Prof. Ryuichi Katayama Profile

Prof. Ryuichi Katayama

at Fukuoka Institute of Technology

SPIE Involvement:

Conference Chair | Editor | Author

Publications (22)

Proceedings Article | 4 October 2024 Presentation + Paper

Simulation on temperature rise using ring-resonator-type device with optimized nano-antenna structure for heat-assisted magnetic recording

Ryuichi Katayama, Satoshi Sugiura

Proceedings Volume 13142, 1314203 (2024) https://doi.org/10.1117/12.3028590

KEYWORDS: Resonators, Magnetism, Temperature distribution, Electric fields, Dielectrics, Nanoantennas, Cladding, Near field, Heatsinks, Quantum simulation

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Proceedings Article | 4 October 2023 Presentation + Paper

Simulation on split-ring-resonator-type device for heat-assisted magnetic recording

Ryuichi Katayama, Satoshi Sugiura

Proceedings Volume 12684, 1268406 (2023) https://doi.org/10.1117/12.2678075

KEYWORDS: Electric fields, Split ring resonators, Magnetism, Terahertz radiation, Refractive index, Near field, Resonators, Cladding, Numerical simulations, Semiconductors

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Proceedings Article | 30 September 2022 Presentation + Paper

Simulation on metal-dielectric hybrid nano-antenna attached to semiconductor ring resonator for heat-assisted magnetic recording

Ryuichi Katayama, Jinghan Chen, Satoshi Sugiura

Proceedings Volume 12231, 1223107 (2022) https://doi.org/10.1117/12.2635248

KEYWORDS: Optical spheres, Refractive index, Near field, Resonators, Magnetism, Metals, Dielectrics, Semiconductors, Nanoantennas, Gold

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Proceedings Article | 7 September 2021 Presentation + Paper

Investigation on how to excite a desired eigenmode selectively in the ring-resonator-type device for heat-assisted magnetic recording

Ryuichi Katayama, Jinghan Chen, Satoshi Sugiura

Proceedings Volume 11828, 118280D (2021) https://doi.org/10.1117/12.2595706

KEYWORDS: Resonators, Near field, Magnetism, Terahertz radiation, Refractive index, Cladding, Numerical simulations, Light sources, Semiconductors, Metals

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Proceedings Article | 20 August 2020 Presentation

Opening remarks to ODS 2020: Industrial Optical Devices and Systems

Ryuichi Katayama, Yuzuru Takashima

Proceedings Volume 11500, 1150002 (2020) https://doi.org/10.1117/12.2581780

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Proceedings Article | 20 August 2020 Presentation + Paper

Light intensity distribution control element for high-brightness projectors using solid-state light sources

Ryuichi Katayama, Taro Tsutsumi

Proceedings Volume 11500, 1150009 (2020) https://doi.org/10.1117/12.2570159

KEYWORDS: Computer generated holography, Light sources, Projection systems, Diffusion, Beam shaping, Solid state lasers, Solid state electronics, Semiconductor lasers, Light, Liquid crystals

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Proceedings Article | 30 August 2019 Paper

Three-dimensional simulation on near-field light generated by semiconductor ring resonator with metal nano-antenna for heat-assisted magnetic recording

Ryuichi Katayama, Satoshi Sugiura

Proceedings Volume 11125, 1112506 (2019) https://doi.org/10.1117/12.2530827

KEYWORDS: Near field, Resonators, Magnetism, Metals, Semiconductors, Magnetic semiconductors, Cladding, Numerical simulations, Light sources, Computer simulations

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Proceedings Article | 14 September 2018 Paper

Effect of various factors on wavelength tolerance in microholographic recording

Ryuichi Katayama

Proceedings Volume 10757, 1075709 (2018) https://doi.org/10.1117/12.2323765

KEYWORDS: Diffraction, Tolerancing, Diffraction gratings, Wavefront aberrations, Refractive index, Superposition, Objectives, Numerical simulations, Magnetism, Lenses

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Proceedings Article | 23 August 2017 Paper

Effect of temperature change in microholographic recording

Ryuichi Katayama

Proceedings Volume 10384, 103840A (2017) https://doi.org/10.1117/12.2274557

KEYWORDS: Temperature metrology, Diffraction gratings, Diffraction, Numerical simulations, Objectives, Lenses, Holography

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Proceedings Article | 8 September 2016 Paper

