10–13 Jan 2017
Lawrence Livermore National Laboratory
US/Pacific timezone

Active circuits for resonant axion detectors

13 Jan 2017, 09:55
35m
LVOC - Yosemite Room (Lawrence Livermore National Laboratory)

LVOC - Yosemite Room

Lawrence Livermore National Laboratory

Speaker

Dr Ian Bailey (Lancaster University / Cockcroft Institute of Accelerator Science and Technology)

Description

The key difficulty taking cavity axion detectors forward is the rate of coverage of possible axion masses. With metal cavity boundary conditions determining the modal frequencies, you are limited to the physical modes of the cavity having a high form factor. We examine whether artificial modes generated by feedback through high Q resonant filters outside the cavity could form artificial high-Q modes. Running many of these filters in parallel could generate a picket fence of modes, which might for some configurations allow one to multiply the search rate by the number of these artificial modes. We examine the practicalities of implementing these external resonators including their noise contribution and the question of their behaviour in the quantum limit.

Primary author

Dr Ian Bailey (Lancaster University / Cockcroft Institute of Accelerator Science and Technology)

Co-author

Dr Edward Daw (The University of Sheffield)

Presentation materials