Delayed formation of coherence in the emission dynamics of high-Q nanolasers
| Autor: | Moody, Galan, Segnon, Mawussey, Sagnes, Isabelle, Braive, Rémy, Beveratos, Alexios, PHILIP, Isabelle, Belabas, Nadia, Jahnke, Frank, Silverman, Kevin l., Mirin, Richard p., Stevens, Martin J., Gies, Christopher |
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| Přispěvatelé: | National Institute of Standards and Technology [Gaithersburg] (NIST), University of Bremen, Centre de Nanosciences et de Nanotechnologies [Marcoussis] (C2N), Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11), Laboratoire Charles Coulomb (L2C), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: | |
| Zdroj: | Optica Optica, Optical Society of America-OSA Publishing, 2018, 5 (4), pp.395. ⟨10.1364/OPTICA.5.000395⟩ |
| ISSN: | 2334-2536 |
| DOI: | 10.1364/OPTICA.5.000395⟩ |
| Popis: | In the realization of ultrasmall semiconductor lasers, cavity-QED effects are used to enhance spontaneous emission and enable the lasing threshold to be crossed with gain contributions from only a few solid-state emitters. Operation in this regime fosters correlation effects that leave their fingerprint especially in the emission dynamics of nanolasers. Using time-resolved photon-correlation spectroscopy, we show that in a quantum-dot photonic-crystal nanolaser emitting in the telecom band, second-order coherence associated with lasing is established on a different timescale than the emission itself. By combining measurements with a microscopic semiconductor laser theory, we attribute the origin to carrier-photon correlations that give rise to non-Markovian effects in the emission dynamics that are not captured by laser rate-equation theories. Our results have direct implications with respect to the modulation response, repetition rate, noise characteristics, and coherence properties of nanolasers for device applications. |
| Databáze: | OpenAIRE |
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