Phys. Rev. Lett. 102, 202001 (2009) [4 pages]Proposal for a Search for Cosmic Axions Using an Optical CavityReceived 1 October 2008; published 22 May 2009 A high finesse optical cavity can be used to search for cosmic axions in the mass range 10-6<ma<10-4 eV. Either a two-arm or a single-arm cavity is suitable, and in either case the signal appears as resonant sidebands imposed on the carrier. Assuming for the local axion density the usual figure of ρa=500 Mev/cm3, the KSVZ axion line gaγγ/ma=0.4 GeV-2, can be reached over the full mass range in a 1 yr search. © 2009 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.102.202001
DOI:
10.1103/PhysRevLett.102.202001
PACS:
12.38.Qk, 14.80.Mz, 29.90.+r
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