Dr. Kentaro Miyata Profile

Dr. Kentaro Miyata

at RIKEN Ctr for Advanced Photonics

SPIE Involvement:

Conference Program Committee | Author

Publications (16)

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

Noncritically phase-matched self-difference frequency generation using transition-metal doped chalcogenides

Kentaro Miyata, Masaki Yumoto, Yasushi Kawata, Satoshi Wada, Shinichi Imai

Proceedings Volume 12405, 1240507 (2023) https://doi.org/10.1117/12.2653039

KEYWORDS: Chromium, Emission wavelengths, Chalcogenides, Difference frequency generation, Iron, Absorption, Mid-IR, Ions, Crystals

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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 + 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 | 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 | 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 | 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 | 22 February 2011 Paper

Some properties of the mixed GaS0.4Se0.6 nonlinear crystal in comparison to GaSe

Georgi Marchev, Aleksey Tyazhev, Vladimir Panyutin, Valentin Petrov, Frank Noack, Kentaro Miyata, Michael Griepentrog

Proceedings Volume 7917, 79171G (2011) https://doi.org/10.1117/12.874452

KEYWORDS: Gases, Crystals, Second-harmonic generation, Nonlinear crystals, Absorption, Birefringence, Picosecond phenomena, Optical parametric oscillators, Refractive index, Mid-IR

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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 | 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

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 | 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 | 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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Showing 5 of 16 publications

Conference Committee Involvement (5)

Nonlinear Frequency Generation and Conversion: Materials and Devices XXIV

28 January 2025 | San Francisco, California, United States

Nonlinear Frequency Generation and Conversion: Materials and Devices XXIII

29 January 2024 | San Francisco, California, United States

Nonlinear Frequency Generation and Conversion: Materials and Devices XXII

30 January 2023 | San Francisco, California, United States

Nonlinear Frequency Generation and Conversion: Materials and Devices XXI

24 January 2022 | San Francisco, California, United States

Nonlinear Frequency Generation and Conversion: Materials and Devices XX

6 March 2021 | Online Only, California, United States

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