Nonlinear optical characteristics of an exciton in a GaSb-capped InSb heterodot: role of size controlA. Chafai, I. Essaoudi, A. Ainane and R. AhujaEur. Phys. J. Plus, 135 2 (2020) 203DOI: https://doi.org/10.1140/epjp/s13360-019-00003-4