Towards high-frequency operation of spin-lasers

ORAL

Abstract

Injecting spin-polarized carriers in lasers enables room-temperature spintronic applications,not limited to magnetoresistance. While steady-state operation of such spin-lasers has already revealed an improved operation as compared to their conventional (spin-unpolarized) counterparts [1-4], the main opportunities lie in their-high frequency operation [5-9]. We systematically show how our accurate electronic structure and microscopic gain calculations could guide the improved dynamical operation of spin-lasers at modulation frequencies beyond what is possible in conventional lasers [6-9]. [1] J. Rudolph et al., Appl. Phys. Lett. 87, 241117 (2005). [2] M. Holub et al., Phys. Rev. Lett. 98, 146603 (2007). [3] J. Frougier et al., Appl. Phys. Lett. 103, 252402 (2013). [4] J.-Y. Chen et al., Nature Nanotech. 9, 845 (2014). [5] J. Lee et al., Appl. Phys. Lett. 97, 041116 (2010). [6] N. C. Gerhardt, et al., Appl. Phys. Lett. 99, 151107 (2011). [7] H. Hopfner et al., Appl. Phys. Lett. 104, 022409 (2014). [8] G. Boeris et al., Appl. Phys. Lett. 100, 121111 (2012). [9] J. Lee et al., Appl. Phys. Lett. 105, 042411 (2014).

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Authors

  • Paulo Eduardo de Faria Junior

    Universidade de S\~ao Paulo, State University of New York at Buffalo, SUNY Buffalo / Universidade de Sao Paulo, Brazil

  • Gaofeng Xu

    SUNY Buffalo

  • Jeongsu Lee

    SUNY Buffalo / Universit\"at Regensburg, Germany

  • Nils C. Gerhardt

    Ruhr-University Bochum, Germany

  • Guilherme Sipahi

    Universidade de S\~ao Paulo, State University of New York at Buffalo, SUNY Buffalo / Universidade de Sao Paulo, Brazil

  • Igor Zutic

    University at Buffalo, Department of Physics, University at Buffalo, State University of New York, Buffalo, New York 14260, USA, University at Buffalo, The State University of New York, Department of Physics, University at Buffalo, SUNY, Buffalo, NY 14260, USA, SUNY Buffalo, State University of New York at Buffalo, University at Buffalo-SUNY, University at Buffalo - SUNY