The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 16, 2004
Filed:
Mar. 27, 2001
Kyu Takada, Otsu, JP;
Minolta Co., Ltd., Osaka, JP;
Abstract
A photonic crystal device including a method of forming the photonic crystal device is provided wherein the photonic crystal device comprises a first medium having a thickness and periodically defining a plurality of periodically spaced concave portions. The concave portions having a depth less than the thickness of the first medium. A second medium fills the concave portions. One layer of the device, including both the first and second medium, acts as an optical waveguide layer, or photonic crystal. Another layer is at least partially formed from the first medium, such that the first and second layers share a common medium. A method of forming the photonic crystal device including the steps of applying a resist layer to a first medium, removing portions of the resist layer and corresponding portions of the first medium to form vacancies, and filling the vacancies with a second medium.