Journal
OPTICS EXPRESS
Volume 19, Issue 20, Pages 18861-18870Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.19.018861
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Funding
- OTKA [CK-78367, K-75149]
- NATO SFP [974262]
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Several inorganic and organic materials have been suggested for utilization as nonlinear optical material performing light-controlled active functions in integrated optical circuits, however, none of them is considered to be the optimal solution. Here we present the first demonstration of a subpicosecond photonic switch by an alternative approach, where the active role is performed by a material of biological origin: the chromoprotein bacteriorhodopsin, via its ultrafast BR->K and BR->I transitions. The results may serve as a basis for the future realization of protein-based integrated optical devices that can eventually lead to a conceptual revolution in the development of telecommunications technologies. (C) 2011 Optical Society of America
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