Journal
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
Volume 47, Issue 7, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0953-4075/47/7/075005
Keywords
Faraday effect; Zeeman shift; hyperfine splitting; magneto-optical effects; dispersion
Categories
Funding
- EPSRC [EP/H002839/1, EP/F025459/1]
- Durham University
- Ogden trust
- Engineering and Physical Sciences Research Council [EP/F025459/1, EP/H002839/1, 1089940] Funding Source: researchfish
- EPSRC [EP/F025459/1, EP/H002839/1] Funding Source: UKRI
Ask authors/readers for more resources
We investigate experimentally and theoretically the Faraday effect in an atomic medium in the hyperfine Paschen-Back regime, where the Zeeman interaction is larger than the hyperfine splitting. We use a small permanent magnet and a micro-fabricated vapour cell, giving magnetic fields of the order of a tesla. We show that for low absorption and small rotation angles, the refractive index is well approximated by the Faraday rotation signal, giving a simple way to measure the atomic refractive index. Fitting to the atomic spectra, we achieve magnetic field sensitivity at the 10(-4) level. Finally we note that the Faraday signal shows zero crossings which can be used as temperature insensitive error signals for laser frequency stabilization at large detuning. The theoretical sensitivity for Rb-87 is found to be similar to 40 kHz degrees C-1
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available