Three-laser coherent anti-Stokes Raman scattering (CARS) was used to acquire simultaneously pure rotational and vibrational spectra from the nitrogen molecule. This technique has the potential for accurate temperature measurements over a wider temperature range than either vibrational or pure rotational CARS alone. Third-order susceptibilities for three-laser CARS are derived, and polarization effects are discussed.
© 1987 Optical Society of America
Original Manuscript: December 29, 1986
Manuscript Accepted: February 22, 1987
Published: June 1, 1987
Robert P. Lucht, Mark A. Maris, and Richard E. Palmer, "Simultaneous acquisition of pure rotational and vibrational nitrogen spectra using three-laser coherent anti-Stokes Raman spectroscopy," Opt. Lett. 12, 386-388 (1987)