Research paperExperimental CharacterizationTheoreticalTwo-photon interference from a quantum emitter in hexagonal boron nitrideClarisse Fournier, Sébastien Roux, Kenji Watanabe, Takashi Taniguchi et al.arXiv·2023·10.1103/PhysRevApplied.19.L041003·arXiv:2210.05590AbstractWe investigate two-photon interference of a quantum emitter generated in hexagonal boron nitride (hBN) using an electron beam. We measure the correlations of zero-phonon-line photons in a Hong-Ou-Mandel (HOM) interferometer under non-resonant excitation. We find that the emitted photons exhibit a partial indistinguishability of 0.44 ± 0.11 in a 3 ns time window, which corresponds to a corrected value of 0.56 ± 0.11 after accounting for imperfect emitter purity. The dependence of the HOM visibility on the width of the post-selection time window allows us to estimate the dephasing time of the emitter to be ∼1.5 ns, about half the limit set by spontaneous emission.Read more
A single hBN crystal exfoliated onto a SiO₂(285 nm)/Si substrate and irradiated by a focused electron beam to create B-center quantum emitters.2 characterizations5 properties3 figuresExperimentalhBNStudied MaterialSiO₂Substrate / DielectricSiSubstrate / DielectricExpand
Research paperExperimental CharacterizationTheoreticalTwo-photon interference from a quantum emitter in hexagonal boron nitrideClarisse Fournier, Sébastien Roux, Kenji Watanabe, Takashi Taniguchi et al.arXiv·2023·10.1103/PhysRevApplied.19.L041003·arXiv:2210.05590AbstractWe investigate two-photon interference of a quantum emitter generated in hexagonal boron nitride (hBN) using an electron beam. We measure the correlations of zero-phonon-line photons in a Hong-Ou-Mandel (HOM) interferometer under non-resonant excitation. We find that the emitted photons exhibit a partial indistinguishability of 0.44 ± 0.11 in a 3 ns time window, which corresponds to a corrected value of 0.56 ± 0.11 after accounting for imperfect emitter purity. The dependence of the HOM visibility on the width of the post-selection time window allows us to estimate the dephasing time of the emitter to be ∼1.5 ns, about half the limit set by spontaneous emission.Read more
A single hBN crystal exfoliated onto a SiO₂(285 nm)/Si substrate and irradiated by a focused electron beam to create B-center quantum emitters.2 characterizations5 properties3 figuresExperimentalhBNStudied MaterialSiO₂Substrate / DielectricSiSubstrate / DielectricExpand
Research paperExperimental CharacterizationTheoreticalTwo-photon interference from a quantum emitter in hexagonal boron nitrideClarisse Fournier, Sébastien Roux, Kenji Watanabe, Takashi Taniguchi et al.arXiv·2023·10.1103/PhysRevApplied.19.L041003·arXiv:2210.05590AbstractWe investigate two-photon interference of a quantum emitter generated in hexagonal boron nitride (hBN) using an electron beam. We measure the correlations of zero-phonon-line photons in a Hong-Ou-Mandel (HOM) interferometer under non-resonant excitation. We find that the emitted photons exhibit a partial indistinguishability of 0.44 ± 0.11 in a 3 ns time window, which corresponds to a corrected value of 0.56 ± 0.11 after accounting for imperfect emitter purity. The dependence of the HOM visibility on the width of the post-selection time window allows us to estimate the dephasing time of the emitter to be ∼1.5 ns, about half the limit set by spontaneous emission.Read more
A single hBN crystal exfoliated onto a SiO₂(285 nm)/Si substrate and irradiated by a focused electron beam to create B-center quantum emitters.2 characterizations5 properties3 figuresExperimentalhBNStudied MaterialSiO₂Substrate / DielectricSiSubstrate / DielectricExpand
Research paperExperimental CharacterizationTheoreticalTwo-photon interference from a quantum emitter in hexagonal boron nitrideClarisse Fournier, Sébastien Roux, Kenji Watanabe, Takashi Taniguchi et al.arXiv·2023·10.1103/PhysRevApplied.19.L041003·arXiv:2210.05590AbstractWe investigate two-photon interference of a quantum emitter generated in hexagonal boron nitride (hBN) using an electron beam. We measure the correlations of zero-phonon-line photons in a Hong-Ou-Mandel (HOM) interferometer under non-resonant excitation. We find that the emitted photons exhibit a partial indistinguishability of 0.44 ± 0.11 in a 3 ns time window, which corresponds to a corrected value of 0.56 ± 0.11 after accounting for imperfect emitter purity. The dependence of the HOM visibility on the width of the post-selection time window allows us to estimate the dephasing time of the emitter to be ∼1.5 ns, about half the limit set by spontaneous emission.Read more
A single hBN crystal exfoliated onto a SiO₂(285 nm)/Si substrate and irradiated by a focused electron beam to create B-center quantum emitters.2 characterizations5 properties3 figuresExperimentalhBNStudied MaterialSiO₂Substrate / DielectricSiSubstrate / DielectricExpand