Subwavelength focusing with a Mikaelian planar lens
作者： V. V. Kotlyar , A. A. Kovalev , V. A. Soifer
DOI: 10.3103/S1060992X1004003X
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摘要: 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 will periodically repeated at Talbot length and focused with half-Talbot period. An analytical expression for width of focal spot has been obtained. The MS allows obtaining equal to diffraction limit medium. fabricated as photonic crystal silicon film wavelength 1.55 μm, its focusing properties have demonstrated visible (532 nm) interference fringes.
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