Terahertz wave generation from GaP with continuous wave and pulse pumping in the 1-1.2 μm region

Tadao Tanabe, Jun Ichi Nishizawa, Ken Suto, Yusuke Watanabe, Tetsuo Sasaki, Yutaka Oyama

研究成果: Article査読

3 被引用数 (Scopus)

抄録

The terahertz (THz) region, which lies between the microwave and infrared regions, offers a wealth of untapped potential. We generated widely frequency-tunable coherent THz waves from GaP crystal pumped using continuous-wave (CW) semiconductor lasers and compared it with pulse pumping using Q-switched high-power lasers at 1-1.2 μm. THz wave generation was based on difference-frequency generation via the excitation of phonon-polaritons in GaP. CW THz waves were generated from GaP by enhancing the power density of the pumping light from semiconductor lasers. The power and phase-matched condition for THz wave generation are discussed with respect to the pumping method compared to pulse pumping. Semiconductor lasers have light power stability with a narrow linewidth. Therefore, CW THz waves can be used as a light source in high-resolution THz spectroscopy, as well as in multichannel communication.

本文言語English
ページ(範囲)980-983
ページ数4
ジャーナルMaterials Transactions
48
5
DOI
出版ステータスPublished - 2007 5
外部発表はい

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

フィンガープリント

「Terahertz wave generation from GaP with continuous wave and pulse pumping in the 1-1.2 μm region」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル