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:
Feb. 21, 2012
Filed:
Apr. 21, 2009
Ken-ichiro Maki, Saitama, JP;
Takayuki Shibuya, Saitama, JP;
Chiko Otani, Saitama, JP;
Kodo Kawase, Saitama, JP;
Ken-ichiro Maki, Saitama, JP;
Takayuki Shibuya, Saitama, JP;
Chiko Otani, Saitama, JP;
Kodo Kawase, Saitama, JP;
Riken, Saitama, JP;
Abstract
To provide a terahertz beam scanning apparatus and method that can scan a terahertz beam at high speed over a wide angle. The terahertz beam scanning apparatus includes: a laser devicethat generates a first laser beamand a second laser beamhaving different wavelengths; a laser optical systemthat focuses the first laser beamand the second laser beamon a same common focal point; and a terahertz generatorthat is located at the common focal point and generates a terahertz beamby difference frequency mixing. The laser optical systemis configured to be capable of changing a relative incidence θbetween the first laser beam and the second laser beam to the terahertz generator.