Effect of wavelength change in microholographic recording

Ryuichi Katayama

Proceedings Volume 9959, 995905 (2016) https://doi.org/10.1117/12.2238531

KEYWORDS: Diffraction, Semiconductor lasers, Refractive index, Objectives, Optical discs, Tolerancing, Beam splitters, Visibility, Diffraction gratings, Superposition

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SPIE Journal Paper | 6 November 2015

Influence of aberrations in microholographic recording

Ryuichi Katayama

OE, Vol. 54, Issue 11, 117104, (November 2015) https://doi.org/10.1117/12.10.1117/1.OE.54.11.117104

KEYWORDS: Signal to noise ratio, Monochromatic aberrations, Confocal microscopy, Wavefront aberrations, Tolerancing, Spherical lenses, Signal detection, Optical engineering, Optical discs, Computer simulations

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Proceedings Article | 2 September 2015 Paper

Proposal for one-beam microholographic recording using radially polarized light beam

Ryuichi Katayama

Proceedings Volume 9587, 958709 (2015) https://doi.org/10.1117/12.2188944

KEYWORDS: Objectives, Diffraction gratings, Polarization, Refractive index, Beam shaping, Optical storage, Signal processing, Detection theory, Magnetism, Superposition

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Proceedings Article | 5 September 2014 Paper

Influence of aberrations on signal-to-noise ratio in microholographic recording

Ryuichi Katayama

Proceedings Volume 9201, 92010I (2014) https://doi.org/10.1117/12.2062408

KEYWORDS: Signal to noise ratio, Wavefront aberrations, Confocal microscopy, Objectives, Tolerancing, Optical simulations, Optical storage, Superposition, Diffraction gratings, Monochromatic aberrations

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Proceedings Article | 11 June 2010 Paper

Microholographic recording with wavelength and angle multiplexing

Ryuichi Katayama, Yuichi Komatsu

Proceedings Volume 7730, 773008 (2010) https://doi.org/10.1117/12.859220

KEYWORDS: Multiplexing, Diffraction gratings, Objectives, Camera shutters, Wavefronts, Modulation, Lenses, Beam splitters, Optical storage, Beam controllers

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Proceedings Article | 18 September 2000 Paper

Radial tilt detection using three-beam optical head

Ryuichi Katayama, Shin-Ichi Meguro, Yuichi Komatsu, Yutaka Yamanaka

Proceedings Volume 4090, (2000) https://doi.org/10.1117/12.399368

KEYWORDS: Signal detection, Head, Holographic optical elements, Objectives, Diffractive optical elements, Servomechanisms, Photodiodes, Optical discs, Beam splitters, Semiconductor lasers

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Proceedings Article | 12 October 1994 Paper

Compact optical head module integrated with chip elements for magneto-optical disks

Ryuichi Katayama, Akitomo Ohba, Yuichi Komatsu, Yuzo Ono

Proceedings Volume 2338, (1994) https://doi.org/10.1117/12.190193

KEYWORDS: Holographic optical elements, Head, Photodiodes, Signal detection, Semiconductor lasers, Integrated optics, Dielectrics, Objectives, Optical components, Data storage

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Proceedings Article | 12 October 1994 Paper

High-density land/groove recording using PRML technology

Hiromi Honma, Toshiaki Iwanaga, Kinji Kayanuma, Makoto Nakada, Ryuichi Katayama, Satoshi Itoi, Hiroshi Inada

Proceedings Volume 2338, (1994) https://doi.org/10.1117/12.190200

KEYWORDS: Molybdenum, Data storage, Sensors, Signal detection, Head, Digital filtering, Optical storage, Video, Standards development, Super resolution

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Proceedings Article | 13 August 1992 Paper

Compact optical head integrated with chip elements for CD-ROM drives

Ryuichi Katayama, Tsuyoshi Nagano, Seijin Sugama, Yuzo Ono

Proceedings Volume 1663, (1992) https://doi.org/10.1117/12.137577

KEYWORDS: Holographic optical elements, Photodiodes, Semiconductor lasers, Head, Integrated optics, Compact discs, Mirrors, Objectives, Optical design, Glasses

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Proceedings Article | 1 July 1991 Paper

Compact magneto-optical disk head integrated with chip elements

Yutaka Yamanaka, Ryuichi Katayama, Yuichi Komatsu, Seiji Ishikawa, M. Itoh, Yuzo Ono

