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:
Oct. 31, 2023
Filed:
Feb. 13, 2019
University of Southampton, Southampton, GB;
Rokas Drevinskas, Southampton, GB;
Peter Kazansky, Southampton, GB;
Ausra Cerkauskaite, Southampton, GB;
University of Southampton, Southampton, GB;
Abstract
An optical element for modifying an incident laser beam propagated through the optical element from an input face to an output face via a geometric phase birefringent effect, the optical element comprising: a substrate of a transparent amorphous material with an input face and an opposite output face; and a structural modification in a volume of the substrate between the input face and output face comprising a plurality of randomly positioned nanostructures; wherein each nanostructure has a oblate spheroidal shape with an elliptical cross section in a plane parallel to the input face, the elliptical cross-section having a minor axis substantially not larger than 30 nm and a major axis greater than the minor axis, and each nanostructure having a length in a direction perpendicular to the input face which is substantially not larger than 100 nm.