About OTANI KEITA
About 東北大 電気通信研 ナノ・スピン実験施設
About 電子情報通信学会誌
About technological review
About optoelectronics
About solid state device
About optical element
About MBE growth
About quantum well laser
About cascade process
About quantum cascade laser
About photonic device
About molecular beam epitaxy
About Other solid-state devices
About Semiconductor lasers
About 進化
About フォトニックデバイス
About 半導体レーザ
About 現状
About 展望
About 量子カスケードレーザ
About 短波
About 長波
About 研究
About 動向