Laser-applied Imaging Research Unit

In health science and medical diagnostics, the level of the sugar, fat, and cholesterol are measured using blood taken from the human body. However, to reduce the stress on the human body and for the continuous monitoring of a living person, noninvasive methods are required. The unit investigates noninvasive methods for the monitoring of living human bodies using optical technology based on the interactions between light and materials, such as absorption, fluorescence, Raman scattering and the nonlinear optical effect. As a first step, we are attempting to measure the hardness of the lens of the human eye by a noninvasive method.

Research Fields

Physics / Engineering / Materials Sciences / Biology & Biochemistry / Clinical Medicine / Agricultural Sciences / Space Science

Research Subjects

• Medical photonics
• Imaging
• Non-invasive measurement

Publications

1. Kudo M., Wada S., Ogawa T., Namiki S., Ozawa Y., Tsubota K., Shinjo A., and Suzuki K.:
   “Possibility of medical prevention of age-related macular degeneration using confocal micro-imaging system"
   Int. J. Nanomanufacturing (Accepted).
2. Kudo M., Wada S., Ogawa T., Namiki S., Shinjo A., Suzuki K., Ozawa Y., and Tsubota K.:
   "Confocal micro-imaging system for organic materials"
   The Third International Conference on nanoManufacturing nanoMan2012 217-220, (2012).
3. Louchev O. A., Wada S., Saito N., Hatano H., and Kitamura K.:
   "Pulsed laser operated high rate charging of Fe-doped LiNbO₃ crystal for electron emission"
   J. Appl. Phys. 112, 073107 (2012).
4. Yomogida S., Higuchi M., Ogawa T., Wada S., and Takahashi J.:
   "Float zone growth and anisotropic spectral properties of Nd:LaVO₄ single crystals"
   J. Cryst. Growth 359, 20-24 (2012).
5. Maeda Y., Yumoto M., Saito N., Ogawa T., Yamashita M., and Wada S.:
   "Generation of Stable Picosecond Pulses from an Electronically Wavelength-Tuned Laser for Material Processing"
   JLMN-Journal of Laser Micro/Nanoengineering 6, 20-22 (2011).
6. Maeda Y., Yumoto M., Saito N., Ogawa T., Kurokawa K., Nakano A., Yamashita M., and Wada S.:
   "Broadly Tunable UV-Blue Picosecond Pulsed Laser and Its Application for Biological Imaging"
   Opt. Rev. 17, 305-308 (2010).
7. Yumoto M., Maeda Y., Saito N., Ogawa T., Yamashita M., and Wada S.:
   "Multi-Wavelength Spectroscopic Application Using Rapid and Random Wavelength-Tuned Mid-Infrared Light Source"
   Jpn. J. Appl. Phys., 49, 010209 (2010).
8. Yumoto M., Maeda Y., Saito N., Ogawa T., Yamashita M., and Wada S.:
   "Electronic Wavelength Tuning of Tunable Laser with Acousto-Optic Tunable Filter"
   Jpn. J. Appl. Phys. 47, 8411-8415 (2008).
9. Sato H., Saito N., Akagawa K., Wada S., and Tashiro H.:
   "Electronically tunable-laser light sources for near infrared spectroscopy"
   J. Near Infrared Spectrosc. 11, 295-308 (2003).
10. Wada S., Akagawa K., and Tashiro H.:
    "Electronically tuned Ti:sapphire laser"
    Opt. Lett., 21, 731-733 (1996).