TY  - JOUR
AU  - Navarro, P.
AU  - Gimeno, B.
AU  - Alvarez Melcon, A.
AU  - Arguedas Cuendis, S.
AU  - Cogollos, C.
AU  - Diaz-Morcillo, A.
AU  - Gallego, J. D.
AU  - Garcia Barcelo, J. M.
AU  - Golm, J.
AU  - Irastorza, I. G.
AU  - Lozano Guerrero, A. J.
AU  - Garay, C. P.
PY  - 2022
DA  - 2022//
TI  - Wide-band full-wave electromagnetic modal analysis of the coupling between dark-matter axions and photons in microwave resonators
T2  - Phys. Dark Universe
JO  - Physics of the Dark Universe
SP  - 101001
EP  - 14pp
VL  - 36
PB  - Elsevier
KW  - Axion detection
KW  - Axion field
KW  - Axion-photon interaction
KW  - BI-RME 3D
KW  - Broad-band analysis
KW  - Dark matter
KW  - Full wave analysis
KW  - Haloscope
KW  - Microwave resonator
KW  - Modal technique
AB  - The electromagnetic coupling axion-photon in a microwave cavity is revisited with the Boundary Integral-Resonant Mode Expansion (BI-RME) 3D technique. Such full-wave modal technique has been applied for the rigorous analysis of the excitation of a microwave cavity with an axion field. In this scenario, the electromagnetic field generated by the axion-photon coupling can be assumed to be driven by equivalent electrical charge and current densities. These densities have been inserted in the general BI-RME 3D equations, which express the RF electromagnetic field existing within a cavity as an integral involving the Dyadic Green's functions of the cavity (under Coulomb gauge) as well as such densities. This method is able to take into account any arbitrary spatial and temporal variation of both magnitude and phase of the axion field. Next, we have obtained a simple network driven by the axion current source, which represents the coupling between the axion field and the resonant modes of the cavity. With this approach, it is possible to calculate the extracted and dissipated RF power as a function of frequency along a broad band and without Cauchy-Lorentz approximations, obtaining the spectrum of the electromagnetic field generated in the cavity, and dealing with modes relatively close to the axion resonant mode. Moreover, with this technique we have a complete knowledge of the signal extracted from the cavity, not only in magnitude but also in phase. This can be an interesting issue for future analysis where the axion phase is an important parameter.
UR  - https://arxiv.org/abs/2107.03137
UR  - https://doi.org/10.1016/j.dark.2022.101001
DO  - 10.1016/j.dark.2022.101001
LA  - English
N1  - WOS:000791333100001
ID  - Navarro_etal2022
ER  -