We propose a variation, based on very low energy and extremely intense photon sources, on the well established technique of Light-Shining-through-Wall (LSW) experiments for axion-like particle searches. With radiation sources at 30 GHz, we compute that present laboratory exclusion limits on axion-like particles might be improved by at least four orders of magnitude, for masses m_a <~ 0.01~meV. This could motivate research and development programs on dedicated single-photon sub-THz detectors.
@article{arxiv.1510.06892,
title = {Axion-like particle searches with sub-THz photons},
author = {L. Capparelli and G. Cavoto and J. Ferretti and F. Giazotto and A. D. Polosa and P. Spagnolo},
journal= {arXiv preprint arXiv:1510.06892},
year = {2016}
}
Comments
10 pages, 5 figures, comments added, 1 figure added, to appear in Phys. Dark. Univ