Projects per year
Abstract
In this work we report on a single photon detector system which offers near-unity detection efficiency using waveguide-coupled superconducting nanowires with lengths on the order of 1 μm. This is achieved by embedding the nanowires in a racetrack resonator where the interaction time with the photons trapped in the cavity is increased, thereby allowing for shorter nanowires. We expect this to lead to a higher fabrication yield as the amount of inhomogeneities decreases for shorter nanowires. Our simulations show a system with a 1 μm long superconducting nanowire single photon detector (SNSPD) operating at near-unity detection efficiency using design parameters that can be realistically achieved with conventional fabrication processes. The resonant cavity introduces spectral selectivity to the otherwise broad-band SNSPDs and the cavity induced timing jitter is shown to be insignificant for SNSPDs longer than 1 μm.
Original language | English |
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Pages (from-to) | 8797-8808 |
Number of pages | 12 |
Journal | Optics Express |
Volume | 24 |
Issue number | 8 |
DOIs | |
Publication status | Published - 19 Apr 2016 |
Event | Photon 16 - University of Leeds, Leeds, United Kingdom Duration: 5 Sept 2016 → 8 Sept 2016 |
Research Groups and Themes
- QETLabs
- Photonics and Quantum
Keywords
- Detectors
- Optical resonators
- Integrated optics
- Wavelength filtering devices
- Photonic integrated circuits
- Photodetectors
Fingerprint
Dive into the research topics of 'Modelling superconducting nanowire single photon detectors in a waveguide cavity'. Together they form a unique fingerprint.Projects
- 7 Finished
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Training and Skills Hubs in Quantum Systems Engineering: The Quantum Enterprise Hub.
Collins, A. M. (Principal Investigator)
1/04/16 → 30/06/22
Project: Research
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QPE: ERC start grant: EQT
Thompson, M. G. (Principal Investigator)
1/05/15 → 16/04/19
Project: Research
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Quantum Optics for Integrated Photonic Technologies
Rarity, J. G. (Principal Investigator)
16/06/14 → 15/06/19
Project: Research
Profiles
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Dr Jorge Barreto
- School of Physics - Associate Professor (in Quantum Technologies)
- School of Electrical, Electronic and Mechanical Engineering - Associate Professor
- Quantum Engineering Centre for Doctoral Training (EPSRC)
- QET Labs
Person: Academic , Member