Prof. Kiyoshi Kato Profile

Prof. Kiyoshi Kato

at Chitose Institute of Science and Technology

SPIE Involvement:

Author

Publications (28)

Proceedings Article | 12 March 2024 Presentation + Paper

Second-harmonic generation of a CO2 laser at 10.7186–9.2714 μm in AgGa1-xInxSe2

Kiyoshi Kato, Valentin Petrov, Kentaro Miyata

Proceedings Volume 12869, 128690E (2024) https://doi.org/10.1117/12.3002640

KEYWORDS: Phase matching, Nonlinear optical materials, Chalcopyrites, Refractive index, Second harmonic generation, Carbon dioxide lasers

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Proceedings Article | 14 March 2023 Presentation + Paper

Sellmeier and thermo-optic dispersion formulas for BaGa2GeS6

Kiyoshi Kato, Nobuhiro Umemura, Valeriy Badikov, Dmitrii Badikov, Takayuki Okamoto, Kentaro Miyata, Valentin Petrov

Proceedings Volume 12405, 124050E (2023) https://doi.org/10.1117/12.2648272

KEYWORDS: Optical parametric oscillators, Second harmonic generation, Nd:YAG lasers, Sum frequency generation, Thermal optics, Gas lasers, Ferroelectric materials, Solids, Crystals, Refractive index

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Proceedings Article | 4 March 2022 Presentation + Paper

Refined Sellmeier equations of CdGa2S4 for prediction of phase-matching in mixed Hg1-xCdxGa2S4 nonlinear crystals

Kiyoshi Kato, Mark Mero, Zsuzsanna Heiner, Tomotsugu Kinoshita, Valeriy Badikov, Kentaro Miyata, Valentin Petrov

Proceedings Volume 11985, 1198505 (2022) https://doi.org/10.1117/12.2609647

KEYWORDS: Refractive index, Crystals, Optical parametric oscillators, Nd:YAG lasers, Nonlinear crystals, Second-harmonic generation, Chalcopyrites

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Proceedings Article | 5 March 2021 Poster + Presentation

Updated Sellmeier equations for AgGaSe2 valid up to 18 micron

Kiyoshi Kato, Valentin Petrov, Kentaro Miyata

Proceedings Volume 11670, 116701J (2021) https://doi.org/10.1117/12.2583159

KEYWORDS: Silver selenogallate, Optical parametric oscillators, Nd:YAG lasers, Difference frequency generation, Carbon dioxide lasers, Transparency, Sum-frequency generation, Refractive index, Laser optics, Gas lasers

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Proceedings Article | 5 March 2021 Poster + Presentation + Paper

Accurate Sellmeier equations for AgGaS2 in the 0.565-10.6321 μm spectral range

Kiyoshi Kato, Valentin Petrov, Kentaro Miyata

Proceedings Volume 11670, 116701K (2021) https://doi.org/10.1117/12.2576419

KEYWORDS: Silver thiogallate, Optical parametric oscillators, Nd:YAG lasers, Dye lasers, Thermal optics, System on a chip, Semiconductor lasers, Mid-IR, Laser crystals

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Proceedings Article | 5 March 2021 Presentation + Paper

Updated Sellmeier equations of β-BaB2O4

Kiyoshi Kato, Nobuhiro Umemura, Takayuki Okamoto, Kentaro Miyata

Proceedings Volume 11670, 116701E (2021) https://doi.org/10.1117/12.2576038

KEYWORDS: Nd:YAG lasers, Refractive index, Optical parametric oscillators, Mid-IR, Laser crystals, Crystals, Second-harmonic generation, Phase measurement

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Proceedings Article | 2 March 2020 Paper

New thermo-optic dispersion formula for AgGaSe2

Kiyoshi Kato, Takayuki Okamoto, Jim Jacob, Nobuhiro Umemura

Proceedings Volume 11264, 112641N (2020) https://doi.org/10.1117/12.2544656

KEYWORDS: Thermal optics, Second-harmonic generation, Silver selenogallate, Crystals

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Proceedings Article | 2 March 2020 Paper

Phase-matching properties of LiIn(SxSe1-x) for THG of a CO2 laser at 10.5910 μm

Kiyoshi Kato, Valentin Petrov, Kentaro Miyata

Proceedings Volume 11264, 112641W (2020) https://doi.org/10.1117/12.2550948

KEYWORDS: Carbon dioxide lasers, Gas lasers, Thermal optics, Crystals, Mid-IR, Solids, Sum-frequency generation, Dispersion, Refractive index

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Proceedings Article | 15 February 2018 Paper

90º phase-matched Hg0.35Cd0.65Ga2S4 optical parametric oscillator pumped by a Nd:YAG laser

Nobuhiro Umemura, Valentin Petrov, Takuya Okamoto, Kiyoshi Kato

Proceedings Volume 10516, 1051619 (2018) https://doi.org/10.1117/12.2288623

KEYWORDS: Optical parametric oscillators, Crystals, Nd:YAG lasers, Mercury, Mid-IR, Thermal optics, Nonlinear crystals, Infrared spectroscopy, Spectroscopy, Visible radiation

