We discuss the concept of spin-controlled vertical-cavity surface-emitting lasers (VCSELs) and analyze it with respect to potential\r\nroom-temperature applications in spin-optoelectronic devices. Spin-optoelectronics is based on the optical selection rules as they\r\nprovide a direct connection between the spin polarization of the recombining carriers and the circular polarization of the emitted\r\nphotons. By means of optical excitation and numerical simulations we show that spin-controlled VCSELs promise to have superior\r\nproperties to conventional devices such as threshold reduction, spin control of the emission, or evenmuch faster dynamics. Possible\r\nconcepts for room-temperature electrical spin injection without large external magnetic fields are summarized, and the progress\r\non the field of purely electrically pumped spin-VCSELs is reviewed.
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