Electronics and Information Science Laboratory (Photonic Devices)

- Where you can create novel micro structures that control electrons and photons

・Member    Associate Professor    Jun Ohsawa    Assistant  Professor    Yoshinobu Maeda

・Activity

Not a single efficient and comfortable day would be passed by without hi-tech gadgets in this IT-based modern world. The electronic gadgets, such as cellular phones or compact disc players, are full of miniaturized parts, which take in, process, save, and transmit electronic or optical signals. Our research is focused on creation of these devices including sensors, optical amplifiers, micro electro-mechanical systems. Silicon and compound semiconductor films as well as glass and YAG crystals are employed by full use of new process technologies of micro fabrication.

Main themes

1. Picosecond micro photodetectors on Si films for optical interconnections        2. Optical operational amplifiers using negative nonlinear absorption effect of Er: YAG        3. High-voltage micro solar cells on GaAs and its applications        4. Optical measurement on mechanical properties of micro thin film structures of SiGe        5. Device applications of iron-doped semi-insulation GaAs