Proceedings Volume 1499, (1991) https://doi.org/10.1117/12.45915

KEYWORDS: Head, Signal detection, Photodetectors, Data storage, Optical components, Semiconductor lasers, Assembly tolerances, Integrated optics, Beam splitters, Prisms

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Proceedings Article | 1 August 1990 Paper

High track density magneto-optical recording using a crosstalk canceler

Kinji Kayanuma, Toshiaki Iwanaga, Hiroshi Inada, K. Okanoue, Ryuichi Katayama, Kazuhiro Yoshihara, Yutaka Yamanaka, Masaki Tsunekane, Osamu Okada

Proceedings Volume 1316, (1990) https://doi.org/10.1117/12.22014

KEYWORDS: Molybdenum, Digital filtering, Head, Data storage, Binary data, Objectives, Signal detection, Modulation, Optical storage, Clocks

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Proceedings Article | 1 August 1990 Paper

Compact magneto-optical disk head using a holographic optical element with analyzer function

Akitomo Ohba, Seijin Sugama, Ryuichi Katayama, Yutaka Urino, Yuzo Ono

Proceedings Volume 1316, (1990) https://doi.org/10.1117/12.22023

KEYWORDS: Signal detection, Head, Holographic optical elements, Optical discs, Electroluminescence, Lithium, Optical storage, Optical components, Holograms, Fabrication

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Proceedings Article | 1 August 1990 Paper

Digital video recording system using multibeam magneto-optical disk drive

Kazuhiro Yoshihara, Ryuichi Katayama, Yutaka Yamanaka, Masaki Tsunekane, Yuzo Ono, Keiichi Kubota

Proceedings Volume 1316, (1990) https://doi.org/10.1117/12.22041

KEYWORDS: Digital video recorders, Video, Digital video discs, Signal detection, Optical tracking, Optical storage, Head, Optical discs, Prisms, Video compression

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Showing 5 of 22 publications

Proceedings Volume Editor (15)

SPIE Conference Volume | 18 October 2024

ODS 2024: Industrial Optical Devices and Systems

SPIE Conference Volume | 31 October 2023

ODS 2023: Industrial Optical Devices and Systems

SPIE Conference Volume | 19 October 2022

ODS 2022: Industrial Optical Devices and Systems

SPIE Conference Volume | 16 September 2021

ODS 2021: Industrial Optical Devices and Systems

SPIE Conference Volume | 29 September 2020

ODS 2020: Industrial Optical Devices and Systems

Showing 5 of 15 publications

Conference Committee Involvement (20)

ODS 2025: Industrial Optical Devices and Systems

3 August 2025 | San Diego, California, United States

ODS 2024: Industrial Optical Devices and Systems

18 August 2024 | San Diego, California, United States

ODS 2023: Industrial Optical Devices and Systems

21 August 2023 | San Diego, California, United States

ODS 2022: Industrial Optical Devices and Systems

21 August 2022 | San Diego, California, United States

ODS 2021: Industrial Optical Devices and Systems

2 August 2021 | San Diego, California, United States

ODS 2020: Industrial Optical Devices and Systems

24 August 2020 | Online Only, California, United States

ODS 2019: Industrial Optical Devices and Systems

11 August 2019 | San Diego, California, United States

Optical Data Storage 2018: Industrial Optical Devices and Systems

19 August 2018 | San Diego, California, United States

Optical Data Storage 2017: From New Materials to New Systems

6 August 2017 | San Diego, California, United States

Optical Data Storage 2016

28 August 2016 | San Diego, California, United States

Optical Data Storage 2015

9 August 2015 | San Diego, California, United States

Optical Data Storage 2014

18 August 2014 | San Diego, California, United States

Optical Data Storage 2010

23 May 2010 | Boulder, Colorado, United States

ISOM/ODS

13 July 2008 | Waikoloa, United States

Optical Data Storage 2006

4 June 2006 | Montréal, Canada

Optical Data Storage Topical Meeting 2004

18 April 2004 | Monterey, California, United States

Optical Data Storage 2003

11 May 2003 | Vancouver, Canada

Optical Data Storage 2000

14 May 2000 | Whistler, BC, Canada

Optical Data Storage

14 May 2000 | Whistler, BC, Canada

International Symposium on Optical Memory and Optical Data Storage

12 July 1999 | Kauai, HI, United States

Showing 5 of 20 Conference Committees

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