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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 22 — Nov. 4, 2013
  • pp: 26657–26662

Polycentric spatial focus of time-reversal electromagnetic field in rectangular conductor cavity

Yingming Chen and Bing-Zhong Wang  »View Author Affiliations


Optics Express, Vol. 21, Issue 22, pp. 26657-26662 (2013)
http://dx.doi.org/10.1364/OE.21.026657


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Abstract

Polycentric focus effect of time-reversal (TR) electromagnetic field is found in a rectangular resonant cavity. Theoretical deduction shows that the effect is due to the mirror symmetry of the cavity and the maximum number of focus points is 27 including 1 main focus point and 26 secondary focus points. A case of 6 focus points is calculated, in which the numerical results are consistent with the theoretical predictions, and particularly the 5 secondary focus points have directly resulted in inaccurate imaging and pulse signal interception.

© 2013 Optical Society of America

OCIS Codes
(030.1670) Coherence and statistical optics : Coherent optical effects
(070.5040) Fourier optics and signal processing : Phase conjugation
(260.5740) Physical optics : Resonance
(260.5950) Physical optics : Self-focusing
(080.5084) Geometric optics : Phase space methods of analysis
(080.6755) Geometric optics : Systems with special symmetry
(110.3200) Imaging systems : Inverse scattering

ToC Category:
Physical Optics

History
Original Manuscript: July 17, 2013
Revised Manuscript: October 11, 2013
Manuscript Accepted: October 21, 2013
Published: October 29, 2013

Citation
Yingming Chen and Bing-Zhong Wang, "Polycentric spatial focus of time-reversal electromagnetic field in rectangular conductor cavity," Opt. Express 21, 26657-26662 (2013)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-21-22-26657


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