Blazing evanescent grating orders: a spectral approach to beating the Rayleigh limit

C. J. Handmer; C. De Martijn Sterke; R. C. McPhedran; L. C. Borten; M. J. Steel; A. Rahmani

doi:10.1364/OL.35.002846

Blazing evanescent grating orders: a spectral approach to beating the Rayleigh limit

C. J. Handmer, C. De Martijn Sterke, R. C. McPhedran, L. C. Borten, M. J. Steel, A. Rahmani

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

We develop a way to enhance the amplitudes of the nonpropagating evanescent orders of resonant dielectric gratings. We use this blazing to design gratings with spectra tailored to generate steerable sub-Rayleigh field concentrations on a surface. We investigate the enhancement and customization of evanescent fields necessary to create a virtual and passive scanning probe with no moving parts. Spot size can be decreased 1 order of magnitude below the free-space Rayleigh limit.

Original language	English
Pages (from-to)	2846-2848
Number of pages	3
Journal	Optics Letters
Volume	35
Issue number	17
DOIs	https://doi.org/10.1364/OL.35.002846
Publication status	Published - 1 Sept 2010

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abstract = "We develop a way to enhance the amplitudes of the nonpropagating evanescent orders of resonant dielectric gratings. We use this blazing to design gratings with spectra tailored to generate steerable sub-Rayleigh field concentrations on a surface. We investigate the enhancement and customization of evanescent fields necessary to create a virtual and passive scanning probe with no moving parts. Spot size can be decreased 1 order of magnitude below the free-space Rayleigh limit.",

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AU - Steel, M. J.

AU - Rahmani, A.

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AB - We develop a way to enhance the amplitudes of the nonpropagating evanescent orders of resonant dielectric gratings. We use this blazing to design gratings with spectra tailored to generate steerable sub-Rayleigh field concentrations on a surface. We investigate the enhancement and customization of evanescent fields necessary to create a virtual and passive scanning probe with no moving parts. Spot size can be decreased 1 order of magnitude below the free-space Rayleigh limit.

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Blazing evanescent grating orders: a spectral approach to beating the Rayleigh limit

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