Takeshi Yasui

Summary

Affiliation: Osaka University
Country: Japan

Publications

  1. ncbi request reprint Terahertz paintmeter for noncontact monitoring of thickness and drying progress in paint film
    Takeshi Yasui
    Graduate School of Engineering Science, Osaka University, 1 3 Machikaneyama, Toyonaka, Osaka 560 8531, Japan
    Appl Opt 44:6849-56. 2005
  2. doi request reprint Real-time monitoring of continuous-wave terahertz radiation using a fiber-based, terahertz-comb-referenced spectrum analyzer
    Takeshi Yasui
    Graduate School of Engineering Science, Osaka University, 1 3 Machikaneyama, Toyonaka, Osaka 560 8531, Japan
    Opt Express 17:17034-43. 2009
  3. 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
  4. 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
  5. 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
  6. 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
  7. 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
  8. 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
  9. 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
  10. 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

Collaborators

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

Detail Information

Publications18

  1. ncbi request reprint Terahertz paintmeter for noncontact monitoring of thickness and drying progress in paint film
    Takeshi Yasui
    Graduate School of Engineering Science, Osaka University, 1 3 Machikaneyama, Toyonaka, Osaka 560 8531, Japan
    Appl Opt 44:6849-56. 2005
    ..The THz paintmeter can be a powerful tool for quality control of the paint film on the in-process monitoring of car body painting...
  2. doi request reprint Real-time monitoring of continuous-wave terahertz radiation using a fiber-based, terahertz-comb-referenced spectrum analyzer
    Takeshi Yasui
    Graduate School of Engineering Science, Osaka University, 1 3 Machikaneyama, Toyonaka, Osaka 560 8531, Japan
    Opt Express 17:17034-43. 2009
    ..Furthermore, the potential of the THz spectrum analyzer was effectively demonstrated by real-time monitoring of the spectral behavior of the AFMC source and a photomixing source of two free-running CW lasers at adjacent wavelengths...
  3. 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...
  4. 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...
  5. 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...
  6. 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...
  7. 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...
  8. 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...
  9. 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...
  10. 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...
  11. 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...
  12. pmc 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...
  13. 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...
  14. 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...
  15. 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...
  16. 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...
  17. 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...