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Content Provider | IEEE Xplore Digital Library |
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Author | Lagoudakis, P.G. Martin, M.D. Baumberg, J.J. Malpuech, G. Kavokin, A. Pfeiffer, L.N. |
Copyright Year | 2003 |
Description | Author affiliation: Dept. of Phys. & Astron., Southampton Univ., UK (Lagoudakis, P.G.; Martin, M.D.; Baumberg, J.J.) |
Abstract | Summary form only given. The coexistence of low threshold lasing in the strong coupling (SC) regime in a high-quality semiconductor microcavity under quasi-resonant optical pumping is reported. In this study, a clear evidence of the simultaneous presence of the perturbative and non-perturbative regimes under the same optical excitation in semiconductor microcavities is observed. An unambiguous anti-crossing behavior of the coupled bare cavity and exciton modes, characteristic of the strong-coupling regime is obtained. Between these eigenstates of the system a new strong line appears whose intensity is exponentially dependent on the pumping power. An intermediate regime in semiconductor microcavities is identified, where this unexpected lasing mode, which fulfills the characteristics of the weak coupling mode, coexists with the free polariton modes. It is shown that this extra mode results from the population inversion of highly localized exciton states that behave as quantum-dot-like trap in the plane of the quantum well. Thus, simultaneous operation of a VCSEL and strongly coupled exciton-polaritons in a cavity is achieved. |
Sponsorship | APS/Division of Laser Sci. IEEE Lasers and Electro-Optics Soc. Optical Soc. of America |
File Size | 129547 |
File Format | |
ISBN | 1557527490 |
DOI | 10.1109/QELS.2003.238211 |
Language | English |
Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Publisher Date | 2003-06-06 |
Publisher Place | USA |
Access Restriction | Subscribed |
Rights Holder | OSA |
Subject Keyword | Quantum dot lasers Excitons Quantum dots Optical resonators US Department of Transportation Microcavities Optical pumping Resonance Optical coupling Vertical cavity surface emitting lasers |
Content Type | Text |
Resource Type | Article |
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