Room-temperature single-photon emitters in silicon nitride.
Room-temperature single-photon emitters in silicon nitride.
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DOI:
10.1126/sciadv.abj0627
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发表时间:
2021-12-10
期刊:
影响因子:
13.6
通讯作者:
Shalaev VM
中科院分区:
文献类型:
--
作者:
Senichev A;Martin ZO;Peana S;Sychev D;Xu X;Lagutchev AS;Boltasseva A;Shalaev VM
Bright, stable, linearly polarized, and high-purity single-photon emitters at room temperature are observed in SiN. Single-photon emitters are essential in enabling several emerging applications in quantum information technology, quantum sensing, and quantum communication. Scalable photonic platforms capable of hosting intrinsic or embedded sources of single-photon emission are of particular interest for the realization of integrated quantum photonic circuits. Here, we report on the observation of room-temperature single-photon emitters in silicon nitride (SiN) films grown on silicon dioxide substrates. Photophysical analysis reveals bright (>105 counts/s), stable, linearly polarized, and pure quantum emitters in SiN films with a second-order autocorrelation function value at zero time delay g(2)(0) below 0.2 at room temperature. We suggest that the emission originates from a specific defect center in SiN because of the narrow wavelength distribution of the observed luminescence peak. Single-photon emitters in SiN have the potential to enable direct, scalable, and low-loss integration of quantum light sources with a well-established photonic on-chip platform.
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