Fast polarimetry system for the application to spin quantum non-demolition measurement
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We report the development of a fast pulse polarimeter for the application to quantum non-demolition measurement of atomic spin (spin QND). The developed system was tunable to the atomic resonance of a ytterbium atom and has narrow laser line width suitable for spin QND. Using the developed polarimeter, we successfully demonstrated the measurement of the vacuum noise, with 106 to 107 photon number per pulse.
KeywordsPhoton Number Atomic Resonance Atomic Ensemble Stokes Vector Reference Cavity
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