Optical Memory and Neural Networks

, Volume 19, Issue 4, pp 273–278 | Cite as

Subwavelength focusing with a Mikaelian planar lens

This Issue is Dedicated to Memory of Academician Andrey L. Mikaelyan

Abstract

We show that an arbitrary TE-polarized light field propagating in a Mikaelian secant (MS) planar lens can be decomposed into modes described by the Jacobi polynomials. This light field will be periodically repeated at the Talbot length and focused with a half-Talbot length period. An analytical expression for the width of the focal spot has been obtained. The MS lens allows obtaining a focal spot of width equal to the diffraction limit in the medium. The MS lens has been fabricated as a planar photonic crystal lens in a silicon film for wavelength 1.55 μm, and its focusing properties have been demonstrated by visible light (532 nm) interference fringes.

Keywords

Mikaelian secant lens SELFOC—Mikaelian waveguide waveguide modes Jacobi polynomials photonic crystal lens 

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Copyright information

© Allerton Press, Inc. 2010

Authors and Affiliations

  • V. V. Kotlyar
    • 1
    • 2
  • A. A. Kovalev
    • 1
    • 2
  • V. A. Soifer
    • 1
    • 2
  1. 1.Laser Measurements LaboratoryImage Processing Systems Institute of the Russian Academy of SciencesSamaraRussia
  2. 2.Technical Cybernetics SubdepartmentS.P. Korolyev Samara State Aerospace UniversitySamaraRussia

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