Unconventional collective normal-mode coupling in quantum-dot-based bimodal microlasers

Khanbekyan, M.; Leymann, H. A. M.; Hopfmann, C.; Foerster, A.; Schneider, C.; Höfling, S.; Kamp, M.; Wiersig, J.; Reitzenstein, S.

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Date

28/04/2015

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Abstract

We analyze the occurrence of normal-mode coupling (NMC) in bimodal lasers attributed to the collective interaction of the cavity field with a mesoscopic number of quantum dots (QDs). In contrast to the conventional NMC, here we observe locking of the frequencies and splitting of the linewidths of the system's eigenmodes in the coherent coupling regime. The theoretical analysis of the incoherent regime is supported by experimental observations where the emission spectrum of one of the orthogonally polarized modes of a bimodal QD micropillar laser demonstrates a distinct two-peak structure.

Citation

Khanbekyan , M , Leymann , H A M , Hopfmann , C , Foerster , A , Schneider , C , Höfling , S , Kamp , M , Wiersig , J & Reitzenstein , S 2015 , ' Unconventional collective normal-mode coupling in quantum-dot-based bimodal microlasers ' , Physical Review. A, Atomic, molecular, and optical physics , vol. 91 , no. 4 , 043840 , pp. 1-5 . https://doi.org/10.1103/PhysRevA.91.043840

Publication

Physical Review. A, Atomic, molecular, and optical physics

Status

Peer reviewed

DOI

https://doi.org/10.1103/PhysRevA.91.043840

ISSN

1050-2947

Type

Journal article

Rights

©2015 American Physical Society. This work is made available online in accordance with the publisher’s policies. This is the final published version of the work, which was originally published at https://dx.doi.org/10.1103/PhysRevA.91.043840 .

Collections

University of St Andrews Research

URI

http://hdl.handle.net/10023/8161