Dr. Satoshi Hasegawa Profile

Dr. Satoshi Hasegawa

at Utsunomiya Univ

SPIE Involvement:

Author

Publications (16)

Proceedings Article | 23 November 2024 Paper

High-framerate pulse-to-pulse holographic beam-shaping using a ferroelectric liquid-crystal-on-silicon spatial light modulator

Y. Hayasaki, S. Hasegawa, A. Tanabe

Proceedings Volume 13240, 1324004 (2024) https://doi.org/10.1117/12.3036586

KEYWORDS: Laser processing, Holography, Computer generated holography, Femtosecond phenomena, Modulation, Binary data, Spatial light modulators, Diffraction, Dichroic mirrors, Beam shaping

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Proceedings Article | 20 June 2024 Presentation + Paper

Spatial and temporal stabilization of holographically-shaped beam with the Fourier space intensity measurement

Yoshio Hayasaki, Satoshi Hasegawa

Proceedings Volume 13005, 1300509 (2024) https://doi.org/10.1117/12.3016729

KEYWORDS: Holography, Laser processing, Computer generated holography, Beam shaping, Imperfections, Glasses, Femtosecond phenomena, Fabrication, Quantum measurement, Imaging systems

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Proceedings Article | 13 March 2024 Presentation

High-precision femtosecond laser processing with aberration compensation based on machine learning

Satoshi Hasegawa

Proceedings Volume PC12872, PC1287209 (2024) https://doi.org/10.1117/12.3005065

KEYWORDS: Laser processing, Wavefront aberrations, Machine learning, Wavefront sensors, Femtosecond phenomena, Adaptive optics, Wavefronts, Point spread functions, Neural networks, Coherence imaging

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Proceedings Article | 7 August 2023 Paper

Holographic optical engine (HolOE) for high quality beam shaping

Yoshio Hayasaki, Satoshi Hasegawa

Proceedings Volume 12624, 1262411 (2023) https://doi.org/10.1117/12.2675690

KEYWORDS: Holography, Computer generated holography, Laser processing, Beam shaping, Femtosecond phenomena, Spatial light modulators

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Proceedings Article | 30 December 2022 Paper

In-process OCT monitoring to control holographic laser processing

Satoshi Hasegawa, Yoshio Hayasaki

Proceedings Volume 12316, 1231606 (2022) https://doi.org/10.1117/12.2642444

KEYWORDS: Laser processing, Optical coherence tomography, Holography, Process control, Computer generated holography, Spatial light modulators

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Proceedings Article | 19 December 2022 Presentation + Paper

Holographic beam-shaping optimized in a laser processing system

Yoshio Hayasaki, Satoshi Hasegawa, Honghao Zhang, Ryo Onodera, Takefumi Kosugi, Nami Kuroo, Fumiya Ishita

Proceedings Volume 12318, 123181T (2022) https://doi.org/10.1117/12.2641880

KEYWORDS: Computer generated holography, Laser processing, Holography, Laser systems engineering, Glasses, Femtosecond phenomena, Diffraction, Spatial light modulators, Beam shaping

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Proceedings Article | 27 October 2021 Paper

Hologram optimized in holographic laser processing system

Honghao Zhang, Satoshi Hasegawa, Haruyoshi Toyoda, Yoshio Hayasaki

Proceedings Volume 11927, 1192709 (2021) https://doi.org/10.1117/12.2616251

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Proceedings Article | 9 October 2021 Presentation + Paper

Three-dimensional holographic laser reconstruction and processing with optimized computer-generated hologram

Honghao Zhang, Satoshi Hasegawa, Haruyoshi Toyoda, Yoshio Hayasaki

Proceedings Volume 11898, 118980I (2021) https://doi.org/10.1117/12.2600491

KEYWORDS: Computer generated holography, Holography, Laser processing, Diffraction, 3D displays, 3D modeling, Glasses, Computing systems, Optimization (mathematics), 3D image processing

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Proceedings Article | 18 November 2019 Paper

