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. 15, 2025
Filed:
Jun. 10, 2021
Gamdan Optics Inc., San Jose, CA (US);
University of North Carolina AT Charlotte, Charlotte, NC (US);
Menelaos K Poutous, Harrisburg, NC (US);
Hui Cai, San Jose, CA (US);
Praneeth Gadamsetti, Charlotte, NC (US);
GAMDAN OPTICS, INC., San Jose, CA (US);
THE UNIVERSITY OF NORTH CAROLINA AT CHARLOTTE, Charlotte, NC (US);
Abstract
A non-linear optical crystal, such as a Lithium triborate (LiBOor LBO) crystal, includes a first nanostructured optical surface including distributed pillars and gaps having random heights and cross sections to provide anti-reflection control and scatter control of first light incident on the first structured optical surface. The LBO crystal has an anti-reflective random structured optical surface formed by selective substitution of the surface species Boron-pentoxide (BO) by Lithium Fluoride (LiF), resulting in a depletion layer with low reflectivity and low reflective scatter in the visible, ultraviolet (UV), and near infrared (IR) bands. The LBO crystal with the anti-reflective structured optical surface may be a monolithic structure and thus need not include a coating of an anti-reflective (AR) material, although the LBO crystal may include an optical surface coated by an AR material. The pillars and gaps may be randomly distributed or periodically distributed on the optical surface.