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.

Date of Patent:
Jan. 02, 2024

Filed:

Feb. 17, 2022
Applicants:

University of Maryland, College Park, College Park, MD (US);

Government of the United States of America, As Represented BY the Secretary of Commerce, Gaithersburg, MD (US);

Inventors:

Kartik Srinivasan, Rockville, MD (US);

Xiyuan Lu, Montgomery Village, MD (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/12 (2006.01); G02B 6/122 (2006.01); G02B 6/293 (2006.01); B82Y 20/00 (2011.01);
U.S. Cl.
CPC ...
G02B 6/29341 (2013.01); G02B 6/122 (2013.01); G02B 6/12007 (2013.01); G02B 6/29338 (2013.01); B82Y 20/00 (2013.01); G02F 2203/15 (2013.01);
Abstract

An optical cavity includes a ring defining an internal boundary and an external boundary, at least one of which is periodically modulated to define a gear-shaped configuration including a plurality of teeth, thereby enabling a plurality of slow-light modes. At least one physical defect may be defined within the periodically modulated internal boundary and/or external boundary to thereby enable at least one localized mode. At least one waveguide is coupled to the ring.


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