PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
We propose a new biasing concept for superconducting nanowire single photon detectors (SNSPD).
It features the frequency-voltage relation of a Josephson junction to generate a bias supply with quantum precision.
The quantum bias concept is characterized by a very low resistor and a frequency controlled noise-free quantum voltage source. In the first experiments, we intentionally slow down the time constant by using a very small bias resistor. We obtain an intrinsic time constant of about 100μs. Corresponding to this time constant, the generated current pulses for the Josephson junction through the SNSPD cause in time-average a constant bias current.
The SNSPD as well as the Josephson junction are based on superconducting thin film technology and can be fabricated in general on the same substrate.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
The alert did not successfully save. Please try again later.
Thomas Ortlepp, Sonja Engert, Christian Moeller, Anna Reinhardt, "Quantum precise bias supply of superconducting single photon detectors," Proc. SPIE PC12911, Quantum Computing, Communication, and Simulation IV, PC1291105 (13 March 2024); https://doi.org/10.1117/12.3003646