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Optical spin manipulation of electrically pumped vertical-cavity surface-emitting lasers

Hovel, S. and Bischoff, A. and Gerhardt, N.C. and Hofmann, M.R. and Ackemann, T. and Kroner, A. and Michalzik, R. (2008) Optical spin manipulation of electrically pumped vertical-cavity surface-emitting lasers. Applied Physics Letters, 92 (4). ISSN 0003-6951

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Abstract

We analyze the potential for the spin manipulation of vertical-cavity surface-emitting lasers (VCSELs) by operating them electrically and injecting additional spin-polarized carriers by polarized optical excitation. The output polarization of the VCSELs can be easily controlled by the spin orientation of the optically injected carriers when the injection current does not exceed the threshold current.