THz-wave parametric oscillator with a surface-emitted configuration | Zendy

Tomofumi Ikari | Zendy; Xianbin Zhang | Zendy; Hiroaki Minamide | Zendy; Hiromasa Ito | Zendy

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THz-wave parametric oscillator with a surface-emitted configuration

Author(s) -

Tomofumi Ikari,

Xianbin Zhang,

Hiroaki Minamide,

Hiromasa Ito

Publication year - 2006

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.14.001604

Subject(s) - terahertz radiation , optics , optical parametric oscillator , parametric oscillator , surface wave , perpendicular , physics , crystal (programming language) , materials science , laser , geometry , mathematics , computer science , programming language

We propose a surface-emitted cavity configuration for a terahertz-wave parametric oscillator that allows THz wave emission perpendicular to the crystal surface without any output coupler. The oscillating idler and pump waves are reflected at the surface of a nonlinear crystal in a single resonance cavity, satisfying the noncollinear phasematching condition. The radiated THz wave has a Gaussian profile. The measured beam quality factors (M(2)) were 1.15 and 1.25 in the horizontal and vertical directions, respectively. The measured tunable range was 0.8-2.74 THz. A test of transmission imaging using a test pattern was demonstrated.

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