Physical and Optical Properties
Density 3.98 g/cc Refractive index at 700 nm 1.7638 Ordinary Ray
Melting Point 2040° 1.7556 Extraordinary Ray
Young's Modulus 345 Gpa Birefringence 0.008
MOR 425 MPa Refractive Index vs. Chromium Concentration 3 x 10-3 (Δn / % Cr2O3)
Compressive Strength 2.0 Gpa Fluorescent Lifetime at 0.05% Cr2O3 3 ms at 300 K
Hardness 9 Mhos, 2000 Knoop Fluorescent Linewidth (R1) 5.0 Å at 300K
Thermal Expansion 20° to 50° C 5.8 x 10-6 / ° C Output Wavelength (R1) 6.94.3 nm
20°to 200° C 7.7 x 10-6 / ° C Major Pump Bands 404 nm and 554 nm
Thermal Conductivity at 0° C 46.02 W / (m•K)
at 100° C 25.10 W / (m•K)
at 400° C 12.55 W / (m•K) All values are for 60° orientation material