We present direct experimental evidence for a non-instantaneous nonlinear response in TiO2. An asymmetry in interferometric FROG measurements indicates a relaxation time constant of about 5 fs
© 2012 OSA
S. K. Das, M. Bock, R. Grunwald, B. Borchers, G. Steinmeyer, D. Ristau, T. Vockerodt, and U. Morgner, "First Experimental Evidence for a Non-instantaneous Lifetime of Nonlinear Optical Chi(3) Effects," in Lasers, Sources, and Related Photonic Devices, OSA Technical Digest (CD) (Optical Society of America, 2012), paper AT5A.6.
References are not available for this paper.