bacteriorhodopsin films

Jack Tallent; Q. Wang Song; Zengfa Li; Jeff Stuart; R. R. Birge

doi:10.1364/OL.21.001339

Effective photochromic nonlinearity of dried blue-membrane bacteriorhodopsin films

Jack Tallent, Q. Wang Song, Zengfa Li, Jeff Stuart, R. R. Birge

Department of Electrical Engineering & Computer Science

Research output: Contribution to journal › Article › peer-review

22 Scopus citations

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.

Original language	English (US)
Pages (from-to)	1339-1341
Number of pages	3
Journal	Optics Letters
Volume	21
Issue number	17
DOIs	https://doi.org/10.1364/OL.21.001339
State	Published - Oct 1 1996

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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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.",

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AU - Stuart, Jeff

AU - Birge, R. R.

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N2 - 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.

AB - 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.

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Effective photochromic nonlinearity of dried blue-membrane bacteriorhodopsin films

Abstract

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