Widely Tunable THz-Wave Generation by Nonlinear Optics

Hiromasa ITO; Kodo KAWASE; Jun-ichi SHIKATA

Widely Tunable THz-Wave Generation by Nonlinear Optics

Hiromasa ITO, Kodo KAWASE, Jun-ichi SHIKATA

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Widely tunable coherent terahertz (THz)-wave generation was successfully demonstrated based on the laser light scattering from the lowest A₁-symmetry polariton mode by using a Q-switched Nd:YAG laser pumping. This method exhibits multiple advantages like wide tunability (frequency: 0. 9-2. 2 THz), coherency and compactness of its system. In this paper, the general performances of this THz-wave generator, as well as the recent development of the system and its application are reported. Measurements of tunability, coherency, power, polarization, radiation angle, and divergence are shown. The cryogenic cooling of the crystal was performed in addition, and a more than one hundred times higher THz-wave output was observed. A spectroscopic application of our wave source is demonstrated by measuring the water vapor absorption.

Publication: IEICE TRANSACTIONS on Electronics Vol.E81-C No.2 pp.264-268

Publication Date: 1998/02/25

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Type of Manuscript: Special Section PAPER (Special Issue on Ultrashort Optical Pulse Technologies and their Applications)

Category: THz Wave Generation and Applications

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Hiromasa ITO, Kodo KAWASE, Jun-ichi SHIKATA, "Widely Tunable THz-Wave Generation by Nonlinear Optics" in IEICE TRANSACTIONS on Electronics, vol. E81-C, no. 2, pp. 264-268, February 1998, doi: .
Abstract: Widely tunable coherent terahertz (THz)-wave generation was successfully demonstrated based on the laser light scattering from the lowest A₁-symmetry polariton mode by using a Q-switched Nd:YAG laser pumping. This method exhibits multiple advantages like wide tunability (frequency: 0. 9-2. 2 THz), coherency and compactness of its system. In this paper, the general performances of this THz-wave generator, as well as the recent development of the system and its application are reported. Measurements of tunability, coherency, power, polarization, radiation angle, and divergence are shown. The cryogenic cooling of the crystal was performed in addition, and a more than one hundred times higher THz-wave output was observed. A spectroscopic application of our wave source is demonstrated by measuring the water vapor absorption.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/e81-c_2_264/_p

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@ARTICLE{e81-c_2_264,
author={Hiromasa ITO, Kodo KAWASE, Jun-ichi SHIKATA, },
journal={IEICE TRANSACTIONS on Electronics},
title={Widely Tunable THz-Wave Generation by Nonlinear Optics},
year={1998},
volume={E81-C},
number={2},
pages={264-268},
abstract={Widely tunable coherent terahertz (THz)-wave generation was successfully demonstrated based on the laser light scattering from the lowest A₁-symmetry polariton mode by using a Q-switched Nd:YAG laser pumping. This method exhibits multiple advantages like wide tunability (frequency: 0. 9-2. 2 THz), coherency and compactness of its system. In this paper, the general performances of this THz-wave generator, as well as the recent development of the system and its application are reported. Measurements of tunability, coherency, power, polarization, radiation angle, and divergence are shown. The cryogenic cooling of the crystal was performed in addition, and a more than one hundred times higher THz-wave output was observed. A spectroscopic application of our wave source is demonstrated by measuring the water vapor absorption.},
keywords={},
doi={},
ISSN={},
month={February},}

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TY - JOUR
TI - Widely Tunable THz-Wave Generation by Nonlinear Optics
T2 - IEICE TRANSACTIONS on Electronics
SP - 264
EP - 268
AU - Hiromasa ITO
AU - Kodo KAWASE
AU - Jun-ichi SHIKATA
PY - 1998
DO -
JO - IEICE TRANSACTIONS on Electronics
SN -
VL - E81-C
IS - 2
JA - IEICE TRANSACTIONS on Electronics
Y1 - February 1998
AB - Widely tunable coherent terahertz (THz)-wave generation was successfully demonstrated based on the laser light scattering from the lowest A₁-symmetry polariton mode by using a Q-switched Nd:YAG laser pumping. This method exhibits multiple advantages like wide tunability (frequency: 0. 9-2. 2 THz), coherency and compactness of its system. In this paper, the general performances of this THz-wave generator, as well as the recent development of the system and its application are reported. Measurements of tunability, coherency, power, polarization, radiation angle, and divergence are shown. The cryogenic cooling of the crystal was performed in addition, and a more than one hundred times higher THz-wave output was observed. A spectroscopic application of our wave source is demonstrated by measuring the water vapor absorption.
ER -