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:
Jul. 31, 2007
Filed:
Aug. 23, 2005
Shoji Akiyama, Gunma, JP;
Ivan Celanovic, Cambridge, MA (US);
Natalija Z. Jovanovic, Cambridge, MA (US);
Francis O'sullivan, Cambridge, MA (US);
Kazumi Wada, Lexington, MA (US);
Shoji Akiyama, Gunma, JP;
Ivan Celanovic, Cambridge, MA (US);
Natalija Z. Jovanovic, Cambridge, MA (US);
Francis O'Sullivan, Cambridge, MA (US);
Kazumi Wada, Lexington, MA (US);
Massachusetts Institute of Technology, Cambridge, MA (US);
Abstract
Light transmission is maximized through the pass band of a photonic bandgap (PBG) crystal (having alternating high- and low-index material) while preserving high reflection for stop band. An anti-reflective coating (ARC) is used to coat the PBG crystal wherein the ARC material has a refractive index of n=(n×n)and thickness around λc/8 where λc is center wavelength.