Abstract
AbstractIn a recent publication, Romalis and coworkers report the detection of nuclear magnetic resonance (NMR) in water using optical Faraday rotation (OFR). This groundbreaking result sets the stage for a new class of experiments on a range of samples largely exceeding that previously thought possible. In this manuscript, I review the fundamentals behind Faraday rotation including those aspects of the theory that lead to detection of NMR. I also describe the setup needed for these experiments as well as some possible strategies to improve detection sensitivity. In particular, I discuss the use of an optical cavity as a way to amplify the Faraday rotation induced by a ∼1 cm long fluid sample in the Voigt geometry. With enhancement factors of order ∼103, detection of the nuclear spin signal appears as a challenging though possible experiment, provided the dissimilar physical constraints imposed by a high‐finesse, tunable cavity and high‐field NMR are simultaneously fulfilled. © 2008 Wiley Periodicals, Inc. Concepts Magn Reson Part A 32A: 79–87, 2008.
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