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Optics Letters

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  • Editor: Anthony J. Campillo
  • Vol. 31, Iss. 18 — Sep. 15, 2006
  • pp: 2786–2788

Focusing of light by negative refraction in a photonic crystal slab superlens on silicon-on- insulator substrate

Takashi Matsumoto, Kun-Sun Eom, and Toshihiko Baba  »View Author Affiliations


Optics Letters, Vol. 31, Issue 18, pp. 2786-2788 (2006)
http://dx.doi.org/10.1364/OL.31.002786


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Abstract

We experimentally demonstrate the light focusing by negative refraction in a photonic crystal slab superlens at wavelengths λ of 1.26 1.42 μ m . The photonic crystal slab was fabricated on silicon-on-insulator substrate with an interface structure optimized for low reflection and diffraction losses. The light focusing in the photonic crystal slab was clearly observed through the intentional out-of-plane radiation or scattering of guided light in the slab. The minimum focused spot width was limited to 1.8 μ m ( 1.4 λ ) owing to aberrations. The focusing characteristics were in good agreement with those obtained from photonic band and finite-difference time-domain analyses.

© 2006 Optical Society of America

OCIS Codes
(230.3120) Optical devices : Integrated optics devices
(230.3990) Optical devices : Micro-optical devices

ToC Category:
Optical Devices

History
Original Manuscript: April 25, 2006
Revised Manuscript: June 30, 2006
Manuscript Accepted: July 6, 2006
Published: August 25, 2006

Citation
Takashi Matsumoto, Kun-Sun Eom, and Toshihiko Baba, "Focusing of light by negative refraction in a photonic crystal slab superlens on silicon-on-insulator substrate," Opt. Lett. 31, 2786-2788 (2006)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-31-18-2786


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