Optically programmable excitonic traps.
Optically programmable excitonic traps.
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DOI:
10.1038/srep01578
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发表时间:
2013
影响因子:
4.6
通讯作者:
Dubin F
中科院分区:
文献类型:
--
作者:
Alloing M;Lemaître A;Galopin E;Dubin F
With atomic systems, optically programmed trapping potentials have led to remarkable progress in quantum optics and quantum information science. Programmable trapping potentials could have a similar impact on studies of semiconductor quasi-particles, particularly excitons. However, engineering such potentials inside a semiconductor heterostructure remains an outstanding challenge and optical techniques have not yet achieved a high degree of control. Here, we synthesize optically programmable trapping potentials for indirect excitons of bilayer heterostructures. Our approach relies on the injection and spatial patterning of charges trapped in a field-effect device. We thereby imprint in-situ and on-demand electrostatic traps into which we optically inject cold and dense ensembles of excitons. This technique creates new opportunities to improve state-of-the-art technologies for the study of collective quantum behavior of excitons and also for the functionalisation of emerging exciton-based opto-electronic circuits.
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影响因子:
64.8
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Nandi, D.;Finck, A. D. K.;West, K. W.
通讯作者:
West, K. W.
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BOSIO, C;STAEHLI, JL;LOGAN, RA
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Combescot, Monique;Moore, Michael G.;Piermarocchi, Carlo
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Piermarocchi, Carlo
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