The invention relates to an optical method and device for measurement of magnetic induction of small magnetic fields and small changes in magnetic fields of the order of ~ [mu]Gauss to ~ 10 Gauss based on Coherent Resonances at the Zeeman sublevels of a single hyperfine transition in alkali atoms. The atomic system is coherently excited by means of a laser source with a modulation of the light frequency with a frequency lower than 1 GHz. The modulation frequency at which the Coherent Resonances are registered is a measure of the induction of the existing magnetic field.
Biancalana, V., Dancheva, Y., Mariotti, E., Moi, L., Cartaleva, S., Andreeva, C.H. (2008)Method and device for measurement of magnetic induction. . Brevetto No. EP1570282.
Method and device for measurement of magnetic induction
Biancalana, V.;Mariotti, E.;Moi, L.;
2008-01-01
Abstract
The invention relates to an optical method and device for measurement of magnetic induction of small magnetic fields and small changes in magnetic fields of the order of ~ [mu]Gauss to ~ 10 Gauss based on Coherent Resonances at the Zeeman sublevels of a single hyperfine transition in alkali atoms. The atomic system is coherently excited by means of a laser source with a modulation of the light frequency with a frequency lower than 1 GHz. The modulation frequency at which the Coherent Resonances are registered is a measure of the induction of the existing magnetic field.
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https://hdl.handle.net/11365/22196
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