Next Generation Superconducting Nanowire Single-Photon Detectors

Superconducting Nanowire Single-Photon Detectors (SNSPDs) have demonstrated

exceptional versatility and optimized performance in a diverse range of advanced photon-counting applications due to their high sensitivity from visible to mid infrared wavelengths, picosecond timing jitter, and low dark count rate (DCR). However, SNSPDs' critical cryogenic cooling dependence, bulk size, high-power consumption, intricate fabrication

processes impede widespread adoption in advanced photon counting applications such aswith LiDAR, space communication, and singlet oxygen luminescence detection for laser medicine. This PhD project aims to explore and engineer new methods for advanced integration of SNSPDs under the supervision of Professor Robert Hadfield, building on the

know-how and capability of the Quantum Sensors research group. This project will benefit by harnessing advanced technologies from respective industrial partners towards system integration into advanced photon counting applications. This project aims to study the applicability of utilising promising materials for Mid-Infrared applications such as Tungsten

Silicide (WSi) and Molybdenum Silicide (MoSi), seek improved efficiencies with current SNSPD established materials such as Niobium Nitride (NbN) or Niobium Titanium Nitride (NbTiN), investigate novel methods of deposition (e.g., Atomic Layer Deposition) at the James Watt Nanofabrication Centre (JWNC), explore effective cryogenic solutions for

compact industrial systems, and collaborate with respective research groups and industrial partners from across the UK's vibrant quantum technologies and photonics sectors.