Abstract

A light, compact optical isolator using an atomic vapor in the hyperfine Paschen–Back regime is presented. Absolute transmission spectra for experiment and theory through an isotopically pure ${}^{87}\mathrm{Rb}$ vapor cell show excellent agreement for fields of 0.6 T. We show $\pi /4$ rotation for a linearly polarized beam in the vicinity of the ${\mathrm{D}}_2$ line and achieve an isolation of 30 dB with a transmission $>95\%$.

© 2012 Optical Society of America

Hyperfine Paschen–Back regime realized in Rb nanocell

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Optical detection of potassium chloride vapor using collinear photofragmentation and atomic absorption spectroscopy

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