6 research outputs found
Tunable Single-Photon Emission with Wafer-Scale Plasmonic Array
Bright, scalable, and deterministic single-photon emission
(SPE)
is essential for quantum optics, nanophotonics, and optical information
systems. Recently, SPE from hexagonal boron nitride (h-BN) has attracted
intense interest because it is optically active and stable at room
temperature. Here, we demonstrate a tunable quantum emitter array
in h-BN at room temperature by integrating a wafer-scale plasmonic
array. The transient voltage electrophoretic deposition (EPD) reaction
is developed to effectively enhance the filling of single-crystal
nanometals in the designed patterns without aggregation, which ensures
the fabricated array for tunable performances of these single-photon
emitters. An enhancement of ∼500% of the SPE intensity of the
h-BN emitter array is observed with a radiative quantum efficiency
of up to 20% and a saturated count rate of more than 4.5 × 106 counts/s. These results suggest the integrated h-BN-plasmonic
array as a promising platform for scalable and controllable SPE photonics
at room temperature
Correlations between SI-QT<sub>c</sub> (A), SD-QT<sub>c</sub> (B), QT<sub>c</sub> dispersion (C) and log<sub>e</sub> cardiac T2* value.
<p>QT<sub>c</sub> = corrected QT interval; SI-QT<sub>c</sub> = smooth index of corrected QT intervals; SD-QT<sub>c</sub> = standard deviation of corrected QT intervals.</p
Magnetocardiography-derived parameters in patients with patients with thalassemia major and control subjects.
<p>QT<sub>c</sub> = corrected QT interval; SI-QT<sub>c</sub> = smooth index of corrected QT intervals; SD-QT<sub>c</sub> = standard deviation of corrected QT intervals.</p
ROC curves of SI-QT<sub>c</sub> (A), SD-QT<sub>c</sub> (B), QT<sub>c</sub> dispersion (C), and cardiac T2* (D) for predicting the presence of adverse cardiac events.
<p>The optimal cut-off value (labeled as the black dot on the ROC curve), sensitivity, and specificity of each individual parameter are shown. Data in the parenthesis indicate 95% confidence interval of the area under curve (AUC). QT<sub>c</sub> = corrected QT interval; SI-QT<sub>c</sub> = smooth index of corrected QT intervals; SD-QT<sub>c</sub> = standard deviation of corrected QT intervals.</p
Patient characteristics.
*<p>n = 33;</p>†<p>n = 47.</p><p>AV = atrioventricular; CMR = cardiac magnetic resonance; LV = left ventricular.</p
Construction of a QT<sub>c</sub> contour map from magnetocardiography (MCG).
<p>Signals from 64-channel MCG traces before averaging, and the construction of repolarization map with a 21×21 resolution by signal-averaged vector-projected electrocardiogram (A). The spatial distribution of corrected QT (QT<sub>c</sub>) intervals was displayed on a QT<sub>c</sub> contour map (B).</p