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6 CARS Spectroscopy

Part 2. Combustion Diagnostics and Pollutants

  1. Michele Marrocco

Published Online: 15 JUL 2010

DOI: 10.1002/9783527628148.hoc026

Handbook of Combustion

Handbook of Combustion

How to Cite

Marrocco, M. 2010. CARS Spectroscopy. Handbook of Combustion. 2:6:155–188.

Author Information

  1. ENEA - Centro Ricerche Casaccia, S. Maria di Galeria, Rome, Italy

Publication History

  1. Published Online: 15 JUL 2010

Abstract

Coherent anti-Stokes Raman scattering (CARS) is known for its potential for accurate thermometric measurements. In this chapter, an explanation is provided of how the unrivaled sensitivity of CARS spectral lines to temperature combines with chemical selection, high spectral intensities, directionality of the signal, spatial resolution and short integration times. These advantages contrast with the complexity of the technique involving the use of more than one laser beam. Details are presented of the fundamental principles and some typical examples are given. Uses related to species detection in current research and perspectives are also briefly outlined.

Keywords:

  • Coherent anti-Stokes Raman scattering;
  • combustion diagnostics;
  • gas thermometry;
  • laser spectroscopy;
  • spectroscopic techniques;
  • nitrogen;
  • hydrogen;
  • vibrational and rotational frequencies