2010 Fiscal Year Final Research Report

Research on optical responses of a spin-polarized electron group for spin-nanolasers

Research Project

Project/Area Number	21810017
Research Category	Grant-in-Aid for Research Activity Start-up
Allocation Type	Single-year Grants
Research Field	Microdevices/Nanodevices
Research Institution	Nara Institute of Science and Technology
Principal Investigator	IKEDA Kazuhiro Nara Institute of Science and Technology, 物質創成科学研究科, 助教 (70541738)
Project Period (FY)	2009 – 2010
Keywords	マイクロ・ナノデバイス / 応用光学・量子光工学 / 光物性 / スピンエレクトロニクス
Research Abstract	Nano-fabrication techniques for nano-post lasers have been established. Using the techniques, it has been experimentally confirmed that a long electron spin relaxation time in quantum wells on GaAs (110)(a prospective active layer for spin nanolasers) is preserved in nano-post structures, which indicated possibility of circularly polarized lasing in nano-post spin lasers. Furthermore, investigations on long-range surface plasmon polariton modes on metal-semiconductor structures to miniaturize spin lasers in nano scale have been conducted, which clarified a new structure to obtain efficient mode amplification.