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. 10, 1987
Filed:
Mar. 18, 1985
Applicant:
Inventor:
Mehmet Rona, Belmont, MA (US);
Assignee:
Arthur D. Little, Inc., Cambridge, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S / ;
U.S. Cl.
CPC ...
372-4 ; 357 17 ; 357 231 ; 372 20 ; 372 44 ; 372 96 ;
Abstract
The disclosed source of coherent radiation is of the type adapted to provide an inversion layer of electrons. The preferred embodiment comprises a grated MOSFET having gallium arsenide or indium antimonide substrate so as to provide a source which is (1) operable at room temperatures, and (2) self-exciting in response to predetermined, substantially constant DC current levels of gate voltage and source-drain voltage.