Abstract
The coupling of the ‘Standard Model Axion’ exists within a finite band, the mass is only bounded by experiment and observation. This leads to the need for multiple experiments dedicated to searching specific mass regions. The current ADMX run plan uses cylindrical microwave cavities to act as a detector in the frequency range of 500 MHz–10 GHz. Beyond 10 GHz the relative performance of microwave cavities is reduced and therefore new technology is needed. Photonic bandgap cavities act like conventional cavities but they can operate in the 10–100 GHz with little degradation in performance. A crucial aspect of the haloscope technique employed in ADMX is the ability to tune the frequency of the cavity. In this report it will be shown that PBGs are tuneable within 10% of the fundamental frequency while retaining a high Quality factor.
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Acknowledgements
Lawrence Livermore National Laboratory tracking number LLNL-PROC-746080. This work was supported by the U.S. Department of Energy through Grants No. DE-SC0009723, No. DE-SC0010296, No. DE-SC0010280, No. DE-SC0010280, No. DEFG02-97ER41029, No. DE-FG02-96ER40956, No. DEAC52-07NA27344, and No. DE-C03-76SF00098. Fermilab is a U.S. Department of Energy, Office of Science, HEP User Facility. Fermilab is managed by Fermi Research Alliance, LLC (FRA), acting under Contract No. DE-AC02-07CH11359. Additional support was provided by the Heising-Simons Foundation and by the Lawrence Livermore National Laboratory and Pacific Northwest National Laboratory LDRD offices.
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Woollett, N., Carosi, G. (2018). Photonic Band Gap Cavities for a Future ADMX. In: Carosi, G., Rybka, G., van Bibber, K. (eds) Microwave Cavities and Detectors for Axion Research. Springer Proceedings in Physics, vol 211. Springer, Cham. https://doi.org/10.1007/978-3-319-92726-8_7
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DOI: https://doi.org/10.1007/978-3-319-92726-8_7
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