Absorption measurements of mixed silver halide crystals and fibers by laser calorimetry

The absorption coefficients of mixed silver halide crystals and fibers were measured by different laser calorimetric methods: Adiabatic for crystals and isothermal for fibers. The composition dependence of the bulk absorption coefficients β_b of crystals and polycrystalline fibers at 10.6-μm (CO₂ radiation) was investigated. It was found that the crystal surface absorption As is dependent on the surface polishing quality. All experimental results of β_b are smaller than those reported in the literature.