We present what is to our knowledge the first study of nonlinear four-wave mixing in one-dimensional photonic crystals. The possibility of inhomogeneous-wave excitation at the four-wave mixing frequency ω<sub>3</sub>=2ω<sub>1</sub>− ω<sub>2</sub> for two noncollinear beams of femtosecond laser pulses is demonstrated. As a result of this effect the wave at the frequency of four-wave mixing may be guided along the surface of the photonic crystal. Experiments of this type open the possibility of development of a new tool based on photonic crystal devices for coherent Raman spectroscopy of surfaces and of nanometer and submicrometer scale layers.
© 2002 Optical Society of America
Anatoli V. Andreev, Alexei V. Balakin, Alexander B. Kozlov, Ilya A. Ozheredov, Ilya R. Prudnikov, Alexander P. Shkurinov, Pascal Masselin, and Gael Mouret, "Four-wave mixing in one-dimensional photonic crystals: inhomogeneous-wave excitation," J. Opt. Soc. Am. B 19, 1865-1872 (2002)