坂口浩一郎 (助教)

□部屋:情報工学部棟2316室

□電話:0866-94-2733(直通)

□FAX:0866-94-2199(学部共通)

□メールアドレス:koichiro@(以下c.oka-pu.ac.jpを付けて下さい)

□担当科目:

 ・学部:情報通信工学演習B,情報通信工学演習C,情報通信工学実験IA

■履歴:

  2004年 3月 慶應義塾大学理工学部電子工学科 卒業

  2004年 4月 慶應義塾大学大学院理工学研究科総合デザイン工学専攻博士前期課程入学

  2006年 3月 慶應義塾大学大学院理工学研究科総合デザイン工学専攻博士前期課程修了

  2006年 4月 慶應義塾大学大学院理工学研究科総合デザイン工学専攻博士後期過程入学

  2009年 3月 慶應義塾大学大学院理工学研究科総合デザイン工学専攻博士後期過程修了

  2009年 4月 岡山県立大学 情報工学部 情報通信工学科 助教 現在に至る

■学位:

  博士(工学)

   マルチスペクトル画像計測による脳組織の内因性信号解析法に関する研究

■学術雑誌論文:

Y. Tokuda, K. Sakaguchi, Y. Yamaguchi, and K. Takano, “Multiple intersection properties of optical resonance modes in metallic metamaterials,” AIP Advances 7(3), 035209 (2017).

Y. Tokuda, K. Takano, Y. Yamaguchi, K. Sakaguchi, and M. Nakajima, “Quasi-dielectric characteristics of stacked metallic metamaterials,” Jpn. J. Appl. Phys. 56(3), 030306 (2017).

Y. Tokuda, K. Sakaguchi, K. Takano, Y. Yamaguchi, and T. Fukushima, “Crossing behaviors of optical resonance modes in metallic metamaterials,” Appl. Phys. Express 9(3), 032201 (2016).

T. Fukushima, K. Sakaguchi, and Y. Tokuda, “Light propagation in a Penrose unilluminable room,” Opt. Express 23(13),17431?17436 (2015).

Y. Tokuda, K. Sakaguchi, K. Takano, T. Fukushima, and M. Hangyo, “Investigation of fade-out mechanism of resonance modes in optical transmission using stacked metallic sub-wavelength slit arrays,” J. Appl. Phys. 115 (24), 243104 (2014).

T. Fukushima, S. Shinohara, S. Sunada, T. Harayama, K. Sakaguchi, and Y. Tokuda, “Lasing of TM modes in a two-dimensional GaAs microlaser,” Opt. Express 22(10), 11912-11917 (2014).

T. Fukushima, S. Shinohara, S. Sunada, T. Harayama, K. Arai, K. Sakaguchi, and Y. Tokuda, “Selective excitation of lowest-order transverse ring modes in a quasi-stadium laser diode,” Opt. Lett. 38(20), 4158-4161 (2013).

T. Fukushima, K. Sakaguchi, M. Hangyo, and Y. Tokuda, “Analysis of resonator modes in two-dimensional laser cavities containing a left-handed material,” Opt. Rev. 20(4), 293-295 (2013).

Y. Tokuda, K. Sakaguchi, T. Nishihara, K. Takano, T. Fukushima, and M. Hangyo, “Spectrometric functions of multi-stacked metallic plates with modulated slit arrays,” Appl. Phys. Express 6(6), 062602 (2013).

Y. Tokuda, K. Sakaguchi, K. Takano, T. Fukushima, and M. Hangyo, “Remarkable transmission characteristics of optical waves through modulated double-layered metallic slit arrays,” AIP Advances 2(4), 042112 (2012).

T. Fukushima, K. Sakaguchi, and Y. Tokuda, “Quality factor of circular laser diode beam tailored by optical interference,” Opt. Rev. 19(5), 328-331 (2012).

Y. Tokuda, H. Takaiwa, K. Sakaguchi, Y. Yakiyama, K. Takano, K. Akiyama, T. Fukushima, and M. Hangyo, “Optical phased array functions in double-layered metallic plate systems with artificially modulated slit arrays,” Appl. Phys. Express 5, 042502 (2012).

T. Fukushima, S. Sunada, T. Harayama, K. Sakaguchi, and Y. Tokuda,“Lowest order axial and ring mode lasing in confocal quasi-stadium laser diodes,” Appl. Opt. 51(14), 2515-2520 (2012)

T. Fukushima, K. Sakaguchi, and Y. Tokuda, “Laser diode beam shaping by optical Interference,” Opt. Rev. 18(3), 287-292 (2011).

K. Sakaguchi, S. Furukawa, S. Matsuo, N. Sakashita, T. Katsura, K. Yamazaki, H. Kawaguchi, A. Maki and E. Okada, “Influence of a skull cranial window on the measurement of haemoglobin concentration in cortical tissue by multi-spectral imaging analysis,” Optical Review 16(2), 74-80, (2009).

H. Kawaguchi, N. Okui, K. Sakaguchi and E. Okada “Theoritical analysis of crosstalk between oxygenated and deoxygenated haemoglobin in focal brain-activation measurements by near-infrared topography,” Opto-Electronics Review 16(4), 404-412 (2008).

K. Sakaguchi, T. Tachibana, S. Furukawa, T. Katsura, K. Yamazaki, H. Kawaguchi, A. Maki and E. Okada, “Experimental prediction of wavelength-dependent pathlength factor for optical intrinsic signal analysis,” Applied Optics 46(14), 2769-2777 (2007).

