Superconducting nanowire single photon detectors\nare rapidly emerging as a key infrared photon-counting\ntechnology. Two front-side-coupled silver dipole nanoantennas,\nsimulated to have resonances at 1480 and 1525 nm, were\nfabricated in a two-step process. An enhancement of 50 to\n130% in the system detection efficiency was observed when\nilluminating the antennas. This offers a pathway to increasing\nabsorption into superconducting nanowires, creating larger\nactive areas, and achieving more efficient detection at longer\nwavelengths.
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