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We are interested in revealing the elementary processes in important surface and interface phenomena such as catalysis, crystal growth and oxidation by using nonlinear optical spectroscopies. We clarify the mechanisms of nonlinear optical interaction of light with material surfaces, realize new materials on surfaces, and pursue new physics at surfaces. Youtube lab guidance publication repository

Optical second harmonic (SHG) spectroscopy of surface and interface phenomena
By optical second harmonic (SHG) spectroscopy we monitor the change of surface and interface electronic levels, orientation and the order of the surface bonds and adsorbates, during important surface and interface phenomena.

Vibrational spectroscopy of surface adsorbates by observing Raman scattering and sum frequency generation (SFG)
We investigate the mechanism of surface and interface phenomena such as surface oxidation or catalytic reaction, by analyzing the vibration of molecules involved through Raman scattering and sum frequency generation (SFG).

Materials to be realized only on surfaces and in nanowire structures
The properties of atoms, molecules, and films on surfaces and in nanowires are dramatically different from those in the free state. Investigating the origin of this difference, we take advantage of it to realize materials with properties possible only on surfaces and in nanowires.

Development of an optical second harmonic (SHG) microscope and an optical sum frequency (SFG) microscope
We develop an optical second harmonic (SHG) microscope and an optical sum frequency (SFG) microscope in order to observe the spatial distribution of electronic states of interesting surfaces and draw new physics from the nonlinear optical images of catalysts, semiconductors and living organisms.

Surface fabrication by femto second laser pulses
With focused ultrashort light pulses of duration 120fs we fabricate material surfaces with spatial resolution much better than the diffraction limit with the help of the nonlinear optical effect. Our goal is the basic understanding and the application of the fabrication mechanism.

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Mizutani Lab. :

Japan Advanced Institute of Science and Technology School of Materials Science 1- 1, Asahidai, Nomi, Ishikawa 923-1292 Japan phone: +81-761-51-1521 facsimile: +81-761-51-1149