THz generation from GaP rod-type waveguides

Jun Ichi Nishizawa; Ken Suto; Tadao Tanabe; Kyosuke Saito; Tomoyuki Kimura; Yutaka Oyama

doi:10.1109/LPT.2006.890098

THz generation from GaP rod-type waveguides

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

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

20 Citations (Scopus)

Abstract

Terahertz (THz) generation was demonstrated from GaP rod-type waveguides via difference-frequency-mixing of near-infrared light using a collinear phase-matching condition. THz output peaks were observed, and appeared at frequencies corresponding to the fundamental and high-order waveguide modes. Interestingly, the position of the fundamental mode shifted to a higher frequency for a smaller waveguide cross-section, which is attributed to the waveguide confinement of the THz wave. The conversion efficiency was enhanced in the waveguide with a cross section of 200 μm × 160 μm as compared to that in bulk GaP crystals.

Original language	English
Pages (from-to)	143-145
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	19
Issue number	3
DOIs	https://doi.org/10.1109/LPT.2006.890098
Publication status	Published - 2007 Feb 1
Externally published	Yes

Keywords

Collinear phase matching
GaP
Optical waveguide
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.2006.890098

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abstract = "Terahertz (THz) generation was demonstrated from GaP rod-type waveguides via difference-frequency-mixing of near-infrared light using a collinear phase-matching condition. THz output peaks were observed, and appeared at frequencies corresponding to the fundamental and high-order waveguide modes. Interestingly, the position of the fundamental mode shifted to a higher frequency for a smaller waveguide cross-section, which is attributed to the waveguide confinement of the THz wave. The conversion efficiency was enhanced in the waveguide with a cross section of 200 μm × 160 μm as compared to that in bulk GaP crystals.",

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AU - Nishizawa, Jun Ichi

AU - Suto, Ken

AU - Tanabe, Tadao

AU - Saito, Kyosuke

AU - Kimura, Tomoyuki

AU - Oyama, Yutaka

PY - 2007/2/1

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N2 - Terahertz (THz) generation was demonstrated from GaP rod-type waveguides via difference-frequency-mixing of near-infrared light using a collinear phase-matching condition. THz output peaks were observed, and appeared at frequencies corresponding to the fundamental and high-order waveguide modes. Interestingly, the position of the fundamental mode shifted to a higher frequency for a smaller waveguide cross-section, which is attributed to the waveguide confinement of the THz wave. The conversion efficiency was enhanced in the waveguide with a cross section of 200 μm × 160 μm as compared to that in bulk GaP crystals.

AB - Terahertz (THz) generation was demonstrated from GaP rod-type waveguides via difference-frequency-mixing of near-infrared light using a collinear phase-matching condition. THz output peaks were observed, and appeared at frequencies corresponding to the fundamental and high-order waveguide modes. Interestingly, the position of the fundamental mode shifted to a higher frequency for a smaller waveguide cross-section, which is attributed to the waveguide confinement of the THz wave. The conversion efficiency was enhanced in the waveguide with a cross section of 200 μm × 160 μm as compared to that in bulk GaP crystals.

KW - Collinear phase matching

KW - GaP

KW - Optical waveguide

KW - Phonon-polariton

KW - Terahertz (THz)-wave

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THz generation from GaP rod-type waveguides

Abstract

Keywords

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