Room-temperature spin-controlled optoelectronic devices

Stephan Hoevel, Nils C. Gerhardt, Martin R. Hofmann, Fang Yuh Lo, Dirk Reuter, Andreas D. Wieck, Ellen Schuster, Werner Keune

研究成果: 書貢獻/報告類型會議論文篇章

摘要

We present three spin-dependent optoelectronic devices for spin controlled photonics working at room temperature. A spin controlled light emitting diode is demonstrated which exhibits spin injection through Fe/Tb-multilayers at room temperature and in remanence. Furthermore, we show that a classical vertical resonator laser can amplify spin information even at room temperature due to its nonlinearity at threshold. Accordingly, in combination with the injectors mentioned above it can be used as a spin-controlled emitter, allowing efficient spin-controlled polarization switching of its optical output. Due to the stability of light polarization in comparison to the spin orientation in a semiconductor, spin information can thus be transmitted over long distances and at room temperature with such devices. For detection of such spin information, we present a spin detector. It consists of a pin-diode with Fe/Tb-multilayer contacts and we show that it can create a polarization dependent spin-current also at room temperature and without applied magnetic fields.

原文英語
主出版物標題Conference on Lasers and Electro-Optics, CLEO 2008
發行者Optical Society of America
ISBN(列印)9781557528599
出版狀態已發佈 - 2008
對外發佈
事件Conference on Lasers and Electro-Optics, CLEO 2008 - San Jose, CA, 美国
持續時間: 2008 5月 42008 5月 9

出版系列

名字Optics InfoBase Conference Papers
ISSN(電子)2162-2701

會議

會議Conference on Lasers and Electro-Optics, CLEO 2008
國家/地區美国
城市San Jose, CA
期間2008/05/042008/05/09

ASJC Scopus subject areas

  • 儀器
  • 原子與分子物理與光學

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