Absolute absorption and dispersion of a rubidium vapour in the hyperfine Paschen-Back regime

Published

October 4, 2012

Author(s)

Svenja A. Knappe, L. Weller, K.S. Kleinbach, M.A. Zentile, C.S. Adams, I.G. Hughes

Abstract

Here we report on measurements of the absolute absorption and dispersion properties of an isotopically pure 87Rb vapour for magnetic fields up to and including 0.6 T. We discuss the various regimes which arise when the hyperfine and Zeeman interactions have different magnitudes, and show that we enter the hyperfine Paschen- Back regime for fields greater than 0.33 T on the Rb D2 line. The experiment uses a compact 1 mm³ microfabricated vapour cell which makes it easy to maintain a uniform and large magnetic field with a small and inexpensive magnet. We find excellent agreement between the experimental results and numerical calculations of the weak probe susceptibility where the line positions and strengths are calculated by matrix diagonalization.

Citation

Journal of Physics B-Atomic Molecular and Optical Physics

Volume

45

Issue

215005

Pub Type

Journals

Keywords

microfabricated vapour cell, spectroscopy, Paschen-Back

Citation

Knappe, S. , Weller, L. , Kleinbach, K. , Zentile, M. , Adams, C. and Hughes, I. (2012), Absolute absorption and dispersion of a rubidium vapour in the hyperfine Paschen-Back regime, Journal of Physics B-Atomic Molecular and Optical Physics (Accessed April 19, 2024)