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:
Dec. 23, 2003
Filed:
Dec. 10, 2001
William A. Shull, Aptos, CA (US);
Zygo Corporation, Middlefield, CT (US);
Abstract
The invention features a nonlinear optical crystal assembly and a gas mixture that surrounds the nonlinear crystal. The gas mixture reduces photochemical degradation of the nonlinear crystal caused by exposure of the nonlinear crystal to a high power light source. For example, the nonlinear crystal may be a borate-based nonlinear crystal such as BBO and the gas mixture may include a hydrogen and oxygen to repair broken bonds in boron-oxygen rings of the borate-based crystal. The assembly may be incorporated into a light source, and applications requiring such a light source, such as, e.g., applications requiring ultraviolet light. Furthermore, the nonlinear crystal assembly may be placed inside an optical cavity.