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. 12, 1990
Filed:
Oct. 31, 1988
Applicant:
Inventors:
Jeffrey Bokor, Holmdel, NJ (US);
Anthony M Johnson, Freehold, NJ (US);
Assignee:
AT&T Bell Laboratories, Murray Hill, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
2502 / ; 357 30 ;
Abstract
A vacuum photodetector has been fabricated in a coplanar microstrip transmission line geometry to achieve high quantum efficiency and picosecond response time. The coplanar microstrip transmission lines, photocathode and anode, are mounted on an insulating substrate such as sapphire and are electrically biased with respect to each other. Photodetection occurs by classical photoelectric emission as a result of impinging photon energies exceeding the work function of the photocathode.