Exploiting higher-order resonant modes for axion haloscopes
arXiv:1910.00793 · doi:10.1088/1361-6471/ab5ace
Abstract
The haloscope is one of the most sensitive approaches to the QCD axion physics within the region where the axion is considered to be a dark matter candidate. Current experimental sensitivities, which rely on the lowest fundamental TM010 mode of a cylindrical cavity, are limited to relatively low mass regions. Exploiting higher-order resonant modes would be beneficial because it will enable us to extend the search range with no volume loss and higher quality factors. This approach has been discarded mainly because of the significant degradation of form factor, and difficulty with frequency tuning. Here we introduce a new tuning mechanism concept which both enhances the form factor and yields reasonable frequency tunability. A proof of concept demonstration verified that this design is feasible for high mass axion search experiments.
14 pages, 10 figures
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- Direct Detection of Dark Matter -- APPEC Committee Report
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- Dielectric-Boosted Sensitivity to Cylindrical Azimuthally Varying Transverse-Magnetic Resonant Modes in an Axion Haloscope
- A first proof of principle booster setup for the MADMAX dielectric haloscope
- Tunable photonic crystal haloscope for high-mass axion searches
- Discovering QCD-Coupled Axion Dark Matter with Polarization Haloscopes
- Development of a cavity with photonic crystal structure for axion searches
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- Sensitivity improvement in hidden photon detection using resonant cavities
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- A new class of axion haloscope resonators: the polygonal coaxial cavity