Abstract
A novel non-linear spectroscopy with multiple high-frequency modulated optical frequency combs that is capable of high S/N detection of the non-linear polarization of a system is theoretically derived and analyzed. This detection of the nonlinear optical signature essentially bypasses interference due to the background laser fields and is achieved by obtaining a component of the observed polarization as spikes in the field-free region between consecutive comb-lines. Related experiments have been designed and effective polarization due to such sources have been successfully obtained.
© 2018 The Author(s)
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