Efficient single photon source based on \(\mu\)-fibre-coupled tunable microcavity
Zitieren Sie bitte immer diese URN: urn:nbn:de:bvb:20-opus-145835
- Efficient and fast on-demand single photon sources have been sought after as critical components of quantum information science. We report an efficient and tunable single photon source based on an InAs quantum dot (QD) embedded in a photonic crystal cavity coupled with a highly curved \(\mu\)-fibre. Exploiting evanescent coupling between the \(\mu\)-fibre and the cavity, a high collection efficiency of 23% and Purcell-enhanced spontaneous emissions are observed. In our scheme, the spectral position of a resonance can be tuned by as much as 1.5Efficient and fast on-demand single photon sources have been sought after as critical components of quantum information science. We report an efficient and tunable single photon source based on an InAs quantum dot (QD) embedded in a photonic crystal cavity coupled with a highly curved \(\mu\)-fibre. Exploiting evanescent coupling between the \(\mu\)-fibre and the cavity, a high collection efficiency of 23% and Purcell-enhanced spontaneous emissions are observed. In our scheme, the spectral position of a resonance can be tuned by as much as 1.5 nm by adjusting the contact position of the \(\mu\)-fibre, which increases the spectral coupling probability between the QD and the cavity mode. Taking advantage of the high photon count rate and the tunability, the collection efficiencies and the decay rates are systematically investigated as a function of the QD-cavity detuning.…
Autor(en): | Chang-Min Lee, Hee-Jin Lim, Christian Schneider, Sebastian Maier, Sven Höfling, Martin Kamp, Yong-Hee Lee |
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URN: | urn:nbn:de:bvb:20-opus-145835 |
Dokumentart: | Artikel / Aufsatz in einer Zeitschrift |
Institute der Universität: | Fakultät für Physik und Astronomie / Physikalisches Institut |
Sprache der Veröffentlichung: | Englisch |
Titel des übergeordneten Werkes / der Zeitschrift (Englisch): | Scientific Reports |
Erscheinungsjahr: | 2015 |
Band / Jahrgang: | 5 |
Heft / Ausgabe: | 14309 |
Originalveröffentlichung / Quelle: | Scientific Reports 5, 14309; doi: 10.1038/srep14309 (2015). |
DOI: | https://doi.org/10.1038/srep14309 |
Allgemeine fachliche Zuordnung (DDC-Klassifikation): | 6 Technik, Medizin, angewandte Wissenschaften / 62 Ingenieurwissenschaften / 621 Angewandte Physik |
Freie Schlagwort(e): | crystal; emission; generation; mode; nanoactivity; nanowire; semiconductor quantum dots; tapers |
Datum der Freischaltung: | 09.10.2017 |
Lizenz (Deutsch): | CC BY: Creative-Commons-Lizenz: Namensnennung 4.0 International |