HAYASHIｰKoji

HAYASHI Koji

Title Associate Professor
Department Department of Electrical, Electronic and Computer Engineering
Course Electrical and Electronic Course

Research fields

There are two main classes of solids: crystalline and amorphous. In a crystal, atomic positions exhibit a property called long-range order or translational periodicity. In an amorphous solid, translational periodicity is absent, and there is no long-range order. An amorphous solid is the more advantageous solid compared to a crystal in respect of manufacture cost. It is well-known that amorphous materials show a variety of photoinduced phenomena, such as photodarkening, photoinduced structural change and photoinduced volume expansion. The application of the amorphous materials to optical devices is greatly expected, because these materials are very sensitive to the light. Although a large number of studies have been made on photoinduced phenomena, details of these mechanisms are almost unknown. Our goal is to fabricate new functional optical devices using these materials. Therefore, in our laboratory, we are researching fundamental optical and electronic properties of these materials by using UV-VIS-IR light and synchrotron orbital radiation.

Research Keywords

Semiconductor, Fundamental Property of Material, Optical Property of Material

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