Diffraction device using photonic crystal

Details Diffraction device using photonic crystal Diffraction device using photonic crystal

2005-11-22

2005-11-22

Font, Frank G. (Department: 2833)

Optical waveguides

Directional optical modulation within an optical waveguide

Electro-optic

C385S037000, C385S047000

Reexamination Certificate

active

06968096

ABSTRACT:
A diffraction device using a photonic crystal includes a diffraction grating, which has a period and periodically divides electromagnetic waves, and an input medium and an output medium, which contact the diffraction grating. The input medium is air, and the output medium is a one-dimensional layer having a periodic characteristic in a single direction (Z axis direction). The photonic crystal is formed by a periodic multilayer film having a period corresponding to the sum of the thickness of a first substance and the thickness of a second substance, which are superimposed. The diffraction device drastically decreases the resolution corresponding to the difference of the separated frequencies.

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Miura, Toru et al., “Propagation Characteristics of Hollow Optical Waveguide for Temperature-Insensitive Photonic Integrated Circuits,”8thMicrooptics Conference(MOC '01), Osaka, Japan, Oct. 24-26, 2001, pp. 52-55.

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