■国際会議発表:

S. Matsuo, K. Sakaguchi, T. Katsura, K. Yamazaki, H. Kawaguchi, A. Maki, and E. Okada, “Comparison of Algorithms to Calculate Cortical Blood Flow of Guinea Pigs by Laser Speckle Method,” 6th International Conference on Optics-photonics Design and Fabrication Taipei, Taiwan (2008).

K. Sakaguchi, S. Furukawa, T. Katsura, K. Yamazaki, A. Maki, H. Kawaguchi and E. Okada, “Statistical analysis of spatial extent of hemoglobin-concentration change in exposed cortex measured by multi-spectral imaging,” Biomedical Optics Topical Meeting and Tabletop Exhibit, St. Petersburg, U.S.A. (2008).

S. Matsuo, K. Sakaguchi, T. Katsura, K. Yamazaki, H. Kawaguchi, A. Maki, H. Fujii and E. Okada, “Measurement of distribution of blood-flow change in exposed cortex by laser speckle flowgraphy,” Asia Pacific Laser Symposium, Nagoya, Japan (2008).

K. Sakaguchi, S. Furukawa, T. Katsura, K. Yamazaki, A. Maki, H. Kawaguchi and E. Okada, “Multi-spectral imaging of change in haemoglobin concentration in exposed brain caused by auditory stimulation,” Asia Pacific Laser Symposium, Nagoya, Japan (2008).

K. Sakaguchi, S. Furukawa, T. Katsura, K. Yamazaki, A. Maki, H. Kawaguchi and E. Okada, “Path-length correction for the haemoglobin-concentration measurement using the skull cranial window by multi-spectral imaging analysis,” The European Conference on Biomedical Optics, Munich, Germany (2007).

S. Matsuo, K. Sakaguchi, S. Furukawa, T. Katsura, K. Yamazaki, H. Kawaguchi, A. Maki, H. Fujii and E. Okada, “Measurement of the Change in the Cortical Blood Flow of Guinea Pigs by Laser Speckle Flowgraphy,” 3rd Asian and pacific rim symposium on biophotonics & Biophotonics downunder, Cairns, Australia (2007).

K. Sakaguchi, S. Furukawa, T. Katsura, K. Yamazaki, A. Maki, H. Kawaguchi and E. Okada, “Experimental prediction of wavelength-dependent pathlength factor for the multi-spectral imaging analysis of optical intrinsic signal using the skull cranial window,” 3rd Asian and pacific rim symposium on biophotonics & Biophotonics downunder, Cairns, Australia (2007).

S. Furukawa, K. Sakaguchi, T. Katsura, K. Yamazaki, A. Maki, H. Kawaguchi and E. Okada, “Influence of skull cranial window on haemoglobin concentration measurement by multi-spectral imaging,” the 9th International Conference on Optics Within Life Sciences, Taipei, Taiwan (2006).

T. Okuyama, K. Sakaguchi, H. Kawaguchi, and E. Okada, “Experimental estimation of wavelength dependence of optical path length in brain function measurement by near infrared spectroscopy,” the 9th International Conference on Optics Within Life Sciences, Taipei, Taiwan (2006).

K. Sakaguchi, S. Furukawa, T. Katsura, K. Yamazaki, A. Maki, H. Kawaguchi and E. Okada, “Path-length correction for multi-spectral imaging of haemoglobin-concentration change in exposed cortex,” the 9th International Conference on Optics Within Life Sciences, Taipei, Taiwan (2006).

K. Sakaguchi, S. Furukawa, T. Katsura, K. Yamazaki, A. Maki, H. Kawaguchi and E. Okada, “Experimental prediction of wavelength dependence of optical path length for optical intrinsic signal analysis,” The 19th Annual meeting of the IEEE Lasers & Electro-Optics Society, Montreal, Canada (2006).

K. Sakaguchi, S. Furukawa, T. Katsura, A. Maki, H. Kawaguchi and E. Okada, “Path length correction for haemoglobin concentration measurement in exposed cortex by multi-spectral imaging,” Biomedical Optics Topical Meeting and Tabletop Exhibit, Fort Lauderdale, U.S.A. (2006).

K. Sakaguchi, T. Tachibana, K. Yokoyama, Y. Watanabe, S. Sugio, T. Katsura, A. Maki, H. Kawaguchi, H. Fujii and E. Oakada, “Measurements of blood volume and flow in the cortical tissue of guinea pigs with optical imaging system,” 6th Asian-Pacific Conference on Medical and Biological Engineering Tsukuba, Japan, (2005).

K. Sakaguchi, T. Tachibana, S. Furukawa, T. Katsura, A. Maki, H. Kawaguchi and E. Okada, “Estimation of path length factor for measurement of haemoglobin concentration in the exposed cortical tissue,” The European Conference on Biomedical Optics, Munich, Germany (2005).

T. Tachibana, K. Sakaguchi, K. Yokoyama, Y. Watanabe, S. Sugio, T. Katsura, A. Maki, H. Kawaguchi, H. Fujii and E. Okada, “Optical imaging system for measurement of blood volume and flow in exposed brain cortex,” The Second Asian and Pacific Rim Symposium on Biophotonics, Taipei, Taiwan (2004).

K. Sakaguchi, K. Yokoyama, Y. Watanabe and E. Okada, “Estimation of wavelength-dependent path length factor from multi-spectral images of cortical phantom,” The Second Asian and Pacific Rim Symposium on Biophotonics, Taipei, Taiwan (2004).

■解説論文:

岡田英史,川口拓之,坂口浩一郎,山田幸生,“生体光伝播シミュレーションの近赤外線分光法への応用,”J Jpn Coll Angiol, 49, 113-119 (2009).

川口拓之,坂口浩一郎,岡田英史,“近赤外光を用いた脳機能イメージング,” O plus E, 30(6), 595-598 (2008).