Measuring intensity correlations with a two-element superconducting nanowire single-photon detector
Eric A. Dauler, Martin J. Stevens, Burm Baek, Richard J. Molnar, Scott A. Hamilton, Richard P. Mirin, Sae Woo Nam, Karl K. Berggren
DOI 10.1103/PhysRevA.78.053826 · Physical Review A
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Abstract
Second-order intensity correlation measurements were made using a two-element superconducting nanowire single photon detector (SNSPD) without the need for an optical beam splitter. This approach can be used to obtain a 50‐ps full width at half maximum timing resolution over a wide range of visible and near-infrared wavelengths and can be extended to measure higher-order intensity correlations. Measurements of the second-order intensity correlation of a pulsed laser and an InGaAs quantum dot were made using both a two-element SNSPD and a conventional Hanbury Brown–Twiss interferometer to demonstrate the accuracy and advantages of the multielement SNSPD.
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| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| NbN Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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