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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/3567
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dc.contributor.authorYelleswarapu, Chandra S.-
dc.contributor.authorLaoui, S.-
dc.contributor.authorPhilip, Reji-
dc.contributor.authorRao, D.V.G.L.N.-
dc.date.accessioned2008-06-18T10:03:53Z-
dc.date.available2008-06-18T10:03:53Z-
dc.date.issued2008-03-
dc.identifier.citationOptics Express, 2008, Vol.16, p3844en
dc.identifier.issnE-ISSN: 1094-4087-
dc.identifier.urihttp://hdl.handle.net/2289/3567-
dc.descriptionRestricted Access. The article is open access at the journal site (alternative location)en
dc.description.abstractWe observed superluminal light in aqueous solution of the protein complex bacteriorhodopsin (bR) at 647.1 nm wavelength where it exhibits reverse saturable behavior, exploiting the technique of coherent population oscillations (CPO). With a modulation frequency of 10 Hz, the signal pulse through a 1 cm path cell is ahead by 3 msec relative to the reference pulse, corresponding to a group velocity of -3.3 m/sec. Following our early work on slow light in the same sample at the saturable wavelength 568.2 nm, we now explicitly observed the narrow spectral hole in the absorption band of the stable B state and further, demonstrated a close correlation between the profile of the hole and the corresponding pulse delay for various modulation frequencies. A similar behavior is observed for superluminal light versus antihole blown in the absorption band.en
dc.format.extent126150 bytes-
dc.format.mimetypeapplication/pdf-
dc.language.isoenen
dc.publisherOptical Society of America (OSA)en
dc.relation.urihttp://dx.doi.org/10.1364/OE.16.003844en
dc.rights2008 Optical Society of Americaen
dc.subjectCoherent optical effectsen
dc.subjectOptical nonlinearities in organic materialsen
dc.subjectPulse propagation and temporal solitonsen
dc.subjectBiomaterialsen
dc.titleCoherent population oscillations and superluminal light in a protein complexen
dc.typeArticleen
Appears in Collections:Research Papers (LAMP)

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