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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 51, Iss. 27 — Sep. 20, 2012
  • pp: 6480–6483

Angular amplification by a diffraction grating for chiro-optical measurements

Rajitha Papukutty Rajan and Ambarish Ghosh  »View Author Affiliations


Applied Optics, Vol. 51, Issue 27, pp. 6480-6483 (2012)
http://dx.doi.org/10.1364/AO.51.006480


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Abstract

The angles at which a light beam gets diffracted by a grating depend strongly on the direction of incidence for diffraction angles close to a right angle. Accordingly, it is possible to amplify small beam deflections by placing a grating at an optimal orientation to the light path. We use this principle to amplify small beam deviations arising out of a light beam refracting at the interface of an optically active medium, and demonstrate a new technique of enhancing the limit of detection of chiro-optical measurements.

© 2012 Optical Society of America

OCIS Codes
(050.1950) Diffraction and gratings : Diffraction gratings
(120.3930) Instrumentation, measurement, and metrology : Metrological instrumentation
(120.5410) Instrumentation, measurement, and metrology : Polarimetry
(120.5710) Instrumentation, measurement, and metrology : Refraction
(260.1440) Physical optics : Birefringence
(160.1585) Materials : Chiral media

ToC Category:
Diffraction and Gratings

History
Original Manuscript: July 2, 2012
Revised Manuscript: August 15, 2012
Manuscript Accepted: August 20, 2012
Published: September 11, 2012

Citation
Rajitha Papukutty Rajan and Ambarish Ghosh, "Angular amplification by a diffraction grating for chiro-optical measurements," Appl. Opt. 51, 6480-6483 (2012)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-51-27-6480

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