Resonant and time-resolved spin noise spectroscopy

We demonstrate a method to extend the range of pulsed laser spin noise measurements to long spin lifetimes. We use an analog detection scheme with a bandwidth limited only by laser pulse duration. Our model uses statistics and Bloch-Torrey equations to extract the Lande g-factor, Faraday cross-secti...

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Bibliographic Details
Published in:Applied physics letters 2015-11, Vol.107 (18)
Main Authors: Pursley, Brennan C., Song, X., Sih, V.
Format: Article
Language:English
Subjects:
Applied physics
Correlation analysis
Delay
Lasers
Pulse duration
Pulsed lasers
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Summary:We demonstrate a method to extend the range of pulsed laser spin noise measurements to long spin lifetimes. We use an analog detection scheme with a bandwidth limited only by laser pulse duration. Our model uses statistics and Bloch-Torrey equations to extract the Lande g-factor, Faraday cross-section σF, and spin lifetime τs, while accounting for finite detector response. Varying the magnetic field with a fixed probe-probe delay yields τs when it is longer than the laser repetition period. Varying the probe-probe delay with a fixed field produces a time-domain measurement of the correlation function.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4935033