Publications

Journal Papers

• K. Ishikawa, Y. Shiraki, T. Moriya, A. Ishizawa, K. Hitachi, and K. Oguri ``Comprehensive noise analysis for acousto-optic measurement of airborne sound,'' IEEE Trans. Instrum. Meas., vol.73, 7000309, 2023.

• P. D. Nguyen, K. Ishikawa, N. Harada, and T. Moriya, ``Acousto-optic reconstruction of exterior sound field based on concentric circle sampling with circular harmonic expansion," arxiv:2311.01715, 2023.

• K. Ishikawa, D. Takeuchi, N. Harada, and T. Moriya ``Deep sound-field denoiser: optically-measured sound-field denoising using deep neural network,'' Opt. Express, vol.31, no.20, pp.33405－20, 2023.

• D. Hermawanto, K. Ishikawa, K. Yatabe, and Y. Oikawa ``Determination of microphone acoustic center from sound field projection measured by optical interferometry,'' J. Acoust. Soc. Am., vol.153, no.2, pp.1138－1146, 2023.

• P. D. Nguyen, Y. Shiraki, K. Ishikawa, J. Muramatsu, N. Harada, and T. Moriya ``Distribution Matching for Dimming Control in Visible-Light Region-of-Interest Signaling,'' IEEE Photonics Journal, vol.15, no.1, pp.1－14 (2023).

• K. Ishikawa, K. Yatabe, and Y. Oikawa, Y. Shiraki, and T. Moriya ``Speckle holographic imaging of a sound field using Fresnel lenses,'' Opt. Lett., vol.47, no.21, pp.5688－5691, 2022.

• K. Ishikawa, Y. Shiraki, and T. Moriya ``Spurious-sound-free measurement of parametric acoustic array using optical interferometry,'' JASA Express Letters vol.1, 112801, 2021.【Selected for Editor's Picks】

• K. Ishikawa, Y. Shiraki, T. Moriya, A. Ishizawa, K. Hitachi, and K. Oguri ``Low-noise optical measurement of sound using midfringe locked interferometer with differential detection,'' J. Acoust. Soc. Am., vol.150, no.2, pp.1514－1523, 2021.

• K. Ishikawa, K. Yatabe, and Y. Oikawa ``Seeing the sound of castanets: Acoustic resonances between shells captured by high-speed optical visualization with 1-mm resolution,'' J. Acoust. Soc. Am., vol.148, no.5, pp.3171－3180, 2020.【Selected for Technical Area Picks】

• K. Ishikawa, K. Yatabe, and Y. Oikawa ``Physical-model-based reconstruction of axisymmetric three-dimensional sound field from optical interferometric measurement,'' Meas. Sci. Tech., vol.32, 045202, 2020.

• Denny Hermawanto, K. Ishikawa, K. Yatabe, and Y. Oikawa ``Determination of frequency response of MEMS microphone from sound field measurements using optical phase-shifting interferometry method,'' Appl. Acoust., vol.170, 107523, 2020.

• K. Ishikawa, R. Tanigawa, K. Yatabe, Y. Oikawa, T. Onuma, and H. Niwa, ``Simultaneous imaging of flow and sound using high-speed parallel phase-shifting interferometry,'' Opt. Lett., vol.43, no.5, pp.991－994, 2018. 【Selected for Spotlight on Optics (March 2018)】

• R. Tanigawa, K. Ishikawa, K. Yatabe, Y. Oikawa, T. Onuma, and H. Niwa, ``Optical visualization of a fluid flow via the temperature controlling method,'' Opt. Lett., vol.43, no.14, pp.3273－3276, 2018.

• K. Yatabe, R. Tanigawa, K. Ishikawa, and Y. Oikawa, ``Time-directional filtering of wrapped phase for observing transient phenomena with parallel phase-shifting interferometry,'' Opt. Express, vol.26, no.11, pp.13705－13720, 2018.

• K. Yatabe, K. Ishikawa, and Y. Oikawa, ``Hyper ellipse fitting in subspace method for phase-shifting interferometry: Practical implementation with automatic pixel selection,'' Opt. Express, vol.25, no.23, pp.29401－29416, 2017.

• K. Yatabe, K. Ishikawa, and Y. Oikawa, ``Acousto-optic back-projection: Physical-model-based sound field reconstruction from optical projections,'' J. Sound Vib., vol.394, pp.171－184, 2017.

• K. Yatabe, K. Ishikawa, and Y. Oikawa, ``Simple, flexible and accurate phase retrieval method for generalized phase-shifting interferometry,'' J. Opt. Soc. Am. A, vol.34, no.1, pp.87－96, 2017.