In-system optimization of hologram for holographic femtosecond laser processing

Honghao Zhang, Satoshi Hasegawa, Yoshio Hayasaki

Proceedings Volume 11188, 111880M (2019) https://doi.org/10.1117/12.2538722

KEYWORDS: Diffraction, Femtosecond phenomena, Computer generated holography, Holography, Holograms, Laser processing, CCD image sensors, Image sensors, Laser systems engineering, Image processing

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Proceedings Article | 17 February 2017 Presentation + Paper

Line-shaped femtosecond laser pulses for large-area machining

Satoshi Hasegawa, Yoshio Hayasaki

Proceedings Volume 10092, 1009212 (2017) https://doi.org/10.1117/12.2251271

KEYWORDS: Femtosecond phenomena, Computer generated holography, Spatial light modulators, Laser processing, Nanolithography, Holography, Two photon polymerization, Pulsed laser operation, Beam shaping, Polarization, Laser ablation

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Proceedings Article | 4 March 2016 Paper

Holographic vector-wave femtosecond laser processing

Yoshio Hayasaki, Satoshi Hasegawa

Proceedings Volume 9764, 97641C (2016) https://doi.org/10.1117/12.2208311

KEYWORDS: Computer generated holography, Nanolithography, Polarization, Holography, Laser processing, Computer generated holography, Femtosecond laser micromachining, Diffraction, Modulation, Spatial frequencies

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Proceedings Article | 24 December 2011 Paper

Holographic femtosecond laser processing system with an adaptive control

Yoshio Hayasaki, Satoshi Hasegawa

Proceedings Volume 8204, 82040B (2011) https://doi.org/10.1117/12.906201

KEYWORDS: Computer generated holography, Femtosecond phenomena, Diffraction, Holography, Laser processing, Spatial light modulators, Laser systems engineering, Adaptive control, Glasses, Wavefronts

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Proceedings Article | 22 February 2011 Paper

Optimization methods of hologram for holographic femtosecond laser processing

Yoshio Hayasaki, Satoshi Hasegawa

Proceedings Volume 7920, 79200Q (2011) https://doi.org/10.1117/12.873487

KEYWORDS: Computer generated holography, Femtosecond phenomena, Diffraction, Holography, Holograms, Spatial light modulators, Absorption, Infrared imaging, Liquid crystals, Harmonic generation

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Proceedings Article | 11 February 2011 Paper

Holographic spatiotemporal lens

Kouhei Kimura, Satoshi Hasegawa, Yoshio Hayasaki

Proceedings Volume 7925, 792508 (2011) https://doi.org/10.1117/12.874329

KEYWORDS: Femtosecond phenomena, Holography, Spatial light modulators, Diffraction gratings, Lens design, Spatial resolution, Diffraction, Dispersion, Pulsed laser operation, Two photon excitation microscopy

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Proceedings Article | 18 February 2010 Paper

Second harmonic optimization of a hologram

S. Hasegawa, Y. Hayasaki

Proceedings Volume 7584, 758414 (2010) https://doi.org/10.1117/12.841929

KEYWORDS: Diffraction, Computer generated holography, Femtosecond phenomena, Image processing, Absorption, Holograms, Holography, Spatial light modulators, Image sensors, Nonlinear crystals

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Proceedings Article | 24 February 2009 Paper

Parallel femtosecond laser processing with a computer-generated hologram

S. Hasegawa, Y. Hayasaki

Proceedings Volume 7201, 72011D (2009) https://doi.org/10.1117/12.810234

KEYWORDS: Diffraction, Femtosecond phenomena, Computer generated holography, Phase modulation, Holography, Optimization (mathematics), Glasses, Phase shift keying, Scanning electron microscopy, Pulsed laser operation

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Showing 5 of 16 publications

Conference Committee Involvement (1)

Laser Applications in Microelectronic and Optoelectronic Manufacturing (LAMOM) XXX

27 January 2025 | San Francisco, California, United States

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