Terahertz-wave generation by GaP rib waveguides via collinear phase-matched difference-frequency mixing of near-infrared lasers

Kyosuke Saito, Tadao Tanabe, Yutaka Oyama, Ken Suto, Jun Ichi Nishizawa

研究成果: Article

19 引用 (Scopus)

抜粋

We constructed rib waveguides from GaP material using an inductively coupled plasma reactive ion etching technique based on Ar/ Cl2 gas application. We obtained a waveguide with a rib height of 200 μm. Terahertz-wave generation from the GaP-crystal rib waveguides was demonstrated via collinear phase-matched difference-frequency mixing of near-infrared light. The terahertz output peak corresponding to the fundamental modes appeared around 0.75 THz for a 1-mm-wide rib waveguide. The position of the fundamental mode shifted to 1.32 THz for a 200-μm -wide waveguide, which is attributable to the two-dimensional confinement of the terahertz waves in the waveguide. The conversion efficiency was enhanced in the rib waveguide compared to that in both slab waveguides and bulk GaP crystals.

元の言語English
記事番号063102
ジャーナルJournal of Applied Physics
105
発行部数6
DOI
出版物ステータスPublished - 2009
外部発表Yes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

フィンガープリント Terahertz-wave generation by GaP rib waveguides via collinear phase-matched difference-frequency mixing of near-infrared lasers' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

  • これを引用