Takeshi Yasui

Summary

Affiliation: Osaka University
Country: Japan

Publications

  1. doi request reprint Fiber-based, hybrid terahertz spectrometer using dual fiber combs
    Takeshi Yasui
    Graduate School of Engineering Science, Osaka University, 1 3 Machikaneyama cho, Toyonaka, Osaka 560 8531, Japan
    Opt Lett 35:1689-91. 2010
  2. ncbi request reprint Ex vivo and in vivo second-harmonic-generation imaging of dermal collagen fiber in skin: comparison of imaging characteristics between mode-locked Cr:forsterite and Ti:sapphire lasers
    Takeshi Yasui
    Graduate School of Engineering Science, Osaka University, 1 3 Machikaneyama cho, Toyonaka, Osaka 560 8531, Japan
    Appl Opt 48:D88-95. 2009
  3. ncbi request reprint Observation of dermal collagen fiber in wrinkled skin using polarization-resolved second-harmonic-generation microscopy
    Takeshi Yasui
    Graduate School of Engineering Science, Osaka University, 1 3 Machikaneyama, Toyonaka, Osaka 560 8531, Japan
    Opt Express 17:912-23. 2009
  4. ncbi request reprint Real-time terahertz color scanner for moving objects
    Takeshi Yasui
    Graduate School of Engineering Science, Osaka University, 1 3 Machikaneyama, Toyonaka, Osaka 560 8531, Japan
    Opt Express 16:1208-21. 2008
  5. ncbi request reprint Determination of collagen fiber orientation in human tissue by use of polarization measurement of molecular second-harmonic-generation light
    Takeshi Yasui
    Graduate School of Engineering Science, Osaka University, 1 3 Machikaneyama, Toyonaka, Osaka 560 8531, Japan
    Appl Opt 43:2861-7. 2004
  6. ncbi request reprint Characterization of collagen orientation in human dermis by two-dimensional second-harmonic-generation polarimetry
    Takeshi Yasui
    Osaka University, Graduate School of Engineering Science, Toyonaka, Osaka, 560 8531 Japan
    J Biomed Opt 9:259-64. 2004
  7. ncbi request reprint In vivo observation of age-related structural changes of dermal collagen in human facial skin using collagen-sensitive second harmonic generation microscope equipped with 1250-nm mode-locked Cr:Forsterite laser
    Takeshi Yasui
    Graduate School of Engineering Science, Osaka University, 1 3 Machikaneyama, Toyonaka, Osaka 560 8531, Japan
    J Biomed Opt 18:031108. 2013
  8. doi request reprint In vivo visualization of dermal collagen fiber in skin burn by collagen-sensitive second-harmonic-generation microscopy
    Ryosuke Tanaka
    Osaka University, Graduate School of Engineering Science, 1 3 Machikaneyama, Toyonaka, Osaka 560 8531, Japan
    J Biomed Opt 18:61231. 2013
  9. doi request reprint In vivo observation of age-related structural changes of dermal collagen in human facial skin using collagen-sensitive second harmonic generation microscope equipped with 1250-nm mode-locked Cr:Forsterite laser
    Takeshi Yasui
    Osaka University, Graduate School of Engineering Science, 1 3 Machikaneyama, Toyonaka, Osaka 560 8531, Japan
    J Biomed Opt 18:31108. 2013
  10. doi request reprint Spectrally interleaved, comb-mode-resolved spectroscopy using swept dual terahertz combs
    Yi Da Hsieh
    Graduate School of Engineering Science, Osaka University, 1 3 Machikaneyama, Toyonaka, Osaka 560 8531, Japan
    Sci Rep 4:3816. 2014