• N. Chitanont, K. Yatabe, K. Ishikawa, and Y. Oikawa, ``Spatio-temporal filter bank for visualizing audible sound field by Schlieren method,'' Appl. Acoust., vol.115, pp.109－120, 2017.

• K. Ishikawa, K. Yatabe, N. Chitanont, Y. Ikeda, Y. Oikawa, T. Onuma, H. Niwa, and M. Yoshii, ``High-speed imaging of sound using parallel phase-shifting interferometry,'' Opt. Express, vol.24, no.12, pp.12922－12932, 2016.

• K. Yatabe, K. Ishikawa, and Y. Oikawa, ``Improving principal component analysis based phase extraction method for phase-shifting interferometry by integrating spatial information,'' Opt. Express, vol.24, no.20, pp.22881－22891, 2016.

• K. Yatabe, K. Ishikawa, and Y. Oikawa, ``Compensation of fringe distortion for phase-shifting 3D shape measurement by inverse map estimation,'' Appl. Opt., vol.55, no.22, pp.6017－6024, 2016.

• K. Ishikawa, Y. Oikawa, and Y. Yamasaki, ``Non-intrusive sound pressure measurement using light scattering,'' Acoust. Sci. Tech., vol.36, no.5, pp.408－418, 2015.

Conference Proceedings

•  F. Imaeda, K. Ishikawa, K. Yatabe and Y. Oikawa, ``Estimating sound intensity from acoustic data captured by parallel phase-shifting interferometry,'' Int. Congr. Acoust. (ICA), Aachen, Sep. 2019.

• R. Tanigawa, K. Ishikawa, K. Yatabe, Y. Oikawa, T. Onuma and H. Niwa, ``Extracting sound from flow measured by parallel phase-shifting interferometry using spatio-temporal filter,'' SPIE Def. Commer. Sens., 10997-26, Maryland, Apr. 2019.

• K. Ishikawa, K. Yatabe, Y. Oikawa, T. Onuma, and H. Niwa, ``Optical visualization of sound field inside transparent cavity using polarization high-speed camera,'' 47th Int. Congr. Expo. Noise Control Eng. (inter-noise), Illinois, Aug. 2018.

• R. Tanigawa, K. Ishikawa, K. Yatabe, Y. Oikawa, T. Onuma and H. Niwa, ``Optical visualization of sound source of edge tone using parallel phase-shifting interferometry,'' 47th Int. Congr. Expo. Noise Control Eng. (inter-noise), Illinois, Aug. 2018.

• D. Hermawanto, K. Ishikawa, K. Yatabe, Y. Oikawa, ``Measurement of sound pressure inside tube using optical interferometry,'' 47th Int. Congr. Expo. Noise Control Eng. (inter-noise), Illinois, Aug. 2018.

• R. Tanigawa, K. Ishikawa, K. Yatabe, Y. Oikawa, T. Onuma and H. Niwa, ``Simultaneous visualization of flow and sound using parallel phase-shifting interferometry,'' 11th Pacific Symposium on Flow Visualization and Image Processing (PSFVIP), Kumamoto, Dec. 2017.

• K. Ishikawa, R. Tanigawa, K. Yatabe, Y. Oikawa, T. Onuma, and H. Niwa, ``Experimental visualization of flow-induced sound using high-speed polarization interferometer,'' 14th International Conference on Flow Dynamics (ICFD2017), Sendai, Nov. 2017. (Received best presentation award)

• K. Ishikawa, K. Yatabe, Y. Ikeda, Y. Oikawa, T. Onuma, H. Niwa, and M. Yoshii, ``Optical sensing of sound fields: Non-contact, quantitative, and single-shot imaging of sound using high-speed polarization camera,'' 5th Joint Meeting of Acoustical Society of America and Acoustical Society of Japan, Hawaii, Nov.－Dec. 2016. 【Received best student paper award in engineering acoustics】

• K. Yatabe, K. Ishikawa, and Y. Oikawa ``Signal processing for optical sound field measurement and visualization,'' 5th Joint Meeting of Acoustical Society of America and Acoustical Society of Japan, Hawaii, Nov.－Dec. 2016.

• K. Ishikawa, K. Yatabe, Y. Ikeda, Y. Oikawa, T. Onuma, H. Niwa, and M. Yoshii, ``Interferometric imaging of acoustical phenomena using high-speed polarization camera and 4-step parallel phase-shifting technique,'' Proc. SPIE 10328, Selected Papers from the 31st International Congress on High-Speed Imaging and Photonics, 103280I (2017). (held in Osaka, Nov. 2016)

• K. Ishikawa, K. Yatabe, Y. Ikeda, and Y. Oikawa, ``Numerical analysis of acousto-optic effect caused by audible sound based on geometrical optics,'' 12th Western Pacific Acoustics Conference, pp.165-169, 2015.

