Danna Rosenberg, Sae Woo Nam, Aaron J. Miller, Arto Salminen, Erich N. Grossman, Robert E. Schwall, John M. Martinis
The number resolving ability and extremely low dark count rate of tungsten transition-edge sensors (TESs) make them excellent candidates to replace avalanche photo diodes (APDs) in quantum information experiments, including quantum key distribution and quantum computing. Increasing the absorption of these devices from the current value of 20 % to 90 % or better would make these detectors even more desirable for these applications. By incorporating the tungsten in a stack of elements including a mirror and an anti-reflective coating, we have demonstrated room temperature absorption of greater than 95 % in films of tungsten.
Nuclear Instruments & Methods in Physics Research Section A-Accelerators Spectrometers Detectors and Associated Equipment
, Nam, S.
, Miller, A.
, Salminen, A.
, Grossman, E.
, Schwall, R.
and Martinis, J.
Near Unity Absorption in Tungsten films, Nuclear Instruments & Methods in Physics Research Section A-Accelerators Spectrometers Detectors and Associated Equipment, [online], https://doi.org/10.1016/j.nima.2003.11.308
(Accessed December 6, 2023)