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Conferences > CLEO_AT > 2016 > ATh3J > ATh3J.3

Analysis of Nitric Oxide Isotopes via Differential Faraday Rotation Spectroscopy

Eric J. Zhang, Daniel M. Sigman, and Gerard Wysocki

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Abstract

We present real-time optical polarization subtraction for calibration of Faraday rotation spectra. Noise analysis yields minor isotope sensitivity of 3.0 ppbv·Hz−1/2 and 1.7×10−8 rad·Hz−1/2 noise-equivalent angle. Sub-permil ratiometric precision is achieved at integration times >100 s.

© 2016 Optical Society of America

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