Journal article
High-Purity Triggered Single-Photon Emission from Symmetric Single InAs/InP Quantum Dots around the Telecom C-Band Window
Publication Details
Authors: | Musiał, A.; Holewa, P.; Wyborski, P.; Syperek, M.; Kors, A.; Reithmaier, J.; Skek, G.; Benyoucef, M. |
Publication year: | 2019 |
Journal: | Advanced Quantum Technologies |
Pages range : | 1900082 |
Volume number: | 3 |
Issue number: | 2 |
ISSN: | 2511-9044 |
eISSN: | 2511-9044 |
DOI-Link der Erstveröffentlichung: |
Abstract
The authors demonstrate pure triggered single-photon emission from quantum dots (QDs) around the telecommunication C-band window, with characteristics preserved under non-resonant excitation at saturation, that is, the highest possible, lifetime-limited emission rates. The direct measurement of emission dynamics reveals photoluminescence decay times in the range of (1.7-1.8) ns corresponding to maximal photon generation rates exceeding 0.5 GHz. The measurements of the second-order correlation function exhibit, for the best case, a lack of coincidences at zero time delay-no multiple photon events are registered within the experimental accuracy. This is achieved by exploiting a new class of low-density and in-plane symmetric InAs/InP QDs grown by molecular beam epitaxy on a distributed Bragg reflector, perfectly suitable for non-classical light generation for quantum optics experiments and quantum-secured fiber-based optical communication schemes.
The authors demonstrate pure triggered single-photon emission from quantum dots (QDs) around the telecommunication C-band window, with characteristics preserved under non-resonant excitation at saturation, that is, the highest possible, lifetime-limited emission rates. The direct measurement of emission dynamics reveals photoluminescence decay times in the range of (1.7-1.8) ns corresponding to maximal photon generation rates exceeding 0.5 GHz. The measurements of the second-order correlation function exhibit, for the best case, a lack of coincidences at zero time delay-no multiple photon events are registered within the experimental accuracy. This is achieved by exploiting a new class of low-density and in-plane symmetric InAs/InP QDs grown by molecular beam epitaxy on a distributed Bragg reflector, perfectly suitable for non-classical light generation for quantum optics experiments and quantum-secured fiber-based optical communication schemes.
Keywords
molecular beam epitaxy, quantum dots, single-photon emission, spectroscopy, telecom-wavelength
