Stellar Intensity Interferometry Workshop 2025

Session

Detectors for SII

16 Oct 2025, 09:00

Research Campus Waischenfeld (Germany) of the Fraunhofer Society

Conveners

Detectors for SII

• Robin Kaiser (CNRS / Université de la Côte d’Azur)

32. Superconducting nanowire detector review and prospects for SII

Boris Korzh (University of Geneva)

16/10/2025, 09:00

Invited talk

Superconducting nanowire single-photon detectors (SNSPD) systems have progressed rapidly over the past decade. Recent devices exhibit leading performance figures including sub-10 ps system timing jitter, 1.5 GHz detection rates, arrays up to 400,000 pixels, sub-hertz dark count rates, high efficiency, as well as intrinsic and array-based photon number resolution. In this talk I will review...

37. Quantum-assisted Interferometers for astrometry

Andrei Nomerotski (Czech Technical University in Prague)

16/10/2025, 09:35

Invited talk

Correlations of photon pairs from entangled quantum sources offer advantages and provide additional opportunities in new sensing approaches in multiple fields. In general, strong spectro-temporal correlations inherent for entangled photons could make those sensing techniques much more precise and resource efficient. In application to astrophysics I will compare the standard techniques of...

30. Broadband HBT in spectrometer

Sergei Kulkov

16/10/2025, 10:10

Contributed talk

We present our simultaneous broadband multi-wavelength HBT measurement in a spectrometer with a 25 nm range, 0.1 nm/pixel scale based on the 512-pixel SPAD sensor of the LinoSPAD2 detector. Using an LED as a broadband source of light simulating starlight, we measure the HBT effect in tens of spectral bins. Detector resolution of 40 ps rms allows us to achieve 3% contrast in under 10 hours of...