Mr. Ryoichi Isago Profile

Ryoichi Isago

at Tokyo Institute of Technology

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Author

Publications (7)

Proceedings Article | 17 October 2012 Paper

Varifocal imaging using an ultrasonic optical lens with viscoelastic material

Daisuke Koyama, Ryoichi Isago, Kentaro Nakamura

Proceedings Volume 8421, 84212N (2012) https://doi.org/10.1117/12.966347

KEYWORDS: Acoustics, Finite element methods, Silicon, Ferroelectric materials, Transducers, Liquid lenses, Liquids, Ultrasonics, Optical coherence tomography, Ultrasonography

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Proceedings Article | 19 May 2011 Paper

Fiber-optic ultrasonic probe based on refractive-index modulation in water

Bo Shen, Yuji Wada, Daisuke Koyama, Ryoichi Isago, Yosuke Mizuno, Kentaro Nakamura

Proceedings Volume 7753, 77539W (2011) https://doi.org/10.1117/12.884961

KEYWORDS: Water, Modulation, Ultrasonics, Optical fibers, Finite element methods, Signal detection, Fiber optics, Reflectivity, Light sources, Fiber optics sensors

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Proceedings Article | 17 May 2011 Paper

High-speed focusing of a liquid microlens using acoustic radiation force

Daisuke Koyama, Ryoichi Isago, Kentaro Nakamura

Proceedings Volume 7753, 77535E (2011) https://doi.org/10.1117/12.884753

KEYWORDS: Liquids, Interfaces, Kinematics, Acoustics, Liquid lenses, Silicon, Water, Performance modeling, Transducers, Ultrasonography

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Proceedings Article | 17 May 2011 Paper

Endoscopic optical coherence elastography using acoustic radiation force and bending vibration of optical Fiber

Ryoichi Isago, Kentaro Nakamura

Proceedings Volume 7753, 77534L (2011) https://doi.org/10.1117/12.884746

KEYWORDS: Optical coherence tomography, Optical fibers, Endoscopy, Acoustics, Elastography, Transducers, Tissues, Tissue optics, Optical scanning, Prototyping

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Proceedings Article | 5 October 2009 Paper

High-speed imaging with endoscopic optical coherence tomography using bending vibration of optical fiber

Ryoichi Isago, Kentaro Nakamura

Proceedings Volume 7503, 75034Y (2009) https://doi.org/10.1117/12.835280

KEYWORDS: Optical coherence tomography, Optical fibers, Endoscopy, Mirrors, Glasses, Scanners, Electrodes, Actuators, Collimation, Light sources

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Proceedings Article | 16 May 2008 Paper

A high reading rate FBG sensor system using a high-speed swept light source based on fiber vibrations

Ryoichi Isago, Kentaro Nakamura, Sadayuki Ueha

Proceedings Volume 7004, 700411 (2008) https://doi.org/10.1117/12.785518

KEYWORDS: Fiber Bragg gratings, Light sources, Sensors, Optical fibers, Temperature metrology, Semiconductor lasers, Spectroscopy, Actuators, Transducers, Light

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Proceedings Article | 16 May 2008 Paper

A wavelength swept laser with the sweep rate of 150 kHz using vibrations of optical fiber

Ryoichi Isago, Kentaro Nakamura, Sadayuki Ueha

Proceedings Volume 7004, 700410 (2008) https://doi.org/10.1117/12.785497

KEYWORDS: Optical fibers, Light sources, Fiber lasers, Semiconductor lasers, Transducers, Spectroscopy, Optical scanning, Laser spectroscopy, Fiber Bragg gratings, Sensors

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Showing 5 of 7 publications

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