Bulletin of the American Physical Society
APS March Meeting 2011
Volume 56, Number 1
Monday–Friday, March 21–25, 2011; Dallas, Texas
Abstract: S1.00068 : Subpicosecond photonic switching based on bacteriorhodopsin
Author:
All-optical data processing is the most promising approach for further
improvement in data trafficking. We present a subpicosecond photonic switch
where the active role is performed by the chromoprotein bacteriorhodopsin.
The changes in the refractive index that accompany the steps of the
photocycle of bacteriorhodopsin are used for all optical switching in
appropriate integrated optical devices. We use grating coupled planar
waveguides and the coupling is modulated by the light induced refractive
index changes of bacteriorhodopsin. The switching is demonstrated in
ultrafast pump-probe experiments. Different transitions of the photocycle
are explored for switching applications. We show that by using the bR to I
transition subpicosecond switching can be readily achieved. The approach is
a basis for protein-based integrated optical devices, eventually leading to
a conceptual revolution in telecommunications technologies.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2011.MAR.S1.68
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