Optical properties of pure germanium in the range of 2.5 15 μm Valyavko, V. V. ; Osipov, V. P. ; Grishin, V. P. ; Ginzburg, M. I. ; Milenin, É. S. Abstract Publication: Journal of Applied Spectroscopy Pub Date: April 1979 DOI: 10.1007/BF00616193 Bibcode: 1979JApSp..30..516V