We have experimentally demonstrated coherent anti-Stokes Raman scattering in both forward and backward directions from thin samples of dipicolinic acid crystalline. The signal observed in the backscattered, phased-mismatched direction is 3 orders of magnitude stronger than would be expected without scattering from the crystal's inhomogeneities. We present a theoretical explanation of these results, based on the theory of random diffraction gratings and discuss possible applications.
© 2005 Optical Society of America
Sherif F. Hanna, Lei Wang, Zoe-Elizabeth Sariyanni, Nikolai G. Kalugin, Robert P. Lucht, Vladimir A. Sautenkov, Alexei V. Sokolov, Yuri Rostovtsev, and Marlan O. Scully, "Observation of coherent anti-Stokes Raman scattering in the phase-mismatched direction," J. Opt. Soc. Am. B 22, 1979-1984 (2005)