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:
Nov. 30, 2021
Filed:
Apr. 29, 2019
Applicant:
International Business Machines Corporation, Armonk, NY (US);
Inventors:
Abram L. Falk, Port Chester, NY (US);
Jessie C. Rosenberg, Mount Vernon, NY (US);
Damon B. Farmer, White Plains, NY (US);
William Green, Irvington, NY (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 26/06 (2006.01); G02B 26/02 (2006.01); G02B 6/02 (2006.01);
U.S. Cl.
CPC ...
G02B 26/06 (2013.01); G02B 6/02033 (2013.01); G02B 26/02 (2013.01);
Abstract
A spatial light modulator (SLM) is provided that includes an optical resonator (i.e., pixel) having nanoscale size. The optical resonator having nanoscale size includes a phase-change material such as, for example, a GeSbTe alloy, sandwiched between silicon nitride cladding layers. The phase-change material can undergo a crystalline-to-amorphous phase transition which is characterized by a large change in optical properties of the resonator.