Saturated-absorption spectroscopy revisited: atomic transitions in strong magnetic fields (>20  mT) with a micrometer-thin cell

The existence of crossover resonances makes saturated-absorption (SA) spectra very complicated when external magnetic field B is applied. It is demonstrated for the first time, to the best of our knowledge, that the use of micrometric-thin cells (MTCs, L≈40  μm) allows application of SA for quantita...

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Bibliographic Details
Published in:Optics letters 2014-04, Vol.39 (8), p.2270-2273
Main Authors: Sargsyan, A, Tonoyan, A, Mirzoyan, R, Sarkisyan, D, Wojciechowski, A M, Stabrawa, A, Gawlik, W
Format: Article
Language:English
Subjects:
Approximation
Crossovers
Locks
Magnetic fields
Micrometers
Optical frequency
Spectra
Spectroscopy
Splitting
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Summary:The existence of crossover resonances makes saturated-absorption (SA) spectra very complicated when external magnetic field B is applied. It is demonstrated for the first time, to the best of our knowledge, that the use of micrometric-thin cells (MTCs, L≈40  μm) allows application of SA for quantitative studies of frequency splitting and shifts of the Rb atomic transitions in a wide range of external magnetic fields, from 0.2 up to 6 kG (20-600 mT). We compare the SA spectra obtained with the MTC with those obtained with other techniques and present applications for optical magnetometry with micrometer spatial resolution and a broadly tunable optical frequency lock.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.39.002270