Optimization of sub-Doppler DAVLL on the rubidium D2 line

Harris, M.L.; Cornish, S.L.; Tripathi, A.; Hughes, I.G.

Abstract

We discuss the physics of sub-Doppler DAVLL spectroscopy, which employs a pump beam with an axial magnetic field to induce dichroism in an atomic vapour. The dichroism is measured by a counterpropagating probe beam, while the pump generates sub-Doppler spectral features. The magnitude of the field is chosen to shift the frequency of the absorption features by an amount comparable to their linewidth. The reference signals obtained are ideal for laser frequency discriminant signals (laser 'locking' to the atomic transition) without frequency modulation. We discuss the sensitivity of the spectra to magnetic field, laser power and polarization purity, and suggest operating parameters for the 87Rb F = 2 → F' = 3, 2 crossover transition which maximize the signal amplitude and gradient.

Citation

Harris, M., Cornish, S., Tripathi, A., & Hughes, I. (2008). Optimization of sub-Doppler DAVLL on the rubidium D2 line. Journal of Physics B: Atomic, Molecular and Optical Physics, 41(8), Article 085401. https://doi.org/10.1088/0953-4075/41/8/085401

• Journal Article Type: Article
• Publication Date: Apr 4, 2008
• Deposit Date: Jan 23, 2012
• Publicly Available Date: Apr 30, 2014
• Journal: Journal of Physics B: Atomic, Molecular and Optical Physics
• Print ISSN: 0953-4075
• Electronic ISSN: 1361-6455
• Publisher: IOP Publishing
• Peer Reviewed: Peer Reviewed
• Volume: 41
• Issue: 8
• Article Number: 085401
• DOI: https://doi.org/10.1088/0953-4075/41/8/085401
• Public URL: https://durham-repository.worktribe.com/output/1497657