ATTRACT TWD Symposium: Trends, Wishes and Dreams in Detection and Imaging Technologies

STAX. Axion-like particle searches with sub-THz photons

Not scheduled

10m

Auditorium & Conference Room (Other Institutes)

Speakers

Antonio Polosa (Universita' La Sapienza, Roma - Italy)Dr Francesco Giazotto (NEST, Istituto Nanoscienze-CNR and Scuola Normale Superiore) Gianluca Cavoto (Universita e INFN, Roma I (IT)) Jacopo Ferretti (INFN - National Institute for Nuclear Physics)Dr Ludovico Capparelli (UCLA) Paolo Spagnolo (Universita di Pisa & INFN (IT))

Description

We discuss an improved detection scheme for a light-shining-through-wall (LSW) experiment for axion-like particle searches [Capparelli, Cavoto, Ferretti, Giazotto, Polosa and Spagnolo, arXiv: 1510.06892]. We propose to use: extremely intense photon fluxes (from 100 kW to 1MW) from gyrotron sources at frequencies around 30 GHz; single photon detectors in this frequency domain, with efficiency $\approx 1$, based on transition-edge-sensors (TES); high quality factor Fabry-Perot cavities in the microwave domain (Q $\approx 10^4-10^5$), both on the photon-axion conversion and photon regeneration sides.
We compute that present laboratory exclusion limits on axion-like particles might be improved by at least four orders of magnitude for axion masses $\le 0.01$ meV.