Widely tunable coherent terahertz-wave generation using nonlinear optical effect

Kodo Kawase; Junichi Shikata; Manabu Sato; Tetsuo Taniuchi; Hiromasa Ito

doi:10.1002/(SICI)1520-6432(199807)81:7<10::AID-ECJB2>3.0.CO;2-6

Widely tunable coherent terahertz-wave generation using nonlinear optical effect

Kodo Kawase, Junichi Shikata, Manabu Sato, Tetsuo Taniuchi, Hiromasa Ito

Advanced Interdisciplinary Research Division

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

By using room-temperature parametric oscillation of LiNbO₃ pumped by a Q-switched Nd: YAG laser, a tunable terahertz-wave source in the range between 1 and 2 THz has been realized with a simple configuration. Since the terahertz wave is strongly absorbed inside the crystal and is affected by total internal reflection at the crystal edge, terahertz radiation outside the crystal has been difficult. A grating coupler and a prism coupler have resulted in wide tunability, high efficiency, and high spatial coherency. In this paper, the basic configuration of the optical source, various radiation characteristics, and the terahertz spectroscopic system using the present source are described.

Original language	English
Pages (from-to)	10-18
Number of pages	9
Journal	Electronics and Communications in Japan, Part II: Electronics (English translation of Denshi Tsushin Gakkai Ronbunshi)
Volume	81
Issue number	7
DOIs	https://doi.org/10.1002/(SICI)1520-6432(199807)81:7<10::AID-ECJB2>3.0.CO;2-6
Publication status	Published - 1998 Jul

Keywords

Nonlinear optics
Parametric
Terahertz
Tunable spectroscopy

ASJC Scopus subject areas

Physics and Astronomy(all)
Computer Networks and Communications
Electrical and Electronic Engineering

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10.1002/(SICI)1520-6432(199807)81:7<10::AID-ECJB2>3.0.CO;2-6

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Widely tunable coherent terahertz-wave generation using nonlinear optical effect. / Kawase, Kodo; Shikata, Junichi; Sato, Manabu; Taniuchi, Tetsuo; Ito, Hiromasa.

In: Electronics and Communications in Japan, Part II: Electronics (English translation of Denshi Tsushin Gakkai Ronbunshi), Vol. 81, No. 7, 07.1998, p. 10-18.

Research output: Contribution to journal › Article › peer-review

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abstract = "By using room-temperature parametric oscillation of LiNbO3 pumped by a Q-switched Nd: YAG laser, a tunable terahertz-wave source in the range between 1 and 2 THz has been realized with a simple configuration. Since the terahertz wave is strongly absorbed inside the crystal and is affected by total internal reflection at the crystal edge, terahertz radiation outside the crystal has been difficult. A grating coupler and a prism coupler have resulted in wide tunability, high efficiency, and high spatial coherency. In this paper, the basic configuration of the optical source, various radiation characteristics, and the terahertz spectroscopic system using the present source are described.",

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AU - Kawase, Kodo

AU - Shikata, Junichi

AU - Sato, Manabu

AU - Taniuchi, Tetsuo

AU - Ito, Hiromasa

PY - 1998/7

Y1 - 1998/7

N2 - By using room-temperature parametric oscillation of LiNbO3 pumped by a Q-switched Nd: YAG laser, a tunable terahertz-wave source in the range between 1 and 2 THz has been realized with a simple configuration. Since the terahertz wave is strongly absorbed inside the crystal and is affected by total internal reflection at the crystal edge, terahertz radiation outside the crystal has been difficult. A grating coupler and a prism coupler have resulted in wide tunability, high efficiency, and high spatial coherency. In this paper, the basic configuration of the optical source, various radiation characteristics, and the terahertz spectroscopic system using the present source are described.

AB - By using room-temperature parametric oscillation of LiNbO3 pumped by a Q-switched Nd: YAG laser, a tunable terahertz-wave source in the range between 1 and 2 THz has been realized with a simple configuration. Since the terahertz wave is strongly absorbed inside the crystal and is affected by total internal reflection at the crystal edge, terahertz radiation outside the crystal has been difficult. A grating coupler and a prism coupler have resulted in wide tunability, high efficiency, and high spatial coherency. In this paper, the basic configuration of the optical source, various radiation characteristics, and the terahertz spectroscopic system using the present source are described.

KW - Nonlinear optics

KW - Parametric

KW - Terahertz

KW - Tunable spectroscopy

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Widely tunable coherent terahertz-wave generation using nonlinear optical effect

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Keywords

ASJC Scopus subject areas

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