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Polarization spectroscopy and magnetically-induced dichroism of the potassium D_2 lines

Pahwa, K. and Mudarikwa, L. and Goldwin, J. (2012) Polarization spectroscopy and magnetically-induced dichroism of the potassium D_2 lines. Optics Express, 20 (16). p. 17456. ISSN 1094-4087

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URL of Published Version: http://dx.doi.org/10.1364/OE.20.017456

Identification Number/DOI: doi:10.1364/OE.20.017456

We study modulation-free methods for producing sub-Doppler, dispersive line shapes for laser stabilization near the potassium D2 transitions at 767 nm. Polarization spectroscopy is performed and a comparison is made between the use of a mirror or beam splitter for aligning the counter-propagating pump and probe beams. Conventional magnetically-induced dichroism is found to suffer from a small dispersion and large background offset. We therefore introduce a modified scheme, using two spatially separated pump-probe beam pairs. Finally we compare our results to methods using phase modulation and heterodyne detection.

Type of Work:Article
Date:2012 (Publication)
Department:School of Physics and Astronomy
Additional Information:

This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: [article URL]. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.

Subjects:QC Physics
Institution:University of Birmingham
Copyright Holders:Optical Society of America
ID Code:1491
Refereed:YES
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