Femtosecond phase-and-polarization control for background-free coherent anti-Stokes Raman spectroscopy.
Phase-and-polarization coherent control is applied to control the nonlinear response of a quantum system. We use it to obtain high-resolution background-free single-pulse coherent anti-Stokes Raman spectra. The ability to control both the spectral phase and the spectral polarization enables measurement of a specific off-diagonal susceptibility tensor element while exploiting the different spectral response of the resonant Raman signal and the nonresonant background to achieve maximal background suppression.
Oron
Dan
D
Department of Physics of Complex Systems, Weizmann Institute of Science, Rehovot 76100, Israel.
Dudovich
Nirit
N
Silberberg
Yaron
Y