Development of spin-controlled laser with circularly polarized emission

2016 Fiscal Year Final Research Report

• Project/Area Number: 26709027
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Partial Multi-year Fund
• Research Field: Electron device/Electronic equipment
• Research Institution: National Institute of Advanced Industrial Science and Technology
• Principal Investigator: Iba Satoshi 国立研究開発法人産業技術総合研究所, スピントロニクス研究センター, 研究員 (90647059)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: スピン / 円偏光 / 半導体量子井戸 / 結晶成長 / 発光

Outline of Final Research Achievements

Spin-controlled lasers, which can emit circularly polarized coherent light, have become a focus of interest. Semiconductor quantum wells (QWs) are crucial building blocks of the spin-lasers. The main purpose of our research project is to improve characteristics of the QWs in order to realize high performance spin-lasers. In this study, we successfully demonstrated great improvement of optical and spin properties in the QWs by using (110)-oriented GaAs substrate through systematic crystal growth experiment. Our findings suggest that the newly developed (110) QWs indeed have greater advantages than the conventional (100)QWs for use in spin-lasers.

Free Research Field

スピントロニクス