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:
Mar. 16, 1993
Filed:
Nov. 01, 1991
Applicant:
Inventor:
Paul Voisin, Paris, FR;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ; H01L / ; H01L / ;
U.S. Cl.
CPC ...
359245 ; 359248 ; 257 12 ; 257431 ;
Abstract
An electro-optical component defined by a substrate which is coated in the growth axis direction with a periodic stack of semiconductor layers suitable for defining a superlattice whose quantum wells are fairly strongly coupled together. By applying a control electric field to the superlattice parallel to its growth axis, the optical absorption threshold is varied, and the direction of variation is towards higher energies.