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, 1976
Filed:
Oct. 11, 1973
Applicant:
Inventors:
Maurus Tacke, Ratingen, DT;
Reinhard Ulrich, Leonberg-Silberberg, DT;
Assignee:
Max-Planck-Gesellschaft zur Forderung der Wissenschaften e.V., Gottingen, DT;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ; G02B / ; H01P / ;
U.S. Cl.
CPC ...
350 / ; 333 / ;
Abstract
A waveguide for submillimeter and infrared wavelength range electromagnetic radiation comprises a metal grating with a grating constant criterion: ##EQU1## BEING GREATER THAN (2/.lambda.).sup.2, WHERE .lambda. IS WAVELENGTH OF AN ELECTROMAGNETIC WAVE PROPAGATING FREELY IN THE SURROUNDING MEDIUM AND G.sub.X, G.sub.Y ARE GRATING CONSTANTS IN ORTHOGONAL DIRECTIONS. The constants g.sub.x, g.sub.y may be equal to each other or different.