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:
Sep. 13, 2022
Filed:
Nov. 15, 2016
Kent State University, Kent, OH (US);
Jie Xiang, Kent, OH (US);
Andrii Varanytsia, Kent, OH (US);
Fred Minkowski, Kent, OH (US);
Oleg D. Lavrentovich, Kent, OH (US);
Peter Palffy-Muhoray, Kent, OH (US);
Corrie T. Imrie, Aberdeen, GB;
Daniel E. Paterson, Aberdeen, GB;
John M. Storey, Aberdeen, GB;
Kent State University, Kent, OH (US);
The University Court of the University of Aberdeen, Aberdeen, GB;
Abstract
A lasing device includes an active layer comprising a cholesteric liquid crystal material and a laser dye, and a liquid crystal cell including spaced apart substrates defining a cell gap in which the active layer is disposed. The substrates include electrodes arranged to bias the active layer into an oblique helicoidal (Ch) state. At least one substrate of the liquid crystal cell is optically transparent for a lasing wavelength range of the device.