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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 51, Iss. 23 — Aug. 10, 2012
  • pp: 5601–5608

Enhanced backscattering for infrared detection using photonic crystal based flat lens

Jonathan Oden, Maxence Hofman, Xavier Mélique, Didier Lippens, and Olivier Vanbésien  »View Author Affiliations


Applied Optics, Vol. 51, Issue 23, pp. 5601-5608 (2012)
http://dx.doi.org/10.1364/AO.51.005601


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Abstract

An n=1 flat lens based on photonic crystal semiconductor technology is evaluated for infrared detection purposes. The idea consists in exploiting the backscattered waves of an incident plane wave impinging on a target placed in the focal region of a flat lens. It is shown that subwavelength detection of micronic dielectric targets can be obtained at 1.55 μm using the double focus of reflected waves induced by negative refraction. Complex relations among the intrinsic nature, the shape and size of the target, and detection efficiency are interpreted in terms of target eigenmode excitation. Reflectivity is modulated by the intrinsic mode nature, transverse, circular, or longitudinal, with an enhancement of the detection sensitivity in the case of whispering-gallery modes. It is believed that such a study paves the way to the definition of original noninvasive infrared sensors.

© 2012 Optical Society of America

OCIS Codes
(080.2710) Geometric optics : Inhomogeneous optical media
(170.6960) Medical optics and biotechnology : Tomography
(220.2740) Optical design and fabrication : Geometric optical design
(230.5298) Optical devices : Photonic crystals

ToC Category:
Optical Devices

History
Original Manuscript: April 2, 2012
Revised Manuscript: May 21, 2012
Manuscript Accepted: June 28, 2012
Published: August 2, 2012

Citation
Jonathan Oden, Maxence Hofman, Xavier Mélique, Didier Lippens, and Olivier Vanbésien, "Enhanced backscattering for infrared detection using photonic crystal based flat lens," Appl. Opt. 51, 5601-5608 (2012)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-51-23-5601

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