Magnetic detection of millimeter waves
Departament de Física Fonamental,
Universitat de Barcelona Avda. Diagonal 647, E-08028, Barcelona
Accepted: 14 August 2003
In this paper we show experimental results for the detection of millimeter waves based upon the response of the magnetisation of a material inside a resonator. The experimental evidence is that the magnetisation of the materials shows dramatic changes for the frequencies that match the modes of the resonator-magnetic-material system. The results shown here refer to the use of gadolinium at room temperature and hexa-hydrated iron chloride at low temperature inside a copper loop having resonant frequencies below 20.
PACS: 07.57.Kp – Bolometers; infrared, submillimeter wave, microwave, and radiowave receivers and detectors / 52.70.Gw – Radio-frequency and microwave measurements / 75.20.-g – Diamagnetism, paramagnetism, and superparamagnetism
© EDP Sciences, 2003