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Uncooled Nanopillar Single-Photon Avalanche Diodes (NP-SPADs) at Telecommunication Wavelengths

Project description

Commercialisation of efficient single-photon detectors for telecom applications imminent

Sending and receiving quantum information over long distances using single photons at telecommunication wavelengths will underpin innovations in remote sensing applications and quantum information processing. The EU-funded NP-SPAD project will develop a device scheme that leverages single-photon avalanche diodes (SPADs) composed of semiconductor materials that will be operating at 1.55 µm. The aim is to improve photon detection efficiency by 20 % and significantly reduce the dark count rate compared to the commercial Geiger-mode avalanche photodiodes. If successful, the project will significantly foster the development and commercialisation of high-performance semiconductor-based SPADs, putting the EU at the forefront of cutting-edge technology in single-photon detection.

Objective

High efficiency detection of single photons at telecommunication wavelengths (notably at 1.55 µm) is critical for emerging technologies, such as free-space and on-fiber quantum information processing, eye-safe and long-distance light detection and ranging (LiDAR), and highly sensitive remote sensing. This research project aims to meet this critical need by developing III-V nanopillar-based uncooled single-photon avalanche diodes (NP-SPADs), which are composed of nanostructured InAsP-InP Geiger-mode avalanche photodiodes (GmAPDs) with self-assembled plasmonic gratings, operating at 1.55 µm. Compared with commercially available InGaAs(P)-InP GmAPDs, the proposed device scheme significantly suppresses thermally generated carriers and trap state population by a factor of 20 to 100 due to the extremely small fill factor of nanopillar arrays (less than 5%). All the while, sufficient optical absorption is maintained via surface plasmon resonance by the plasmonic gratings. The sum combination of these unique capabilities offers the promise of achieving NP-SPADs with free-running mode operation, high photon detection efficiency (PDE; probability of detecting a single photon) of 10 – 20%, low dark count rate (DCR; rate of false detection) of ~50 Hz, and high photon count rate ≥5 MHz. If successful, this approach can drastically stimulate the development and commercialization of high performance semiconductor-based NP-SPADs, putting European Union (EU) at the forefront of cutting-edge technology in single photon detection.

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Topic(s)

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Funding Scheme

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MSCA-IF-EF-ST - Standard EF

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Call for proposal

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(opens in new window) H2020-MSCA-IF-2018

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Coordinator

CARDIFF UNIVERSITY
Net EU contribution

Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.

€ 224 933,76
Address
RESEARCH SERVICES C/O MAIN BUILDING
CF10 3AT CARDIFF
United Kingdom

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Region
Wales East Wales Cardiff and Vale of Glamorgan
Activity type
Higher or Secondary Education Establishments
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Total cost

The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.

€ 224 933,76
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