Silver Bromide AgBr Optics
Silver Bromide (AgBr)
Silver Bromide (AgBr) is a useful material for IR applications extending to 35 microns and where sensitivity to moisture is a concern. This soft crystal deforms under heat and pressure. It is forged in polished dies to create IR windows and lenses. Silver Bromide (AgBr) is malleable and yellow in color. It darkens under UV radiation, but mild darkening does not affect the IR performance. Silver Bromide (AgBr) is corrosive to metals and interface should be avoided.
Contact REFLEX Analytical to discuss fabrication according to your specifications.
Material Characteristics
Transmission Range 0.45 to 35 microns Refractive Index 2.167 at 10 microns Reflection Loss 23.9% at 10 microns (2 surfaces) Absorption Coefficient Not known Reststrahlen Peak 112.7 microns dn/dT Not known dn/du = 0 Not known Density 6.44 g/cc Melting Point 432 °C Thermal Conductivity 1.21 W m-1 K-1 at 273 K Thermal Expansion 30 x 10-6/°C at 273 K Hardness Knoop 7 Specific Heat Capacity 292 J Kg-1 K-1 Dielectric Constant 13.1 at 1MHz Youngs Modulus (E) 31.97 Gpa Shear Modulus (G) Not Known Bulk Modulus (K) 44.03 Gpa Elastic Coefficients C11=56.3 C12=32.3 C44=7.25 Apparent Elastic Limit 26.2 Mpa Poisson Ratio Not Known Solubility 12 x 10-6g/100g water at 20°C Molecular Weight 187.78 Class/Structure Cubic FCC, NaCl, Fm3m, No cleavage, cold flows
Silver Bromide (AgBr) is a useful material for IR applications extending to 35 microns and where sensitivity to moisture is a concern. This soft crystal deforms under heat and pressure. It is forged in polished dies to create IR windows and lenses. Silver Bromide (AgBr) is malleable and yellow in color. It darkens under UV radiation, but mild darkening does not affect the IR performance. Silver Bromide (AgBr) is corrosive to metals and interface should be avoided.
Contact REFLEX Analytical to discuss fabrication according to your specifications.
Material Characteristics
Transmission Range 0.45 to 35 microns Refractive Index 2.167 at 10 microns Reflection Loss 23.9% at 10 microns (2 surfaces) Absorption Coefficient Not known Reststrahlen Peak 112.7 microns dn/dT Not known dn/du = 0 Not known Density 6.44 g/cc Melting Point 432 °C Thermal Conductivity 1.21 W m-1 K-1 at 273 K Thermal Expansion 30 x 10-6/°C at 273 K Hardness Knoop 7 Specific Heat Capacity 292 J Kg-1 K-1 Dielectric Constant 13.1 at 1MHz Youngs Modulus (E) 31.97 Gpa Shear Modulus (G) Not Known Bulk Modulus (K) 44.03 Gpa Elastic Coefficients C11=56.3 C12=32.3 C44=7.25 Apparent Elastic Limit 26.2 Mpa Poisson Ratio Not Known Solubility 12 x 10-6g/100g water at 20°C Molecular Weight 187.78 Class/Structure Cubic FCC, NaCl, Fm3m, No cleavage, cold flows
