Abstract
Superconducting nanowire single photon detectors are rapidly emerging as a key infrared photon-counting technology. Two front-side-coupled silver dipole nanoantennas, simulated to have resonances at 1480 and 1525 nm, were fabricated in a two-step process. An enhancement of 50 to 130% in the system detection efficiency was observed when illuminating the antennas. This offers a pathway to increasing absorption into superconducting nanowires, creating larger active areas, and achieving more efficient detection at longer wavelengths.
Original language | English |
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Pages (from-to) | 819-822 |
Number of pages | 4 |
Journal | Nano Letters |
Volume | 15 |
Issue number | 2 |
Early online date | 9 Jan 2015 |
DOIs | |
Publication status | Published - 11 Feb 2015 |
Keywords
- infrared detector
- SNSPD
- nanoantenna
- superconducting nanowire
- single photon detector
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Tim Drysdale
- School of Engineering - Chair in Technology Enhanced Science Education
Person: Academic: Research Active