NONLINEAR REFRACTION AND INCREASING ABSORPTION IN HgCdTe OPTICAL BISTABILITY AT ROOM TEMPERATURE : AN EXPERIMENTAL STUDY S. CECCHI, P. M. COPPO, P. SALIERI et F. T. ARECCHIJ. Phys. Colloques, 49 C2 (1988) C2-135-C2-136DOI: https://doi.org/10.1051/jphyscol:1988231