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. 17, 2025
Filed:
Jun. 01, 2020
The University of Tokyo, Tokyo, JP;
Oxide Corporation, Yamanashi, JP;
Shik Shin, Tokyo, JP;
Toshiyuki Taniuchi, Tokyo, JP;
Shinichi Imai, Yamanashi, JP;
Kazuo Fujiura, Yamanashi, JP;
Yasunori Furukawa, Yamanashi, JP;
The University of Tokyo, Tokyo, JP;
Oxide Corporation, Yamanashi, JP;
Abstract
A laser light source for a photoemission electron microscope for emitting a coherent light includes: a first laser light source configured to emit a continuous wave coherent light; an optical resonator including an optical path in which the continuous wave coherent light is configured to circulate and including a non-linear optical element disposed on the optical path; and a quasi-continuous wave light source configured to emit a quasi-continuous wave coherent light having a wavelength shorter than that of the continuous wave coherent light and having a near rectangular output waveform. When the quasi-continuous wave coherent light is incident on the non-linear optical element from outside the optical resonator while the continuous wave coherent light is entering the optical resonator to circulate in the optical path, the coherent light having a wavelength shorter than that of the quasi-continuous wave coherent light is emitted from the non-linear optical element.