Title

Multiline two-dimensional guided-mode resonant filters

Authors

Authors

S. Boonruang; A. Greenwell;M. G. Moharam

Comments

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Abbreviated Journal Title

Appl. Optics

Keywords

COUPLED-WAVE ANALYSIS; OPTICAL FILTERS; GRATINGS; IMPLEMENTATION; REFLECTION; ANOMALIES; Optics

Abstract

A novel multiline filter using a two-dimensional guided-mode resonant (GMR) filter is proposed. The filter concept utilizes the multiple planes of diffraction produced by the two-dimensional grating. Multiple resonances are obtained by matching the guided modes in the different planes of diffraction to different wavelengths. It is shown that the location and the separation between resonances can be specifically controlled by modifying the periodicity of the grating and the other physical dimensions of the structure. This is in contrast to the one-dimensional GMR filters where the location of the resonances is material dependent. Two-line reflection filter designs with spectral linewidths less than 1 nm and a controllable spectral separation of up to 23% of the short resonance wavelength are presented using rectangular-grid grating GMR structures. Three-line filters are designed in hexagonal-grid grating GMR structures with two independently controllable resonance locations. (C) 2006 Optical Society of America.

Journal Title

Applied Optics

Volume

45

Issue/Number

22

Publication Date

1-1-2006

Document Type

Article

Language

English

First Page

5740

Last Page

5747

WOS Identifier

WOS:000239411400032

ISSN

1559-128X

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