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dc.contributor.authorSwar, Maheswar-
dc.contributor.authorRoy, Dibyendu-
dc.contributor.authorDhanalakshmi, Dhamodaran-
dc.contributor.authorChaudhuri, Saptarishi-
dc.contributor.authorRoy, Sanjukta-
dc.contributor.authorRamachandran, Hema-
dc.identifier.citationEmerging Trends in Advanced Spectroscopy,Chapter 11,2019 p113-125en_US
dc.identifier.issn9788770220811 (Online)-
dc.descriptionRestricted Accessen_US
dc.description.abstractWe describe a relatively non-invasive optical spectroscopy technique, known as spin noise spectroscopy (SNS), to probe spontaneous magnetization fluctuations in an alkali atomic vapor at thermal equilibrium. The atomic magnetization at a non-zero temperature fluctuates about its equilibrium value, and such magnetization (spin) noise imparts fluctuation in the measured Faraday rotation of a far-detuned, linearly polarized probe laser beam passing through the vapor. This Faraday rotation fluctuation reveals the intrinsic spin dynamics of the electrons in the alkali vapor. We present a systematic experimental study of the SNS realized in thermal rubidium vapor and illustrate how one can measure various magnetic and chemical properties of the sample with minimal perturbation. We also demonstrate the applicability of this spectroscopy technique in measuring the spin populations and their dynamics in different hyperfine and magnetic levels by optically pumping the atomic system.en_US
dc.publisherRiver Publishers Series in Optics and Photonicsen_US
dc.rights2019 River Publishers Series in Optics and Photonicsen_US
dc.titleMeasurements of Temporal Fluctuations of Magnetization in Alkali Vapor and Applicationsen_US
dc.typeBook chapteren_US
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