Strong Kerr-signals from optically isotropic ZnSe nanocrystals: a study using Mach-Zehnder principlesD. Mohanta, S. Biswas and A. ChoudhuryEur. Phys. J. D, 55 3 (2009) 679-683DOI: https://doi.org/10.1140/epjd/e2009-00225-3