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:
Jun. 16, 2020
Filed:
Aug. 16, 2018
Applicant:
The Government of the United States of America, As Represented BY the Secretary of the Navy, Arlington, VA (US);
Inventors:
Peter Finkel, Baltimore, MD (US);
Margo Staruch, Alexandria, VA (US);
Fletcher Blackmon, Plymouth, MA (US);
Lynn Antonelli, Cranston, RI (US);
Assignee:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 41/187 (2006.01); H01L 41/09 (2006.01); H02N 2/00 (2006.01); H04R 7/04 (2006.01); H01L 41/113 (2006.01); H01L 41/053 (2006.01); H04R 23/00 (2006.01); H04R 17/00 (2006.01); H04R 31/00 (2006.01); H04R 23/02 (2006.01); H04R 1/44 (2006.01); H01L 41/18 (2006.01);
U.S. Cl.
CPC ...
H01L 41/1875 (2013.01); H01L 41/0536 (2013.01); H01L 41/09 (2013.01); H01L 41/1132 (2013.01); H02N 2/009 (2013.01); H04R 7/04 (2013.01); H04R 17/00 (2013.01); H04R 23/008 (2013.01); H04R 23/02 (2013.01); H04R 31/00 (2013.01); H01L 41/18 (2013.01); H04R 1/44 (2013.01); H04R 23/002 (2013.01);
Abstract
Described herein is the use of large phase transformational strain in relaxor ferroelectric single crystals for broadband sound generation. The technique exploits the thermo-optical triggering and thus an opto-acoustic effect of ferroelectric phase transformation piezocrystals under mechanical bias conditions.