Readout contrast beyond diffraction limit by a slab of random nanostructures | Zendy

Tai Chi Chu | Zendy; Din Ping Tsai | Zendy; Wei-Chih Liu | Zendy

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Readout contrast beyond diffraction limit by a slab of random nanostructures

Author(s) -

Tai Chi Chu,

Din Ping Tsai,

Wei-Chih Liu

Publication year - 2007

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.15.000012

Subject(s) - optics , nanostructure , diffraction , fourier transform , fourier optics , physics , ptychography , field (mathematics) , physical optics , limit (mathematics) , materials science , nanotechnology , mathematics , mathematical analysis , quantum mechanics , pure mathematics

A simplified Fourier optics approach is applied to study how near-field optical disks retrieve evanescent signals through random nanostructure. The statistical properties of the random nanostructures are used to realize the general behavior of near-field optical disks. The mechanism of its super-resolution capability and an analytical expression of the readout contrast of near-field optical disks with random apertures are derived. The resolution of near-field optical disk is determined by the size of the random nanostructure.

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