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Fine structure of e...
Fine structure of exciton complexes in high-symmetry quantum dots: Effects of symmetry breaking and symmetry elevation
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- Karlsson, Fredrik (författare)
- Linköpings universitet,Halvledarmaterial,Tekniska högskolan
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- Dupertuis, M A (författare)
- Ecole Polytech Fed Lausanne
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- Oberli, D Y (författare)
- Ecole Polytech Fed Lausanne
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- Pelucchi, E (författare)
- Ecole Polytech Fed Lausanne
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- Rudra, A (författare)
- Ecole Polytech Fed Lausanne
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- Holtz, Per-Olof (författare)
- Linköpings universitet,Halvledarmaterial,Tekniska högskolan
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- Kapon, E (författare)
- Ecole Polytech Fed Lausanne
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(creator_code:org_t)
- American Physical Society, 2010
- 2010
- Engelska.
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Ingår i: PHYSICAL REVIEW B. - : American Physical Society. - 1098-0121. ; 81:16, s. 161307-
- Relaterad länk:
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https://liu.diva-por... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Quantum dots (QDs) of high symmetry (e.g., C-3 nu) have degenerate bright exciton states, unlike QDs of C-2 nu symmetry, making them intrinsically suitable for the generation of entangled photon pairs. Deviations from C-3 nu symmetry are detected in real QDs by polarization-resolved photoluminescence spectroscopy in side-view geometry of InGaAs/AlGaAs dots formed in tetrahedral pyramids. The theoretical analysis reveals both an additional symmetry plane and weak symmetry breaking, as well as the interplay with electron-hole and hole-hole exchange interactions manifested by the excitonic fine structure.
Nyckelord
- TECHNOLOGY
- TEKNIKVETENSKAP
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