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. 03, 2009
Filed:
Jul. 08, 2005
Irina Puscasu, Somerville, MA (US);
Martin U. Pralle, Wayland, MA (US);
James T. Daly, Mansfield, MA (US);
Mark P. Mcneal, Marlborough, MA (US);
Edward A. Johnson, Bedford, MA (US);
Irina Puscasu, Somerville, MA (US);
Martin U. Pralle, Wayland, MA (US);
James T. Daly, Mansfield, MA (US);
Mark P. McNeal, Marlborough, MA (US);
Edward A. Johnson, Bedford, MA (US);
Ion Optics, Inc., Billerica, MA (US);
Abstract
An infrared emitter, which utilizes a photonic crystal (PC) structure to produce electromagnetic emissions with a narrow band of wavelengths, includes a semiconductor material layer, a dielectric material layer overlaying the semiconductor material layer, and a metallic material layer having an inner side overlaying the dielectric material layer. The semiconductor material layer is capable of being coupled to an energy source for introducing energy to the semiconductor material layer. An array of surface features are defined in the device in a periodic manner or quasi-periodic. The emitter device is adapted to emit electromagnetic energy having spectral characteristics determined by parameters of the periodically distributed surface features, the parameters including shape, size, depth, distribution geometry, periodicity, material properties and defects.