Semiconductor heterostructures for spintronics and quantum information |
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| Affiliation: | 1. Institute of Experimental Physics, Warsaw University, Hoża 69, 00681 Warsaw, Poland;2. CNRS–CEA–UJF Joint Group « Nanophysique et semiconducteurs », laboratoire de spectrométrie physique, BP 87, 38402 Saint Martin d''Hères cedex, France;3. Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02668 Warszawa, Poland;4. Laboratoire de photonique et nanostructures, CNRS, route de Nozay, 91460 Marcoussis, France |
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| Abstract: | A selection of optical experiments is presented, demonstrating the utility of semiconductors in two novel areas of research: spintronics and quantum information. First we show examples of spin manipulation in semiconductor quantum wells. The light is used to generate a spin polarization and to detect it. Next we discuss application of optical methods in studies of carrier-induced ferromagnetism in quantum wells. Finally, we present examples of single quantum dot spectroscopy related to perspectives of application of quantum dots in quantum information, and, in particular, the use of photon correlation measurements as a tool to study the quantum dot excitation mechanisms. To cite this article: J.A. Gaj et al., C. R. Physique 8 (2007). |
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