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/報告類型會議貢獻

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2008 Conference on Quantum Electronics and Laser Science Conference on Lasers and Electro-Optics, CLEO/QELS
發行者Optical Society of America
ISBN(列印)1557528594, 9781557528599
DOIs
出版狀態已發佈 - 2008
對外發佈Yes
事件Conference on Quantum Electronics and Laser Science Conference on Lasers and Electro-Optics, CLEO/QELS 2008 - San Jose, CA, 美国
持續時間: 2008 五月 42008 五月 9

會議

會議Conference on Quantum Electronics and Laser Science Conference on Lasers and Electro-Optics, CLEO/QELS 2008
國家美国
城市San Jose, CA
期間2008/05/042008/05/09

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

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