Lithium niobate integrated quantum photonics
Lead Research Organisation:
University of Cambridge
Department Name: Materials Science & Metallurgy
Abstract
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Organisations
People |
ORCID iD |
Zoe Barber (Principal Investigator) | |
Mark Blamire (Co-Investigator) |
Publications
Pal A
(2014)
Pure second harmonic current-phase relation in spin-filter Josephson junctions.
in Nature communications
Heath R
(2014)
Nano-optical observation of cascade switching in a parallel superconducting nanowire single photon detector
in Applied Physics Letters
Chaves D
(2024)
Using quantitative magneto-optical imaging to reveal why the ac susceptibility of superconducting films is history independent
in Physical Review B
Bosworth D
(2015)
Amorphous molybdenum silicon superconducting thin films
in AIP Advances
Banerjee A
(2017)
Characterisation of amorphous molybdenum silicide (MoSi) superconducting thin films and nanowires
in Superconductor Science and Technology
Description | Our work has focused on the development and understanding of amorphous superconducting films and, in particular Mo-Si, for nanowire single-photon detectors. Fabrication has been optimised, and film characterisation has advanced. We have now transferred these capabilities to our colleagues in Glasgow, who will continue with detector development based upon these materials, including uniform large area focal plane arrays and integration with quantum photonic waveguide circuits. |
Exploitation Route | Our thin film development can be applied to general advancements in photon detector technology; e.g. uniform large area focal plane arrays, and integration with quantum photonic waveguide circuits. Ultimately, photon detection is a requirement for quantum communication and quantum computing, besides potential new applications in biological imaging, remote sensing and astronomy. More generally, we have advanced the science of amorphous thin film fabrication and understanding, and this could have much wider impact. |
Sectors | Digital/Communication/Information Technologies (including Software) Electronics |
Description | This work has been step on the road to the application of quantum technologies utilising photons. Optimized materials are essential components for the necessary devices, and we demonstrated clearly the potential for use of amorphous thin film nano-wires as photon sensors, and highlighted the remaining issues to be overcome. Impact will come from, for example, quantum secure communications, and novel methods for medical imaging. |
First Year Of Impact | 2016 |