Hybrid femtosecond/picosecond pure‐rotational coherent anti‐Stokes Raman scattering with chirped probe pulses

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EarlyView Article

  • Published: Oct 27, 2017
  • Author: Chaobo Yang, David Escofet‐Martin, Derek Dunn‐Rankin, Yu‐Chien Chien, Xin Yu, Shaul Mukamel
  • Journal: Journal of Raman Spectroscopy

Abstract

The influence of probe laser chirp on hybrid femtosecond/picosecond pure‐rotational coherent anti‐Stokes Raman scattering is studied theoretically and experimentally. Experiments of N2(hybrid fs/ps pure‐rotational coherent anti‐Stokes Raman scattering) are carried out using an in‐house built second harmonic bandwidth compressor, results with different probe chirps of are reported. The experimental spectra are fitted with and without considering probe chirp. Including the chirp improves the fit to experimental spectra at all probe delays. The effect of probe pulse chirp is evaluated through a quantitative analysis of matching residuals.

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