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32 Bin Near-Infrared Time-Multiplexing Detector with Attojoule Single-Shot Energy Resolution
Patrick Eraerds, Jun Zhang, Enrico Pomarico +3
We present two implementations of photon counting time-multiplexing detectors for near-infrared wavelengths, based on Peltier cooled InGaAs/InP avalanche photo diodes (APDs). A fir…
Coherent frequency-down-conversion interface for quantum repeaters
Noé Curtz, Rob Thew, Christoph Simon +2
We report a coherence-preserving photon frequency down-conversion experiment based on difference-frequency generation in a periodically poled Lithium niobate waveguide, at the sing…
Quantum Cloning for Absolute Radiometry
Bruno Sanguinetti, Enrico Pomarico, Pavel Sekatski +2
In the quantum regime information can be copied with only a finite fidelity. This fidelity gradually increases to 1 as the system becomes classical. In this article we show how thi…
Room temperature photon number resolving detector at telecom wavelengths
Enrico Pomarico, Bruno Sanguinetti, Rob Thew +1
Large dynamic range room temperature photon number resolving (PNR) detectors can be very useful for measuring very low light intensities and for analyzing multiphoton quantum state…
2.23 GHz gating InGaAs/InP single-photon avalanche diode for quantum key distribution
Jun Zhang, Patrick Eraerds, Nino Walenta +3
We implement an InGaAs/InP single-photon avalanche diode (SPAD) for single-photon detection with the fastest gating frequency reported so far, of 2.23 GHz, which approaches the lim…
Patterning of ultrathin YBCO nanowires using a new focused-ion-beam process
Noé Curtz, Edmond Koller, Hugo Zbinden +4
Manufacturing superconducting circuits out of ultrathin films is a challenging task when it comes to patterning complex compounds, which are likely to be deteriorated by the patter…