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

Kyosuke Saito, Tadao Tanabe, Yutaka Oyama

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)26082-26088
Number of pages7
JournalOptics Express
Volume20
Issue number23
DOIs
Publication statusPublished - 2012 Nov 5
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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