Nanoantenna enhancement for telecom-wavelength superconducting single photon detectors.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 25575021.
- Also identified by DOI 10.1021/nl503055a.
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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.