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April 25, 2026Applied Physics Letters

Enhanced athermal phonon responsivity in a kinetic inductance detector with integrated phonon collectors

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Authors

LPL. PesceASA. L. De SantisMCM. Calvo

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Overview

Randomized trial shows improved phonon collection efficiency in kinetic inductance detectors, indicating enhanced detection capabilities for dark matter searches.

Key Points

  • This research aims to improve the responsivity of kinetic inductance detectors by integrating dedicated phonon collectors.
  • Developed a KID design that utilizes phonon collectors separately from the sensor.
  • Constructed a meander of 77 nm trilayer aluminum-titanium-aluminum wire for the KID and a 100 nm aluminum layer for the collectors.
  • Compared the performance with standard KID designs regarding phonon collection efficiency.
  • Achieved an increased phonon collection efficiency by a factor of around 7 compared to standard designs.

Cite This Study

Pesce et al. (2026) studied this question.

synapsesocial.com/papers/69ec5bd288ba6daa22dad1d7https://doi.org/10.1063/5.0323811
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