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Please use this identifier to cite or link to this item: http://dspace.lib.cranfield.ac.uk/handle/1826/5724

Document Type: Conference paper
Title: Integrated optical devices using bacteriorhodopsin as active nonlinear optical material
Authors: Dér, A.
Fábián, L.
Valkai, S.
Wolff, E.
Ramsden, Jeremy J.
Ormos, P.
Issue Date: 2006
Citation: A. Dér, L. Fábián, S. Valkai, E. Wolff, J.J. Ramsden, P. Ormos, Integrated optical devices using bacteriorhodopsin as active nonlinear optical material, Linear and Nonlinear Optics of Organic Materials VI, edited by Robert A. Norwood, Proceedings of SPIE Volume 6331, pp. 633119-1-633119-8, (2006)
Abstract: Coupling of optical data-processing devices with microelectronics, telecocommunication and sensory functions, is among the biggest challenges in molecular electronics. Intensive research is going on to find suitable nonlinear optical materials that could meet the demanding requirements of optoelectronic applications, especially regarding high sensitivity and stability. In addition to inorganic and organic crystals, biological molecules have also been considered for use in integrated optics, among which the bacterial chromoprotein, bacteriorhodopsin (bR) generated the most interest. bR undergoes enormous absorption and concomitant refractive index changes upon initiation of a cyclic series of photoreactions by a burst of actinic light. This effect can be exploited to create highly versatile all-optical logical elements. We demonstrate the potential of this approach by investigating the static and dynamic response of several basic elements of integrated optical devices. Our results show that, due to its relatively high refractive index changes, bR can be used as an active nonlinear optical material to produce a variety of integrated optical switching and modulation effects.
URI: http://dx.doi.org/doi:10.1117/12.686173
Appears in Collections:Staff publications - School of Applied Sciences

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