期刊
APPLIED SCIENCES-BASEL
卷 11, 期 2, 页码 -出版社
MDPI
DOI: 10.3390/app11020695
关键词
quantum photonic circuit; single photon source; waveguide coupled; self-assembled quantum dot
类别
资金
- Central University Basic Research Fund [19CX02056A]
- Major National Science and Technology Projects [2017ZX05032-003-002]
This study proposes an on-chip single photon source that is easily implemented by directly making the waveguide from the quantum dot membrane. The photon statistics of the on-chip photon source were investigated by second-order correlation function measurements, confirming the emission of single photons from the same quantum dot and propagating via the waveguide to the out couplers. These results demonstrate the achievement of an on-chip single photon source that is easily implemented and easily integrated into quantum photonic circuits.
Featured Application This work has an application in realizing on-chip quantum photonic circuits with integrated quantum emitters for quantum computation or quantum communication. In recent years, many groups and institutions have been committed to the research of integrated quantum photonic circuit technologies, of which the key components are waveguide coupled single photon sources. In this study, we propose an on-chip waveguide-coupled single photon source that is easily implemented as the waveguide is directly made from the quantum dot membrane. In order to scatter light out of the on-chip waveguide plane into the detection apparatus, grating output couplers are made at both ends of the waveguide. The photon statistics of the on-chip photon source were investigated by second-order correlation function g((2))(tau) measurements using a Hanbury Brown and Twiss interferometer. From the spectra and cross-correlation experiments by collecting emission at the point of quantum dot and out coupler, the emitting of single photons from the same quantum dot and propagating via the waveguide to the out couplers was confirmed. These results show that we have achieved an on-chip single photon source that is easily implemented and easily integrated into quantum photonic circuits.
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