Process for producing photonic crystals
First Claim
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1. A process comprising (a) providing a substantially inorganic photoreactive composition;
- (b) exposing, using a multibeam interference technique involving at least three beams, at least a portion of said photoreactive composition to radiation of appropriate wavelength, spatial distribution, and intensity to produce a two-dimensional or three-dimensional periodic pattern of reacted and non-reacted portions of said photoreactive composition; and
(c) removing said reacted portion or said non-reacted portion of said photoreactive composition to form interstitial void space.
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Abstract
A process for producing photonic crystals comprises (a) providing a substantially inorganic photoreactive composition; (b) exposing, using a multibeam interference technique involving at least three beams, at least a portion of the photoreactive composition to radiation of appropriate wavelength, spatial distribution, and intensity to produce a two-dimensional or three-dimensional periodic pattern of reacted and non-reacted portions of the photoreactive composition; and (c) removing the non-reacted portion or the reacted portion of the photoreactive composition to form interstitial void space.
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38 Claims
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1. A process comprising
(a) providing a substantially inorganic photoreactive composition; -
(b) exposing, using a multibeam interference technique involving at least three beams, at least a portion of said photoreactive composition to radiation of appropriate wavelength, spatial distribution, and intensity to produce a two-dimensional or three-dimensional periodic pattern of reacted and non-reacted portions of said photoreactive composition; and
(c) removing said reacted portion or said non-reacted portion of said photoreactive composition to form interstitial void space. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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38. A process comprising
(a) providing a substantially inorganic photoreactive composition comprising (1) at least one cationically reactive species, (2) a multiphoton photoinitiator system, and (3) optionally, a plurality of surface-treated silica particles; -
(b) exposing, using a multibeam interference technique involving at least four beams, at least a portion of said photoreactive composition to radiation of appropriate wavelength, spatial distribution, and intensity to produce a three-dimensional, submicron-scale, periodic pattern of reacted and non-reacted portions of said photoreactive composition; and
(c) removing said non-reacted portion of said photoreactive composition to form interstitial void space.
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Specification