AI Article Synopsis
- The experiment aims to investigate the local response of a superconducting single photon detector using a sharp metal tip in a specialized microscope.
- The method involves simulating the interaction between the tip and detector to measure optical absorption, treating the tip as an optical antenna.
- Results indicate that the detector's response, particularly a notable peak near the edge, can be spatially resolved with a precise resolution of about 20 nm.
Article Abstract
We propose an experiment to directly probe the local response of a superconducting single photon detector using a sharp metal tip in a scattering scanning near-field optical microscope. The optical absorption is obtained by simulating the tip-detector system, where the tip-detector is illuminated from the side, with the tip functioning as an optical antenna. The local detection efficiency is calculated by considering the recently introduced position-dependent threshold current in the detector. The calculated response for a 150 nm wide detector shows a peak close to the edge that can be spatially resolved with an estimated resolution of ∼ 20 nm, using a tip with parameters that are experimentally accessible.
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| http://dx.doi.org/10.1364/OE.23.024873 | DOI Listing |
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