Improving Performance of a Multiplexed Dark Matter Detector via Infrared Isolation

Title

Improving Performance of a Multiplexed Dark Matter Detector via Infrared Isolation

Published Date

2021-05

Publisher

Type

Thesis or Dissertation

Abstract

Microwave Kinetic Inductance Detectors (MKIDs) are superconducting microresonators that are most commonly used for microwave detection in astronomy. They have potential for use as phonon detectors in cryogenic dark matter searches, but their implementation faces a number of technical challenges. Among these issues is the potential for higher-temperature infrared photons to reach the superconducting substrate and consequently degrade the quality factor of the MKID’s resonance. This thesis details the design and construction of epoxy-based filters meant to mitigate this effect, and finds that their installation in the readout system for an Al MKID increased its quality factor by an average of 12% across a range of operating temperatures and powers.

Description

UMN bachelor's thesis in physics

Related to

Replaces

License

Series/Report Number

Funding information

Isbn identifier

Doi identifier

Previously Published Citation

Other identifiers

Suggested citation

Spahn, Gabriel, C. (2021). Improving Performance of a Multiplexed Dark Matter Detector via Infrared Isolation. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/225047.

Content distributed via the University Digital Conservancy may be subject to additional license and use restrictions applied by the depositor. By using these files, users agree to the Terms of Use. Materials in the UDC may contain content that is disturbing and/or harmful. For more information, please see our statement on harmful content in digital repositories.