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.

Date of Patent:
Apr. 05, 2016

Filed:

Apr. 07, 2015
Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventor:

Toshihiko Ouchi, Machida, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J 5/02 (2006.01); G02F 1/365 (2006.01); G02F 1/35 (2006.01); G02B 6/42 (2006.01); G02F 1/355 (2006.01);
U.S. Cl.
CPC ...
G02F 1/365 (2013.01); G02B 6/4296 (2013.01); G02F 1/353 (2013.01); G02F 1/3534 (2013.01); G02F 1/3551 (2013.01); G02F 2203/07 (2013.01); G02F 2203/13 (2013.01); G02F 2203/22 (2013.01); Y10T 156/10 (2015.01);
Abstract

A terahertz wave generation element is provided, which includes: an optical waveguide including a core of electro-optic crystal; an optical coupler for extracting a terahertz wave generated from the optical waveguide when light propagates in the optical waveguide to a space; and a reflecting layer disposed on the opposite side to the optical coupler with respect to the core of the optical waveguide, so as to reflect the generated terahertz wave. According to the element, it is possible to provide a generation element that can generate a relatively high intensity terahertz wave efficiently by photoexcitation or generate a terahertz wave having a relatively narrow pulse width, so as to flexibly control waveform shaping of the generated terahertz wave.


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