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Meng Sun
복잡계 이론물리 연구단
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Multivalley engineering in semiconductor microcavities

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Title
Multivalley engineering in semiconductor microcavities
Author(s)
Meng Sun; Ivan G. Savenko; H. Flayac; T. C. H. Liew
Publication Date
2017-04
Journal
Scientific Reports, v.7, no., pp.45243 -
Publisher
NATURE PUBLISHING GROUP
Abstract
We consider exciton-photon coupling in semiconductor microcavities in which separate periodic potentials have been embedded for excitons and photons. We show theoretically that this system supports degenerate ground-states appearing at non-zero inplane momenta, corresponding to multiple valleys in reciprocal space, which are further separated in polarization corresponding to a polarizationvalley coupling in the system. Aside forming a basis for valleytronics, the multivalley dispersion is predicted to allow for spontaneous momentum symmetry breaking and two-mode squeezing under non-resonant and resonant excitation, respectively. © The Author(s) 2017
URI
http://pr.ibs.re.kr/handle/8788114/3427
DOI
10.1038/srep45243
ISSN
2045-2322
Appears in Collections:
Center for Theoretical Physics of Complex Systems(복잡계 이론물리 연구단) > Journal Papers (저널논문)
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