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

Abstract

The existence of cross-over resonances makes saturated-absorption spectra very complicated when external magnetic field B is applied. It is demonstrated for the first time that the use of micrometric-thin cells (MTC, $L\approx 40\mu$m) allows application of SA for quantitative studies of frequency splittings 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 reference.

4 pages, 6 figures

References in corpus (4)

• An optical isolator using an atomic vapor in the hyperfine Paschen-Back regime
• Saturation effects in the sub-Doppler spectroscopy of Cesium vapor confined in an Extremely Thin Cell
• Hyperfine Paschen-Back regime in alkali metal atoms: consistency of two theoretical considerations and experiment
• Saturated absorption spectroscopy: elimination of crossover resonances by use of a nanocell

Cited by in corpus (14)

• Widefield Microwave Imaging in Alkali Vapor Cells with sub-100 um Resolution
• Decoupling of hyperfine structure of Cs $D_1$ line in strong magnetic field studied by selective reflection from a nanocell
• Complete hyperfine Paschen-Back regime at relatively small magnetic fields realized in Potassium nano-cell
• Circular dichroism in atomic vapors: magnetically induced transitions responsible for two distinct behaviors
• Dark resonance formation with magnetically-induced transitions: extension of spectral range and giant circular dichroism
• Atomic transitions of Rb, $D_2$ line in strong magnetic fields: hyperfine Paschen-Back regime
• Simultaneous two-photon resonant optical laser locking (STROLLing) in the hyperfine Paschen--Back regime
• Magnetic field--induced modification of selection rules for Rb D${}_2$ line monitored by selective reflection from a vapor nanocell
• Wide range linear magnetometer based on a sub-microsized K vapor cell
• Low-drift Zeeman shifted atomic frequency reference
• Features of Magnetically-induced atomic transitions of Rb D${}_1$ line studied by Doppler-free method based on the second derivative of the absorption spectra
• Formation of strongly shifted EIT resonances using "forbidden" transitions of Cesium
• Stabilization of a laser on a large-detuned atomic-reference frequency by resonant interferometry
• Saturated absorption technique used in Potassium microcell for magnetic field sensing