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We present an improvement on the signal-to-background of single-beam coherentanti-Stokes Raman scattering (SB-CARS) spectroscopy measurements for systemsemploying ultrafast supercontinuum sources based on all-normal dispersionphotonic crystal fibers. Improvements to the signal-to-background arise in theuse of a new pulse-reconstruction algorithm based on temporal ptychography,I$^2$PIE. A simple SB-CARS strategy is used to measure the spectrum ofpara-xylene, where the supercontinuum pulses used are compressed usingmultiphoton intrapulse interference phase scan (MIIPS) and, for the first timeto the best of our knowledge, I$^2$PIE using the same single-beam setup. Withthe I$^2$PIE implementation, the signal-to-background is improved by nearly afactor of 4 in comparison with MIIPS. More notably, the integrated SB-CARSspectral intensity is increased by a factor of 6.5.

Implementation of temporal ptychography algorithm, I$^2$PIE, for improved single-beam coherent anti-Stokes Raman scattering measurements