Thin and thick cross shaped metal grids

Document Type

Article

Publication Date

1-1-1999

Abstract

Thin cross shaped metal grids have been studied in the infrared for wavelengths smaller and larger than the periodicity constant. Resonance frequencies of thin grids, calculated using rigorous computational methods, agree well with experimental data and empirical formulas. Resonance wavelength and the Wood anomaly of metal meshes on silicon substrates show frequency shifts to longer wavelength, with shifts smaller than the refractive index for the resonance and equal to the refractive index for the Wood anomaly. An empirical formula for the wavelength of the `thickness' peak of free standing thick cross shaped grids is shown and agrees very well with experimental and computational results.

Identifier

0343962237 (Scopus)

Publication Title

Infrared Physics and Technology

External Full Text Location

https://doi.org/10.1016/S1350-4495(99)00031-6

ISSN

13504495

First Page

475

Last Page

485

Issue

6

Volume

40

Fund Ref

State of New Jersey Commission on Science and Technology

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