Elliptically polarized THz-wave generation from GaP-THz planar waveguide via collinear phase-matched difference frequency mixing | Zendy

Kyosuke Saito | Zendy; Tadao Tanabe | Zendy; Yutaka Oyama | Zendy

Open Access

Elliptically polarized THz-wave generation from GaP-THz planar waveguide via collinear phase-matched difference frequency mixing

Author(s) -

Kyosuke Saito,

Tadao Tanabe,

Yutaka Oyama

Publication year - 2012

Publication title -

optics express

Language(s) - Uncategorized

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.20.026082

Subject(s) - terahertz radiation , optics , polarization (electrochemistry) , waveguide , planar , elliptical polarization , physics , materials science , linear polarization , laser , chemistry , computer graphics (images) , computer science

We carried out terahertz (THz)-wave generation from the GaP planar waveguides under collinear phase-matched difference-frequency mixing of two near-infrared sources. TE- and TM-mode of THz-waves were generated simultaneously by adjusting the polarization direction of two incident infrared sources. The phase shift between TE- and TM-mode of THz-wave in the waveguide was dependent on the waveguide length and contributed to the generation of the elliptical polarized THz-wave. The ellipticity of generated THz-wave increased as waveguide length increased. We indicated the possibility of control of rotational direction of elliptical polarization of emitted THz wave.

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