High-Spatial-Resolution Monitoring of Strong Magnetic Field using Rb vapor Nanometric-Thin Cell

Abstract

We have implemented the so-called $\lambda$-Zeeman technique (LZT) to investigate individual hyperfine transitions between Zeeman sublevels of the Rb atoms in a strong external magnetic field $B$ in the range of $2500-5000$ G (recently it was established that LZT is very convenient for the range of $10-2500$ G). Atoms are confined in a nanometric thin cell (NTC) with the thickness $L=\lambda$, where $\lambda$ is the resonant wavelength 794 nm for Rb $D_1$ line. Narrow velocity selective optical pumping (VSOP) resonances in the transmission spectrum of the NTC are split into several components in a magnetic field with the frequency positions and transition probabilities depending on the $B$-field. Possible applications are described, such as magnetometers with nanometric local spatial resolution and tunable atomic frequency references.

12 pages

References in corpus (1)

• Saturated absorption spectroscopy: elimination of crossover resonances by use of a nanocell

Cited by in corpus (6)

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• Wide range linear magnetometer based on a sub-microsized K vapor cell