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 micro- metric-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 (20600 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. 

Autorzy / Authors: 
A. Sargsyan, A. Tonoyan, R. Mirzoyan, D. Sarkisyan, A.M. Wojciechowski, A. Stabrawa, and W. Gawlik
Opt. Lett. 39, 2270
Tematyka badań: 
Spektroskopia laserowa
Optyka nieliniowa