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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: Stephen A. Burns
  • Vol. 23, Iss. 12 — Dec. 1, 2006
  • pp: 3208–3216

Nonspecular effects on reflection from absorbing media at and around Brewster’s dip

H. M. Lai, S. W. Chan, and W. H. Wong  »View Author Affiliations


JOSA A, Vol. 23, Issue 12, pp. 3208-3216 (2006)
http://dx.doi.org/10.1364/JOSAA.23.003208


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Abstract

We show that, for a TM (or p-state) Gaussian beam incident onto an absorbing medium at and around Brewster’s dip, the reflected beam always remains Gaussian and undergoes a Goos–Hänchen-like (GH) shift, an angular shift, a focal shift, and a beam-waist modification, provided that the beam is sufficiently collimated that the third-order change of the (logarithmic) reflection coefficient can be ignored in the angular range of beam divergence. For weak absorption, not only are a large negative GH shift and an odd-functioned-like focal shift with greater magnitude found but also the angular shift, though small by itself, is shown to give an even larger lateral net shift at a distance beyond the Rayleigh range.

© 2006 Optical Society of America

OCIS Codes
(260.0260) Physical optics : Physical optics
(260.2110) Physical optics : Electromagnetic optics
(350.3950) Other areas of optics : Micro-optics

ToC Category:
Physical Optics

History
Original Manuscript: May 12, 2006
Revised Manuscript: June 5, 2006
Manuscript Accepted: June 11, 2006

Citation
H. M. Lai, S. W. Chan, and W. H. Wong, "Nonspecular effects on reflection from absorbing media at and around Brewster's dip," J. Opt. Soc. Am. A 23, 3208-3216 (2006)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-23-12-3208

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