Collaborators

  • Toyonobu Yamashita
  • Tetsuji Hirao
  • Hiroyuki Murota
  • Mamoru Hashimoto
  • Shuko Yokoyama
  • Tsutomu Araki
  • Yi Da Hsieh
  • Ryosuke Tanaka
  • Yoshiyuki Sakaguchi
  • Francis Hindle
  • Hajime Inaba
  • Yuki Iyonaga
  • Kaoru Minoshima
  • Kunihiko Sasaki
  • Shu Ichiro Fukushima
  • Takeshi Matsumoto
  • Kenji Matsumoto
  • Yuji Tanaka
  • Yuki Hagihara
  • Toshiyuki Yokoyama
  • Masaki Nose
  • Ryotaro Nakamura

Detail Information

Publications16

  1. doi request reprint Fiber-based, hybrid terahertz spectrometer using dual fiber combs
    Takeshi Yasui
    Graduate School of Engineering Science, Osaka University, 1 3 Machikaneyama cho, Toyonaka, Osaka 560 8531, Japan
    Opt Lett 35:1689-91. 2010
    ..The spectrometer features compactness, robustness, flexibility, and cost effectiveness, in addition to high spectral resolution in rapid data acquisition, and has the potential to become a powerful tool for practical applications...
  2. ncbi request reprint Ex vivo and in vivo second-harmonic-generation imaging of dermal collagen fiber in skin: comparison of imaging characteristics between mode-locked Cr:forsterite and Ti:sapphire lasers
    Takeshi Yasui
    Graduate School of Engineering Science, Osaka University, 1 3 Machikaneyama cho, Toyonaka, Osaka 560 8531, Japan
    Appl Opt 48:D88-95. 2009
    ..The results indicate the suitability of the Cr:forsterite laser-based SHG microscope for in vivo imaging of human skin...
  3. ncbi request reprint Observation of dermal collagen fiber in wrinkled skin using polarization-resolved second-harmonic-generation microscopy
    Takeshi Yasui
    Graduate School of Engineering Science, Osaka University, 1 3 Machikaneyama, Toyonaka, Osaka 560 8531, Japan
    Opt Express 17:912-23. 2009
    ..The method proposed has the potential to become a powerful non-invasive tool for assessment of cutaneous photoaging...
  4. ncbi request reprint Real-time terahertz color scanner for moving objects
    Takeshi Yasui
    Graduate School of Engineering Science, Osaka University, 1 3 Machikaneyama, Toyonaka, Osaka 560 8531, Japan
    Opt Express 16:1208-21. 2008
    ..The achieved THz-TDS imaging rate is 23,200 pixels per second. This proposed THz-TDS line scanner has the potential to become a powerful tool for monitoring moving objects in various real-world applications...
  5. ncbi request reprint Determination of collagen fiber orientation in human tissue by use of polarization measurement of molecular second-harmonic-generation light
    Takeshi Yasui
    Graduate School of Engineering Science, Osaka University, 1 3 Machikaneyama, Toyonaka, Osaka 560 8531, Japan
    Appl Opt 43:2861-7. 2004
    ..The proposed method provides a powerful research and diagnostic tool for examining the collagen orientation in human tissues...
  6. ncbi request reprint Characterization of collagen orientation in human dermis by two-dimensional second-harmonic-generation polarimetry
    Takeshi Yasui
    Osaka University, Graduate School of Engineering Science, Toyonaka, Osaka, 560 8531 Japan
    J Biomed Opt 9:259-64. 2004
    ..The proposed method will be a powerful tool for monitoring the microscopic distribution of the collagen fiber orientation in the human dermis...
  7. ncbi request reprint In vivo observation of age-related structural changes of dermal collagen in human facial skin using collagen-sensitive second harmonic generation microscope equipped with 1250-nm mode-locked Cr:Forsterite laser
    Takeshi Yasui
    Graduate School of Engineering Science, Osaka University, 1 3 Machikaneyama, Toyonaka, Osaka 560 8531, Japan
    J Biomed Opt 18:031108. 2013
