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 (CO(2) radiation) was investigated. It was found that the crystal surface absorption β(s) is dependent on the surface polishing quality. All experimental results of β(b) are smaller than those reported in the literature.