Yunqing Chen

US Patent:

20090074016, Mar 19, 2009

Filed:

Oct 18, 2006

Appl. No.:

11/582817

Inventors:

Orval Mamer - Senneville, CA
Alain Lesimple - Roxboro, CA
Keith H. Johnson - Cambridge MA, US
Yunqing Chen - Troy NY, US
Masashi Yamaguchi - Green Island NY, US
Matthew Price-Gallagher - Westmount, CA

International Classification:

H01S 3/10

US Classification:

372 22

Abstract:

Apparatus for Terahertz wave generation. An amplified laser generates a pulsed optical fundamental beam and a crystal passes the fundamental beam to generate a second harmonic beam of the fundamental beam. A lens focuses the mixed fundamental and second harmonic beams and a gas cell containing water vapor receives the focused beams and generates Terahertz waves.