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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Anthony J. Campillo
  • Vol. 32, Iss. 13 — Jul. 1, 2007
  • pp: 1788–1790

Slow light in bacteriorhodopsin solution using coherent population oscillations

Chandra S. Yelleswarapu, Reji Philip, Francisco J. Aranda, Brian R. Kimball, and D. V. G. L. N. Rao  »View Author Affiliations


Optics Letters, Vol. 32, Issue 13, pp. 1788-1790 (2007)
http://dx.doi.org/10.1364/OL.32.001788


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Abstract

Slow light is demonstrated in liquid phase in an aqueous bacteriorhodopsin (bR) solution at room temperature. Group velocity as low as 3 m s (all the way to c) is achieved by exploiting the photoisomerization property of bR for coherent population oscillations. Slow light in the liquid phase offers several advantages over solids or vapors for a variety of applications: (i) shorter lifetimes of the M state facilitate slow light at higher modulation frequencies, (ii) convection makes it possible to obtain large signal delays even at high input powers, and (iii) solution concentration is another convenient parameter to vary the signal delay over a wide range.

© 2007 Optical Society of America

OCIS Codes
(160.4890) Materials : Organic materials
(190.5330) Nonlinear optics : Photorefractive optics
(190.5530) Nonlinear optics : Pulse propagation and temporal solitons
(260.5210) Physical optics : Photoionization

ToC Category:
Nonlinear Optics

History
Original Manuscript: February 15, 2007
Revised Manuscript: April 19, 2007
Manuscript Accepted: April 26, 2007
Published: June 18, 2007

Citation
Chandra S. Yelleswarapu, Reji Philip, Francisco J. Aranda, Brian R. Kimball, and D. V. G. L. N. Rao, "Slow light in bacteriorhodopsin solution using coherent population oscillations," Opt. Lett. 32, 1788-1790 (2007)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-32-13-1788


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