    ..The in vivo collagen-sensitive SHG microscope will be a powerful tool in fields such as cosmeceutical sciences and anti-aging dermatology...
  8. doi request reprint In vivo visualization of dermal collagen fiber in skin burn by collagen-sensitive second-harmonic-generation microscopy
    Ryosuke Tanaka
    Osaka University, Graduate School of Engineering Science, 1 3 Machikaneyama, Toyonaka, Osaka 560 8531, Japan
    J Biomed Opt 18:61231. 2013
    ..These results and discussions imply a potential of SHG microscopy as a minimally invasive, highly quantitative tool for skin burn assessment...
  9. doi request reprint In vivo observation of age-related structural changes of dermal collagen in human facial skin using collagen-sensitive second harmonic generation microscope equipped with 1250-nm mode-locked Cr:Forsterite laser
    Takeshi Yasui
    Osaka University, Graduate School of Engineering Science, 1 3 Machikaneyama, Toyonaka, Osaka 560 8531, Japan
    J Biomed Opt 18:31108. 2013
    ..The in vivo collagen-sensitive SHG microscope will be a powerful tool in fields such as cosmeceutical sciences and anti-aging dermatology...
  10. doi request reprint Spectrally interleaved, comb-mode-resolved spectroscopy using swept dual terahertz combs
    Yi Da Hsieh
    Graduate School of Engineering Science, Osaka University, 1 3 Machikaneyama, Toyonaka, Osaka 560 8531, Japan
    Sci Rep 4:3816. 2014
    ..5 MHz and enhanced spectral accuracy of 8.39 × 10(-7) in the THz region. The proposed method is a powerful tool for simultaneously achieving high resolution, high accuracy, and broad spectral coverage in THz spectroscopy...
  11. doi request reprint Widely and continuously tunable terahertz synthesizer traceable to a microwave frequency standard
    Takeshi Yasui
    Graduate School of Engineering Science, Osaka University, Osaka, Japan
    Opt Express 19:4428-37. 2011
    ..This THz synthesizer will be a powerful tool for broadband, high-precision THz spectroscopy and THz frequency metrology...
  12. ncbi request reprint Terahertz spectrum analyzer based on a terahertz frequency comb
    Shuko Yokoyama
    Graduate School of Engineering Science, Osaka University, 1 3 Machikaneyama, Toyonaka, Osaka 560 8531, Japan
    Opt Express 16:13052-61. 2008
    ..This spectrum analyzer has the potential to become a powerful tool for THz frequency metrology...
  13. doi request reprint Enhancement of spectral resolution and accuracy in asynchronous-optical-sampling terahertz time-domain spectroscopy for low-pressure gas-phase analysis
    Takeshi Yasui
    Graduate School of Engineering Science, Osaka University, 1 3 Machikaneyama, Toyonaka, Osaka 560 8531, Japan
    Opt Express 20:15071-8. 2012
    ..ASOPS-THz-TDS will open a new door to gas-phase spectroscopy of multiple chemical species in the field of atmospheric gas analysis...
  14. doi request reprint A distance meter using a terahertz intermode beat in an optical frequency comb
    Shuko Yokoyama
    Graduate School of Engineering Science, Osaka University, 1 3 Machikaneyama, Toyonaka, Osaka 560 8531, Japan
    Opt Express 17:17324-37. 2009
    ..820 microm from its phase measurement. Absolute distance measurement using 1.056 THz and 8.187 GHz intermode beats was also demonstrated in the range of 10 mm, resulting in a precision of 0.688 microm...
  15. doi request reprint Absolute distance measurement of optically rough objects using asynchronous-optical-sampling terahertz impulse ranging
    Takeshi Yasui
    Graduate School of Engineering Science, Osaka University, 1 3 Machikaneyama, Toyonaka, Osaka 560 8531, Japan
    Appl Opt 49:5262-70. 2010
    ..The reported method will become a powerful tool for nondestructive inspection of large-scale structures...