Abstract

An external optical cavity pulse stretcher for nanosecond-long laser pulses has been applied to coherent anti-Stokes Raman spectroscopy (CARS). An increased signal-to-noise ratio was achieved for both vibrational and pure rotational CARS, while the power density of the laser beams remained constant. Moreover, it was demonstrated that the use of the pulse stretcher also leads to improved precision of the determined temperatures and concentrations as a result of repeated excitation of the dye laser.

© 2004 Optical Society of America

Quantitative one-dimensional imaging using picosecond dual-broadband pure-rotational coherent anti-Stokes Raman spectroscopy

Christopher J. Kliewer, Yi Gao, Thomas Seeger, Brian D. Patterson, Roger L. Farrow, and Thomas B. Settersten
Appl. Opt. 50(12) 1770-1778 (2011)

Gas-phase temperature measurement in the vaporizing spray of a gasoline direct-injection injector by use of pure rotational coherent anti-Stokes Raman scattering

Frank Beyrau, Andreas Bräuer, Thomas Seeger, and Alfred Leipertz
Opt. Lett. 29(3) 247-249 (2004)

Development of a simplified dual-pump dual-broadband coherent anti-Stokes Raman scattering system

Markus C. Weikl, Yifang Cong, Thomas Seeger, and Alfred Leipertz
Appl. Opt. 48(4) B43-B50 (2009)

Dual-pump dual-broadband coherent anti-Stokes Raman scattering in reacting flows

Sukesh Roy, Terrence R. Meyer, Robert P. Lucht, Mikael Afzelius, Per-Erik Bengtsson, and James R. Gord
Opt. Lett. 29(16) 1843-1845 (2004)

Dynamic range enhancement for pure rotational coherent anti-Stokes Raman scattering thermometry by use of an optical arrangement with two dye lasers

Albert Thumann and Alfred Leipertz
Appl. Opt. 37(12) 2327-2333 (1998)