Prof. Makoto Hasegawa Profile

Prof. Makoto Hasegawa

Professor at Chitose Institute of Science and Technology

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Author

Publications (15)

Proceedings Article | 3 October 2024 Presentation + Paper

Analysis of rotation phenomena of speckle patterns in an output light spot from multimode optical fiber with deep learning scheme

Ryusei Sato, Makoto Hasegawa

Proceedings Volume 13138, 131380T (2024) https://doi.org/10.1117/12.3027910

KEYWORDS: Speckle pattern, Education and training, Image classification, Data modeling, Deep learning, Optical fibers, Matrices, Speckle, Image processing, Sensors

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Proceedings Article | 30 June 2022 Open Access

Demonstration tools for changes in visible colors of transmitting light beams to be caused by optical rotation in syrup as optical active material and their predictions

Seika Tokumitsu, Makoto Hasegawa

Proceedings Volume 12297, 122970J (2022) https://doi.org/10.1117/12.2635520

KEYWORDS: Active optics, Color prediction, Visibility, Photonics, Education and training, Visible radiation, Colorimetry

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Proceedings Article | 9 October 2021 Presentation + Paper

Changes in speckle patterns in an output light spot from an optical fiber to be caused by load application of small weight level

Makoto Hasegawa, Takato Chiba, Yu Miyakoshi

Proceedings Volume 11901, 119010L (2021) https://doi.org/10.1117/12.2602514

KEYWORDS: Optical fibers, Speckle pattern, Laser beam propagation, Speckle, Optical sensing

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Proceedings Article | 18 November 2019 Paper

Prediction of the angle of rotation to be caused by optical rotation phenomenon in optical active materials and observation of resultant changes in visible colors of transmitting light beams

Seika Tokumitsu, Makoto Hasegawa

Proceedings Volume 11189, 1118912 (2019) https://doi.org/10.1117/12.2537688

KEYWORDS: Active optics, Polarization, Engineering education, Polarimetry, Polarizing plates, Light

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Proceedings Article | 2 July 2019 Open Access

Satisfactory role of LEDs as a light receiving component and their uses in science demonstration experiments for educational purposes

Makoto Hasegawa

Proceedings Volume 11143, 111432F (2019) https://doi.org/10.1117/12.2523733

KEYWORDS: Light emitting diodes, Optical communications, Light sources, Light, Optical components, Resistors, Photodiodes, Semiconductor materials, Modulation, Signal detection

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Proceedings Article | 16 August 2017 Open Access

Observations and theoretical evaluations of color changes of traveling light beams caused by optical rotation phenomena in sugared water and their applications for educational purposes

Seika Tokumitsu, Makoto Hasegawa

Proceedings Volume 10452, 1045219 (2017) https://doi.org/10.1117/12.2266609

KEYWORDS: Polarization, Physics, Spectroscopy, Light emitting diodes, Light sources

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Proceedings Article | 25 October 2016 Paper

Detection of load application onto an optical fiber through changes in speckle patterns in an output light spot

Makoto Hasegawa, Ryo Takeda, Yuki Fujioka

Proceedings Volume 9685, 96850C (2016) https://doi.org/10.1117/12.2241959

KEYWORDS: Optical fibers, Speckle pattern, Solar cells, Light emitting diodes, Fiber optic communications, Optical communications, Glasses, Semiconductor lasers, Laser beam propagation, Photodetectors

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Proceedings Article | 27 September 2016 Open Access

Continuous outreach activities performed by a student project team of undergraduates and their program topics in optics and photonics

Makoto Hasegawa, Seika Tokumitsu

Proceedings Volume 9946, 99460D (2016) https://doi.org/10.1117/12.2235311

KEYWORDS: Photonics, Communication engineering, Polarization, Light emitting diodes, Optical communications, Manufacturing, Prisms, Light sources, Water, Light

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SPIE Journal Paper | 14 July 2016

Preliminary investigations on changes in speckle patterns projected from a multimode optical fiber due to external disturbances to be applied onto the fiber

Makoto Hasegawa

OE, Vol. 55, Issue 12, 121715, (July 2016) https://doi.org/10.1117/12.10.1117/1.OE.55.12.121715

KEYWORDS: Speckle pattern, Optical fibers, Multimode fibers, Image filtering, Image processing, Solar cells, Glasses, Optical engineering, Fiber lasers, Optical communications

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Proceedings Article | 10 August 2015 Paper

Changes in speckle patterns induced by load application onto an optical fiber and its possible application for sensing purpose

Makoto Hasegawa, Jyun-ya Okumura, Akio Hyuga

Proceedings Volume 9620, 962009 (2015) https://doi.org/10.1117/12.2185086

KEYWORDS: Optical fibers, Speckle pattern, Solar cells, Image processing, Laser beam propagation, Photovoltaics, Semiconductor lasers, Fiber optic communications, Optical communications, Glasses

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Proceedings Article | 21 August 2014 Paper

Changes in speckle patterns induced by load application onto an optical fiber and its detection through image processing

Makoto Hasegawa, Yuta Shimizu, Takuya Nakamaru

Proceedings Volume 9285, 928502 (2014) https://doi.org/10.1117/12.2067587

KEYWORDS: Optical fibers, Speckle pattern, Image processing, Photodetectors, Solar cells, Laser beam propagation, CCD cameras, Semiconductor lasers, Fiber optic communications, Optical communications

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Proceedings Article | 19 September 2013 Paper

Speckle pattern rotation and a detection scheme for its rotation angle

Makoto Hasegawa, Kohei Yamamoto, Yusuke Takahashi, Muneki Kawahara

Proceedings Volume 8905, 89051J (2013) https://doi.org/10.1117/12.2034369

KEYWORDS: Speckle pattern, Optical fibers, Image processing, Fiber lasers, Image filtering, Multimode fibers, Speckle, CCD image sensors, Image analysis, Laser sources

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Proceedings Article | 30 November 2012 Paper

Rotation phenomena of speckle patterns observed in an output light spot from an optical fiber and its applicability for sensing applications

Makoto Hasegawa, Yusuke Takahashi, Muneki Kawahara

Proceedings Volume 8561, 856105 (2012) https://doi.org/10.1117/12.979384

KEYWORDS: Speckle pattern, Optical fibers, Light sources, Image processing, Fiber lasers, Connectors, Image filtering, Multimode fibers, Semiconductor lasers, Laser sources

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Proceedings Article | 30 November 2012 Paper

An experimental study on detection of load application onto an optical fiber by means of changes of a speckle pattern

Makoto Hasegawa, Muneki Kawahara

Proceedings Volume 8561, 856103 (2012) https://doi.org/10.1117/12.979383

KEYWORDS: Optical fibers, Speckle pattern, Image processing, Laser beam propagation, Binary data, Semiconductor lasers, Solar cells, Fiber lasers, Multimode fibers, Telecommunications

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Proceedings Article | 17 August 1994 Paper

Signal analysis of fiber optic probe method from Ho:YAG laser ablation bubble

Miya Ishihara, Makoto Hasegawa, Masato Yano, Akio Nakajima, Tsunenori Arai, Makoto Kikuchi, Minoru Obara

Proceedings Volume 2134, (1994) https://doi.org/10.1117/12.182950

KEYWORDS: Fiber optics, Laser ablation, Signal analysis, Photography

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Showing 5 of 15 publications

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