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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Editor: Franco Gori
  • Vol. 30, Iss. 4 — Apr. 1, 2013
  • pp: 741–748

Interferometric method to measure the Goos–Hänchen shift

Chandravati Prajapati, Dilip Ranganathan, and Joby Joseph  »View Author Affiliations


JOSA A, Vol. 30, Issue 4, pp. 741-748 (2013)
http://dx.doi.org/10.1364/JOSAA.30.000741


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Abstract

We propose and demonstrate an interferometric method to measure the Goos–Hänchen (GH) shift, which is based on observing the interference between p- and s-polarized beams. In our method both p- and s-polarized beams are observed simultaneously and across the entire beam profile. To demonstrate our method, we measured the GH shift of aluminum (Al) and glass at different values of the incidence angle ranging from 20° to 70°, with a helium–neon laser as source. We compared the experimental result with theoretical calculations and found a good agreement between them. Our method also enables us to measure the GH shift at any point across the entire beam profile, for arbitrary beam profiles. This is not possible with the methods currently in use. We presented the observed values for the Gaussian mode used, which enables us to find the relative shifts between the p and s components at various points on the incident profile after reflection.

© 2013 Optical Society of America

OCIS Codes
(050.5080) Diffraction and gratings : Phase shift
(260.3160) Physical optics : Interference
(260.5430) Physical optics : Polarization

ToC Category:
Physical Optics

History
Original Manuscript: November 9, 2012
Revised Manuscript: December 24, 2012
Manuscript Accepted: March 1, 2013
Published: March 27, 2013

Citation
Chandravati Prajapati, Dilip Ranganathan, and Joby Joseph, "Interferometric method to measure the Goos–Hänchen shift," J. Opt. Soc. Am. A 30, 741-748 (2013)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-30-4-741

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