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A System for Cancellation of Two-Level System Noise in Kinetic Inductance Devices


Meiburg, Alexander (2018) A System for Cancellation of Two-Level System Noise in Kinetic Inductance Devices. Senior thesis (Major), California Institute of Technology. doi:10.7907/372p-e428.


Kinetic Inductance Detectors (KIDs) are showing promise in a variety of low-light applications photometry applications, notably in observing B-mode polarization of the cosmic microwave background. These devices are read out by modulating the inductance of an LC resonator through light, and observing the shift in resonant frequency. Among several contributing sources of noise is Two-Level System noise (TLS noise) that causes low-loss drift in the frequency. Under certain assumptions of the source of the noise, we propose a new dual-resonator design that would allow the TLS noise to be observed independently of the signal, and thus cancelled out. This design comes at a roughly factor-of-2 cost in component size and sensitivity. We designed a manufactured a niobium-on-silicon chip, but encountered issues in that we were unable to observe enough TLS noise to conclusively say that the cancellation works.

Item Type:Thesis (Senior thesis (Major))
Subject Keywords:mkid, kid, microwave kinetic inductance device, kinetic inductance device, tls, two-level system, photometry
Degree Grantor:California Institute of Technology
Division:Physics, Mathematics and Astronomy
Major Option:Physics
Thesis Availability:Public (worldwide access)
Research Advisor(s):
  • Zmuidzinas, Jonas
Thesis Committee:
  • Stone, Edward C. (chair)
  • Zmuidzinas, Jonas
  • Frautschi, Steven C.
  • Libbrecht, Kenneth George
  • Politzer, Hugh David
  • Refael, Gil
Defense Date:22 May 2018
Non-Caltech Author Email:alex.meiburg (AT)
Record Number:CaltechTHESIS:01282022-221737571
Persistent URL:
Meiburg, Alexander0000-0002-4506-9146
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:14486
Deposited By: Alexander Meiburg
Deposited On:28 Jan 2022 23:32
Last Modified:28 Jan 2022 23:33

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