We describe frequency-domain four-wave mixing spectroscopy measurements near the fundamental band edge in room-temperature GaAs multiple quantum wells. The line-shape information gives a measure of the dynamical behavior of the material and what is to our knowledge the first observation of an interference line shape due to a dominant slow contribution to the nonlinear response.
© 1989 Optical Society of America
J. T. Remillard, H. Wang, M. D. Webb, D. G. Steel, J. Oh, J. Pamulapati, and P. K. Bhattacharya, "High-resolution nonlinear laser spectroscopy of room-temperature GaAs quantum-well structures: observation of interference effects," Opt. Lett. 14, 1131-1133 (1989)