Strain effects of InP/Si and InP/porous Si studied by spectroscopic ellipsometryM. Lajnef, N. Ben Sedrine, J. C. Harmand, L. Travers, H. Ezzaouia and R. ChtourouEur. Phys. J. Appl. Phys., 42 2 (2008) 99-102DOI: https://doi.org/10.1051/epjap:2008042