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Proceedings Article | 15 February 2018 Paper

Upconversion of the mid-IR pulses to the near-IR in LiGaS2

Kiyoshi Kato, Nobuhiro Umemura, Takuya Okamoto, Valentin Petrov

Proceedings Volume 10516, 105161D (2018) https://doi.org/10.1117/12.2286762

KEYWORDS: Nd:YAG lasers, Mid-IR, Optical parametric oscillators, Upconversion, Gas lasers, Ferroelectric materials, Femtosecond phenomena, Crystals, Laser applications, Second-harmonic generation

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Proceedings Article | 4 March 2016 Paper

Phase-matching properties of GaS0.4Se0.6 for type-2 DFG in the 100.4-1030.6µm range

Kiyoshi Kato, Valentin Petrov, Nobuhiro Umemura

Proceedings Volume 9731, 973117 (2016) https://doi.org/10.1117/12.2211245

KEYWORDS: Terahertz radiation, Harmonic generation, Crystals, Carbon dioxide lasers, Birefringence, Gases, Spectroscopy, Phase measurement, Nd:YAG lasers, Laser crystals, Refractive index, Second-harmonic generation, Solids, Laser applications, Optical parametric oscillators

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Proceedings Article | 27 February 2015 Paper

Temperature-tuned 90° phase-matched SHG and DFG in BaGa4S7

Nobuhiro Umemura, Valentin Petrov, Valery Badikov, Kiyoshi Kato

Proceedings Volume 9347, 93470N (2015) https://doi.org/10.1117/12.2077463

KEYWORDS: Second-harmonic generation, Crystals, Nd:YAG lasers, Carbon dioxide lasers, Laser crystals, Optical parametric oscillators, Thermal optics, Ferroelectric materials, Solids, Nonlinear crystals

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Proceedings Article | 12 March 2013 Paper

Nd:YAG laser pumped HgGa2S4 parametric oscillator

Kiyoshi Kato, Kentaro Miyata

Proceedings Volume 8604, 86041K (2013) https://doi.org/10.1117/12.2007565

KEYWORDS: Crystals, Nd:YAG lasers, Optical parametric oscillators, Oscillators, Nonlinear crystals, Mirrors, Laser crystals, Crystallography, Thermal optics, Mid-IR

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Proceedings Article | 12 March 2013 Paper

Second-harmonic generation in Hg0.35Cd0.65Ga2S4 and Hg0.52Cd0.48Ga2S4

Kiyoshi Kato, Takuya Mikami, Valentin Petrov

Proceedings Volume 8604, 86041I (2013) https://doi.org/10.1117/12.2002917

KEYWORDS: Second-harmonic generation, Cadmium, Crystals, Nd:YAG lasers, Refractive index, Optical amplifiers, Mercury, Gallium, Optical parametric oscillators, Laser crystals

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Proceedings Article | 12 March 2013 Paper

Fourth-harmonic generation of the CO2 laser wavelength at 10.5910 μm in BaGa4S7

Kiyoshi Kato, Takayuki Okamoto, Takuya Mikami, Valentin Petrov, Valeriy Badikov, Dmitrii Badikov, Vladimir Panyutin

Proceedings Volume 8604, 860416 (2013) https://doi.org/10.1117/12.2002929

KEYWORDS: Crystals, Carbon dioxide lasers, Second-harmonic generation, Laser crystals, Nd:YAG lasers, Mid-IR, Nonlinear crystals, Laser damage threshold, Birefringence, Laser optics

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Proceedings Article | 22 February 2011 Paper

Modified Sellmeier equations for ZnGeP2 in the 0.97-1640µm range

K. Kato, N. Umemura, T. Okamoto, T. Mikami

Proceedings Volume 7917, 79171V (2011) https://doi.org/10.1117/12.873133

KEYWORDS: Crystals, Nd:YAG lasers, Optical parametric oscillators, Terahertz radiation, Refractive index, Laser crystals, Carbon dioxide lasers, Neodymium, Nonlinear crystals, Frequency conversion

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Proceedings Article | 3 March 2010 Paper

Sellmeier and thermo-optic dispersion formulas for Beta-BaB[sub]2[/sub]O[sub]4[/sub] (revisited)

K. Kato, N. Umemura, T. Mikami

Proceedings Volume 7582, 75821L (2010) https://doi.org/10.1117/12.841913

KEYWORDS: Thermal optics, Optical parametric oscillators, Second-harmonic generation, Sum-frequency generation, Frequency conversion, Absorption, Crystals, Polarization, Nd:YAG lasers, Dye lasers

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Proceedings Article | 18 February 2010 Paper

Simultaneous blue and red light generation with birefringent phase matching

Kentaro Miyata, Nobuhiro Umemura, Kiyoshi Kato

Proceedings Volume 7582, 758206 (2010) https://doi.org/10.1117/12.843029

KEYWORDS: Optical parametric oscillators, Second-harmonic generation, Beam propagation method, Nonlinear crystals, Nd:YAG lasers, RGB color model, Crystals, Upconversion, Signal processing, Phase matching

