Radiator reorientation kernels are measured in Stark-tunable infrared transitions of 13CH3F. The dominant (ΔM = 1) kernel is obtained by a scale transformation from the shape of a two-pulse photon-echo intensity versus Stark voltage curve, at fixed large echo time delay. The quantum-mechanical transport equation in the presence of coherence M transfer and a dc electric field is reviewed, and the applications of photon echoes in a tunable Stark field to measure reorientation collision kernels are discussed.
© 1986 Optical Society of America
J. M. Liang, R. R. Dasari, M. S. Feld, and J. E. Thomas, "Molecular radiator reorientation collision kernels from Stark sublevel photon echoes," J. Opt. Soc. Am. B 3, 506-513 (1986)