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Nonvolatile optical memory with spin vertical-cavity surface emittinglasers

Research Project

Project/Area Number 23656051
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Applied optics/Quantum optical engineering
Research InstitutionNara Institute of Science and Technology

Principal Investigator

IKEDA Kazuhiro  奈良先端科学技術大学院大学, 物質創成科学研究科, 助教 (70541738)

Project Period (FY) 2011 – 2012
Project Status Completed (Fiscal Year 2012)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2012: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2011: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Keywords光情報処理 / 光エレクトロニクス / 光制御 / スピンVCSEL / スピンフォトニクス / 半導体光デバイス
Research Abstract

Our nonvolatile optical memory utilizes a vertical-cavity surface-emitting laser (VCSEL) grown on GaAs(110) substrate which has a long electron spin relaxation time. The readout is done by circularly polarized lasing with electrical spin injection. As the first step, we tried to demonstrate lasing under spin unpolarized current injection using a paramagnetic contact. However, it was found that the improvement of the VCSEL structure is necessary. An oxidized current confinement structure for reduction of threshold current, and a structure for current injection at a layer under the upper DBR with a lower crystal quality were investigated, and their fabrication processes have been established.

Report

(3 results)
  • 2012 Annual Research Report   Final Research Report ( PDF )
  • 2011 Research-status Report
  • Research Products

    (11 results)

All 2012 2011 Other

All Journal Article (3 results) (of which Peer Reviewed: 3 results) Presentation (7 results) Remarks (1 results)

  • [Journal Article] Circularly polarized lasing over wide wavelength range in spin-controlled Absorption [103/cm] (110) vertical-cavity surface-emitting laser2012

    • Author(s)
      S. Iba, S. Koh, and H. Kawaguchi
    • Journal Title

      Solid State Commun.

      Volume: 152 Issue: 16 Pages: 1518-1521

    • DOI

      10.1016/j.ssc.2012.06.009

    • Related Report
      2012 Annual Research Report 2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Comparison of measurement techniques for electron spin relaxation time in a GaAs/AlGaAs multiple quantum well2012

    • Author(s)
      N. Yokota, K. Ikeda, and H. Kawaguchi
    • Journal Title

      Physica E: Low-dimensional Systems and Nanostructures

      Volume: 44 Issue: 7-8 Pages: 1176-1181

    • DOI

      10.1016/j.physe.2012.01.006

    • Related Report
      2012 Final Research Report 2011 Research-status Report
    • Peer Reviewed
  • [Journal Article] Control of Electron Spin Relaxation Dynamics and Circularly Polarized Lasing in Semiconductor Lasers2011

    • Author(s)
      黄晋二、揖場聡、池田和浩、河口仁司
    • Journal Title

      Hyomen Kagaku

      Volume: 32 Issue: 12 Pages: 755-760

    • DOI

      10.1380/jsssj.32.755

    • NAID

      130004486621

    • ISSN
      0388-5321, 1881-4743
    • Related Report
      2012 Final Research Report 2011 Research-status Report
    • Peer Reviewed
  • [Presentation] "顕微PL法を用いた電子スピン緩和時間測定におけるスピン拡散効果"2012

    • Author(s)
      池田和浩、好井淳平、河口仁司
    • Organizer
      2012 秋季応用物理学会学術講演会14a-H6-3
    • Place of Presentation
      松山
    • Year and Date
      2012-09-14
    • Related Report
      2012 Final Research Report
  • [Presentation] Circularly polarized lasing in (110) quantum well-based spin laser2012

    • Author(s)
      S. Iba, S. Koh, K. Ikeda, and H.Kawaguchi
    • Organizer
      SPIE Optics + Photonics 2012
    • Place of Presentation
      San Diego, CA
    • Year and Date
      2012-08-16
    • Related Report
      2012 Final Research Report
  • [Presentation] (110)スピン面発光半導体レーザの室温円偏光発振特性2011

    • Author(s)
      揖場 聡、黄 晋二、池田 和浩、河口 仁司
    • Organizer
      The 16th Symposium on the Physics and Application of Spin-Related Phenomena in Semiconductors (PASPS-16)
    • Place of Presentation
      東京
    • Year and Date
      2011-11-29
    • Related Report
      2012 Final Research Report
  • [Presentation] GaAs/AlGaAs MQW の電子スピン緩和時間測定法に関する検討2011

    • Author(s)
      横田信英、池田和浩、片山健夫、黄晋二、河口仁司
    • Organizer
      2011 年秋季応用物理学会学術講演会1p-S-5
    • Place of Presentation
      山形
    • Year and Date
      2011-09-01
    • Related Report
      2012 Final Research Report
  • [Presentation] (110)スピン面発光半導体レーザの広帯域円偏光発振2011

    • Author(s)
      揖場 聡、黄 晋二、池田 和浩、河口 仁司
    • Organizer
      2011 年秋季応用物理学会学術講演会1p-S-8
    • Place of Presentation
      山形
    • Year and Date
      2011-09-01
    • Related Report
      2012 Final Research Report
  • [Presentation] GaAs/AlGaAs MQWの電子スピン緩和時間測定法に関する検討2011

    • Author(s)
      横田信英、池田和浩、片山健夫、黄晋二、河口仁司
    • Organizer
      2011年秋季応用物理学会学術講演会
    • Place of Presentation
      山形大学
    • Related Report
      2011 Research-status Report
  • [Presentation] 顕微PL 法を用いた電子スピン緩和時間測定におけるスピン拡散効果

    • Author(s)
      池田和浩、好井淳平、河口仁司
    • Organizer
      2012年秋季応用物理学会学術講演会
    • Place of Presentation
      松山大学
    • Related Report
      2012 Annual Research Report
  • [Remarks]

    • URL

      http://www1.ocn.ne.jp/~kazikeda

    • Related Report
      2012 Final Research Report

URL: 

Published: 2011-08-05   Modified: 2019-07-29  

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