Superconducting transition edge sensors (TES) for single photon detection have been shown to have almost perfect quantum efficiency (98%) at a wide range of wavelengths. Their high quantum efficiency combined with their ability to intrisically measure the energy of the absorption event results in a detector that is able to distinguish photon number with high fidelity and without any multiplexing structure. These are highly desired properties in quantum optics experiments, however, the wider adoption of TESs has been hindered by relatively poor timing performance, both in recovery time and in timing resolution (jitter).We will show how both these aspects can be addressed by material and thermal engineering and appropriate readout configurations, while maintaing the high efficiency and the photon number resolution.
Proceedings Title: Abstracts Conference on Quantum Communication, Measurement and Computing
Conference Dates: July 30-August 3, 2012
Conference Location: Vienna, -1
Conference Title: Conference on Quantum Communication, Measurement and Computing
Pub Type: Conferences
transition edge sensor, low timing jitter, quantum information