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Proceedings Article | 19 May 2009 Paper

Cascade parametric oscillator system at 5.76 μm for cholesterol elimination

T. Shido, T. Mikami, K. Kato

Proceedings Volume 7354, 73541C (2009) https://doi.org/10.1117/12.820436

KEYWORDS: Optical parametric oscillators, Crystals, Mirrors, Nd:YAG lasers, Absorption, Reflectivity, Oscillators, Nonlinear optics, Free electron lasers, Nonlinear crystals

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Proceedings Article | 24 February 2009 Paper

90 degree phase-matched direct third-harmonic generation in LiIO3

K. Miyata, F. Tanno, K. Kato

Proceedings Volume 7197, 71970P (2009) https://doi.org/10.1117/12.808126

KEYWORDS: Second-harmonic generation, Nd:YAG lasers, Thermal optics, Third-harmonic generation, Crystals, Optical parametric oscillators, Phase measurement, Temperature metrology, Solids, Harmonic generation

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Proceedings Article | 13 February 2008 Paper

Temperature tuned 90° phase-matched CO2 laser doubling in AgGa1-xInxS2 crystal

Saumyabrata Banerjee, Kentaro Miyata, Kiyoshi Kato

Proceedings Volume 6875, 687517 (2008) https://doi.org/10.1117/12.760564

KEYWORDS: Crystals, Laser crystals, Carbon dioxide lasers, Second-harmonic generation, Thermal optics, Optical parametric oscillators, Chalcopyrites, Nd:YAG lasers, Difference frequency generation, Harmonic generation

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Proceedings Article | 13 February 2008 Paper

Direct third-harmonic generation in BiB3O6

K. Miyata, T. Mikami, N. Umemura, K. Kato

Proceedings Volume 6875, 687518 (2008) https://doi.org/10.1117/12.760859

KEYWORDS: Crystals, Second-harmonic generation, Third-harmonic generation, Nd:YAG lasers, Nonlinear crystals, Thermal optics, Polarization, Signal processing, Temperature metrology, Oscillators

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Proceedings Article | 13 February 2008 Paper

Frequency conversion of near IR lasers in AgxGaxGe1-xS2 and AgxGaxGe1-xSe2

K. Miyata, S. Banerjee, V. Petrov, K. Kato

Proceedings Volume 6875, 687519 (2008) https://doi.org/10.1117/12.761060

KEYWORDS: Crystals, Second-harmonic generation, Nonlinear crystals, Polarization, Infrared lasers, Temperature metrology, Laser crystals, Frequency conversion, Birefringence, Solids

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Proceedings Article | 14 February 2007 Paper

New experimental results for SHG and DFG in AgGaGeS4

K. Miyata, V. Petrov, N. Umemura, K. Kato, N. Saito, S. Wada

Proceedings Volume 6455, 645514 (2007) https://doi.org/10.1117/12.698079

KEYWORDS: Second-harmonic generation, Crystals, Refractive index, Sapphire lasers, Solids, Optical parametric oscillators, Nd:YAG lasers, Gallium, Laser crystals, Silver

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Proceedings Article | 14 February 2007 Paper

Noncritical phase-matched difference-frequency generation in AgGa1-xInxS2

Saumyabrata Banerjee, Kiyoshi Kato

Proceedings Volume 6455, 645513 (2007) https://doi.org/10.1117/12.698047

KEYWORDS: Crystals, Sapphire lasers, Nd:YAG lasers, Laser crystals, Mid-IR, Infrared radiation, Optical parametric oscillators, Polarization, Data processing, Chalcopyrites

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Proceedings Article | 14 February 2007 Paper

Parametric oscillation in BiB3O6 pumped at 1.0642 um

Kiyoshi Kato

Proceedings Volume 6455, 645512 (2007) https://doi.org/10.1117/12.698046

KEYWORDS: Optical parametric oscillators, Crystals, Nd:YAG lasers, Thermal optics, Laser crystals, Oscillators, Second-harmonic generation, Dispersion, Mirrors, Reflectivity

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Proceedings Article | 10 February 2006 Paper

Sellmeier and thermo-optic dispersion formulas for AgGa(S_1-xSe_x)₂ with application in mid-IR generation

Saumyabrata Banerjee, Nobuhiro Umemura, Kiyoshi Kato

Proceedings Volume 6103, 610314 (2006) https://doi.org/10.1117/12.645555

KEYWORDS: Selenium, Thermal optics, Optical parametric oscillators, Crystals, Mid-IR, Nd:YAG lasers, Refractive index, Dispersion, Chalcopyrites, Semiconductors

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Proceedings Article | 3 April 2000 Paper

Thermo-optic dispersion formula of KNbO3 for mid-infrared OPO

Nobuhiro Umemura, Kunio Yoshida, Kiyoshi Kato

Proceedings Volume 3889, (2000) https://doi.org/10.1117/12.380918

KEYWORDS: Thermal optics, Second-harmonic generation, Optical parametric oscillators, Crystals, Solids, Mid-IR, Nd:YAG lasers, Phase measurement, Dispersion, Potassium

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Showing 5 of 28 publications

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