We demonstrate a type of Raman self-focusing and -defocusing that is inherent in operation at maximum coherence. In this regime the two-photon detuning from the Raman resonance controls the refractive index of the medium.
© 2002 Optical Society of America
(020.1670) Atomic and molecular physics : Coherent optical effects
(190.3270) Nonlinear optics : Kerr effect
(190.5650) Nonlinear optics : Raman effect
(320.2250) Ultrafast optics : Femtosecond phenomena
D. R. Walker, D. D. Yavuz, M. Y. Shverdin, G. Y. Yin, A. V. Sokolov, and S. E. Harris, "Raman self-focusing at maximum coherence," Opt. Lett. 27, 2094-2096 (2002)