Continuous-wave frequency-tunable terahertz-wave generation from GaP

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

doi:10.1109/LPT.2006.882278

Continuous-wave frequency-tunable terahertz-wave generation from GaP

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

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

42 Citations (Scopus)

Abstract

Continuous-wave (CW) single-frequency terahertz (THz) waves were generated using difference-frequency generation via excitation of phonon-polaritons in GaP. The two pump sources were an external cavity laser diode (LD) and an LD-pumped Nd :YAG laser. The power density of the latter beam was enhanced by using a ytterbium-doped fiber amplifier. The two incident beams were focused to near the wavelength of THz waves. This optical alignment enabled us to generate frequency-tunable CW THz waves in the 0.69-2.74 THz range. With a fixed angle between the pump beams, we obtained a frequency bandwidth as large as 600 GHz.

Original language	English
Pages (from-to)	2008-2010
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	18
Issue number	19
DOIs	https://doi.org/10.1109/LPT.2006.882278
Publication status	Published - 2006 Oct 1
Externally published	Yes

Keywords

Continuous-wave (CW)
Frequency-tunable
GaP
Phase matching
Phonon-polariton
Terahertz (THz)-wave

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering

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10.1109/LPT.2006.882278

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title = "Continuous-wave frequency-tunable terahertz-wave generation from GaP",

abstract = "Continuous-wave (CW) single-frequency terahertz (THz) waves were generated using difference-frequency generation via excitation of phonon-polaritons in GaP. The two pump sources were an external cavity laser diode (LD) and an LD-pumped Nd :YAG laser. The power density of the latter beam was enhanced by using a ytterbium-doped fiber amplifier. The two incident beams were focused to near the wavelength of THz waves. This optical alignment enabled us to generate frequency-tunable CW THz waves in the 0.69-2.74 THz range. With a fixed angle between the pump beams, we obtained a frequency bandwidth as large as 600 GHz.",

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note = "Funding Information: Manuscript received May 15, 2006; revised June 30, 2006. This work was supported by a Grant-in-Aid for Creative Scientific Research (13GS0002) from the Japan Society for the Promotion of Science. J. Nishizawa, K. Suto, and T. Sasaki are with the Semiconductor Research Institute, Sendai 980-0845, Japan. T. Tanabe, Y. Watanabe, and Y. Oyama are with the Department of Materials Science, Graduate School of Engineering, Tohoku University, Sendai 980-8579, Japan (e-mail: tanabet@material.tohoku.ac.jp). Digital Object Identifier 10.1109/LPT.2006.882278",

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AU - Nishizawa, Jun Ichi

AU - Tanabe, Tadao

AU - Suto, Ken

AU - Watanabe, Yusuke

AU - Sasaki, Tetsuo

AU - Oyama, Yutaka

N1 - Funding Information: Manuscript received May 15, 2006; revised June 30, 2006. This work was supported by a Grant-in-Aid for Creative Scientific Research (13GS0002) from the Japan Society for the Promotion of Science. J. Nishizawa, K. Suto, and T. Sasaki are with the Semiconductor Research Institute, Sendai 980-0845, Japan. T. Tanabe, Y. Watanabe, and Y. Oyama are with the Department of Materials Science, Graduate School of Engineering, Tohoku University, Sendai 980-8579, Japan (e-mail: tanabet@material.tohoku.ac.jp). Digital Object Identifier 10.1109/LPT.2006.882278

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N2 - Continuous-wave (CW) single-frequency terahertz (THz) waves were generated using difference-frequency generation via excitation of phonon-polaritons in GaP. The two pump sources were an external cavity laser diode (LD) and an LD-pumped Nd :YAG laser. The power density of the latter beam was enhanced by using a ytterbium-doped fiber amplifier. The two incident beams were focused to near the wavelength of THz waves. This optical alignment enabled us to generate frequency-tunable CW THz waves in the 0.69-2.74 THz range. With a fixed angle between the pump beams, we obtained a frequency bandwidth as large as 600 GHz.

AB - Continuous-wave (CW) single-frequency terahertz (THz) waves were generated using difference-frequency generation via excitation of phonon-polaritons in GaP. The two pump sources were an external cavity laser diode (LD) and an LD-pumped Nd :YAG laser. The power density of the latter beam was enhanced by using a ytterbium-doped fiber amplifier. The two incident beams were focused to near the wavelength of THz waves. This optical alignment enabled us to generate frequency-tunable CW THz waves in the 0.69-2.74 THz range. With a fixed angle between the pump beams, we obtained a frequency bandwidth as large as 600 GHz.

KW - Continuous-wave (CW)

KW - Frequency-tunable

KW - GaP

KW - Phase matching

KW - Phonon-polariton

KW - Terahertz (THz)-wave

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Continuous-wave frequency-tunable terahertz-wave generation from GaP

Abstract

Keywords

ASJC Scopus subject areas

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