Toward Gas-Phase Thermometry Using Pure-Rotational Impulsive Stimulated Raman Scattering Spectroscopy with a Low-Energy Femtosecond Oscillator Academic Article uri icon


  • Femtosecond coherent Raman techniques have significant diagnostic value for the sensitive and non-intrusive measurement of temperature, pressure, and composition of gas mixtures. Due to the low density of samples, however, such measurements make use of high-energy amplified laser sources, with unwieldy and costly experimental setups. In this paper, we demonstrate an experimental setup equipped with a low-energy and low-average-power femtosecond oscillator allowing measurement of the pure-rotational spectrum of nitrogen down to atmospheric pressure using impulsive stimulated Raman scattering. Using a simplified model to analyze the experimental data we were able to derive the gas temperature with reasonable accuracy.

published proceedings


author list (cited authors)

  • Falconieri, M., Tedeschi, D., Gagliardi, S., Rondino, F., Marrocco, M., & Kulatilaka, W.

citation count

  • 0

complete list of authors

  • Falconieri, Mauro||Tedeschi, Davide||Gagliardi, Serena||Rondino, Flaminia||Marrocco, Michele||Kulatilaka, Waruna DD

publication date

  • 2022