INVESTIGATION OF LONG WAVELENGTH INFRARED GLASSES Open PDF Document Details Document Type Technical Report Publication Date Jan 31, 1963 Accession Number AD0295669 Entities People C.j. Billian Tags Communities of Interest Energy and Power Technologies DTIC Thesaurus Topics Absorption Coefficients Coefficients Contracts Glass Government Procurement High Temperature Infrared Optical Materials Long Wavelengths Materials Measurement Optical Materials Physical Properties Refractive Index Silica Glass Softening Point Thermal Resistance Thickness