Research themes

Research aim

 It is known that the "geometric shape, crystal, composition of the surface" of the material plays an important role in the design and manufacture of functional materials. In particular, if a desired geometric shape (height, size, density) can be added to the surface, it will be new due to crystallization (amorphization) in addition to electrical / thermal conductivity, magnetism, and optical properties determined by the "shape". It is expected to add material properties. However, process technology in the atmosphere and at room temperature is extremely important for forming "microstructures" on the surface of materials and artificially controlling their geometric shapes and crystallinity. Short pulse laser ablation (short pulse laser processing) is expected to be a promising process technology for creating new functional materials because it can create a crystalline state (amorphous) that is difficult with conventional methods in addition to controlling geometric shapes in the atmosphere and room temperature. It has been.

We have investigated on the following research themes with the aim of clarifying the mechanism of laser surface nano-structure formation. 

・ Measurement of laser behavior in metal by high-speed ablation method ・ In-situ measurement using short pulse electrons 

・ In-situ measurement with a short pulse laser 

We have investigated on the advanced applied research that is being studied by adding a fine structure to the surface of the material. 

・ Improved performance efficiency by reducing the reflectance of solar cells 

・ Improved performance of lithium-ion battery 

・ Production of thin-film carbon for cancer treatment 

・ Joining of multi-materials for the development of autonomous vehicles

・ Virus trap and inactivation 

・ Improved antibacterial effect

 We have also investigated on the development of light sources with the aim of adding new functions to the surface of materials.

・ Development of high-intensity laser 

・ High-intensity THz wave generation