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Conferences > PEMD > 2003 > MCO > 230

Study of the refractive index change of Bacteriorhodopsin by the Z-scan and phase-modulated beams techniques

Yu.O. Barmenkov and A.V. Kir’yanov

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Abstract

Study of intensity dependent refractive index change of polymer film containing bacteriorhodopsin (BR) by the two techniques, Z-scan and phase-modulated beams, and at two excitation wavelengths, 543 and 633 nm, corresponding to the opposite slops of ground-state absorption line of the BR molecule, is reported. A three-level scheme of the BR photocycle is proposed to explain the experimental results.

© 2003 Optical Society of America

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