The intensity-dependent refractive index of chemically enhanced bacteriorhodopsin

Q. Wang Song; Chunping Zhang; Richard B. Gross; Robert R. Birge

doi:10.1016/0030-4018(94)90634-3

The intensity-dependent refractive index of chemically enhanced bacteriorhodopsin

Q. Wang Song, Chunping Zhang, Richard B. Gross, Robert R. Birge

Department of Electrical Engineering & Computer Science

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

36 Scopus citations

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 transformation. 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.

Original language	English (US)
Pages (from-to)	296-301
Number of pages	6
Journal	Optics Communications
Volume	112
Issue number	5-6
DOIs	https://doi.org/10.1016/0030-4018(94)90634-3
State	Published - Dec 1 1994

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Physical and Theoretical Chemistry
Electrical and Electronic Engineering

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10.1016/0030-4018(94)90634-3

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title = "The intensity-dependent refractive index of chemically enhanced bacteriorhodopsin",

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 transformation. 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.",

author = "Song, {Q. Wang} and Chunping Zhang and Gross, {Richard B.} and Birge, {Robert R.}",

note = "Funding Information: This research is supported in part by the W.M. Keck Foundation, New York Science and Technology Foundation through CASE Center, NIH under grant GM-34548 and Rome Laboratory under contracts F30602-92-C-0036 and F30602-93-C-0059.",

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AU - Song, Q. Wang

AU - Zhang, Chunping

AU - Gross, Richard B.

AU - Birge, Robert R.

N1 - Funding Information: This research is supported in part by the W.M. Keck Foundation, New York Science and Technology Foundation through CASE Center, NIH under grant GM-34548 and Rome Laboratory under contracts F30602-92-C-0036 and F30602-93-C-0059.

PY - 1994/12/1

Y1 - 1994/12/1

N2 - 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 transformation. 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.

AB - 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 transformation. 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.

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The intensity-dependent refractive index of chemically enhanced bacteriorhodopsin

Abstract

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