• K. Ishikawa, Y. Oikawa, and Y. Yamasaki, ``Backscattering measurement method for sound field using pulsed laser,'' Forum Acusticum, R01_6, 2014.

Tutorial Papers

• S. A. Verburg, K. Ishikawa, E. Fernandez-Grande, and Y. Oikawa, ``A Century of Acousto-Optics: From Early Discoveries to Modern Sensing of Sound with Light,'' Acoustics Today, vol.19 pp.54－62, 2023.

• K. Ishikawa, ``Imaging and precise measurement of sound by light,'' J. IEICE, vol.106, no.9, pp.849－854, 2023. (in Japanese)

• K. Ishikawa, K. Yatabe, Y. Oikawa ``Optical measurement of sound field near musical instruments,'' J. Acoust. Soc. Jpn., vol.77, no.9, pp.601－608, 2021. (in Japanese)

• K. Yatabe, Y. Oikawa, K. Ishikawa, ``Tutorial on optical measurement of airborne sound in audible range,'' J. Acoust. Soc. Jpn., vol.76, no.8, pp.450－457, 2020. (in Japanese)

• K. Ishikawa, ``Interferometric measurement of sound,'' Japanese Journal of Optics, vol.48, no.6, p.241, 2019. (in Japanese)

• K. Yatabe, K. Ishikawa, R. Tanigawa, Y. Oikawa, ``Optical sound measurement,'' IEICE Fundamentals Review, vol.12, no.4, pp.259--268, Apr. 2019. (in Japanese)

• Y. Oikawa, R. Tanigawa, K. Yatabe, K. Ishikawa, ``Visualization and measurement of acoustic phenomena using high-speed polarized interferometer,'' The Journal of INCE of Japan, vol.43, no.5, pp.207－210, 2019. (in Japanese)

• Y. Oikawa, K. Ishikawa, T. Onuma, O plus E, vol.39, no.3, pp.264－268, 2017. (in Japanese)

• K. Ishikawa, K. Yatabe, Y. Ikeda, Y. Oikawa, "Sound field imaging by using optical system," J. Acoust. Soc. Jpn., vol.72, no.7, pp.430－431, 2016. (in Japanese)

Invited talks

• K. Ishikawa, ``Acousto-optic sensing: state-of-the-art precision measurement and imaging of sound by light,'' at Acoustic Group, Technical University of Denmark, June 2023.

• K. Ishikawa, ``Sound-field measurement using optical technologies,'' IEICE Engineering Acoustics Workshop, May. 2023. (in Japanese)

• K. Ishikawa, Y. Shiraki, T. Moriya, A. Ishizawa, K. Hitachi, and K. Oguri ``Toward ultra-low-noise measurement of sound by optical interferometry,'' International Congress on Acoustics (ICA2022), Gyeongju, Korea, Oct. 2022.

• K. Ishikawa, ``Sound field measurement using optical technologies,'' ASJ Summer Seminar, Sep. 2022. (in Japanese)

• K. Ishikawa, ``Sound field measurement using optical technologies,'' ASJ Summer Seminar, Aug. 2021. (in Japanese)

• K. Ishikawa, ``Measuremet of sound field using high-speed polarization interferometry and its application,'' in 2019 Autumn Meeting of Acoustical Society of Japan，Sep. 2019. (in Japanese)

• Y. Oikawa, K. Ishikawa, K. Yatabe, T. Onuma, H. Niwa, OPIJ2018, 2aES1, Nov. 2018. (in Japanese)

• Y. Oikawa, K. Ishikawa, K. Yatabe, T. Onuma and H. Niwa, ``Seeing the sound we hear: Optical technologies for visualizing sound wave,'' Three-dimensional Imaging, Visualization, and Display, Florida, Apr. 2018. 【Received 2018 Fumio Okano Best Paper Prize】

• K. Yatabe, K. Ishikawa, Y. Oikawa, ``Contactless measurement of sound pressure distribution using laser interferometer - An overview and recent developments -,'' Technical report of IEICE, vol.117, no.399, pp.33--40, Jan. 2018. (in Japanese)

• Y. Oikawa, K. Yatabe, K. Ishikawa, and Y. Ikeda, ``Optical sound field measurement and imaging using laser and high-speed camera,'' 45th Int. Congr. Expo. Noise Control Eng. (inter-noise), pp.258－266, Hamburg, Aug. 2016.

• K. Yatabe, K. Ishikawa, Y. Ikeda, Y. Oikawa, IPSJ SIG Technical Report, vol.2015-MUS-107, no.11, pp.1--6, May 2015. (in Japanese)