• Corpus ID: 119010112

Comment on "Tunable Supermode Dielectric Resonators for Axion Dark-Matter Haloscopes"

  title={Comment on "Tunable Supermode Dielectric Resonators for Axion Dark-Matter Haloscopes"},
  author={Jinsu Kim and Sung Woo Youn and Junu Jeong and Yannis K. Semertzidis},
  journal={arXiv: Instrumentation and Detectors},
We comment on a recently published paper, Phys. Rev. Applied 9, 014028 (2018), which presents frequency-tuning mechanisms for dielectric resonators and demonstrates their potential application to axion haloscopes. One of the schemes introduces a cylindrical dielectric hollow and splits it in the axial direction to tune the frequency. The authors claim that this scheme offers a 1 to 2-order-of-magnitude improvement in axion search sensitivity in exploiting a higher-order resonant mode. We find… 
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