Nonlinear absorption and refraction study of barium chalcogenide crystals

This research experimentally investigates the nonlinear absorption and refraction in promising nonlinear crystals, sulfur-containing and selenium-containing barium chalcogenides by the single-beam Z-scan technique. A nanosecond Nd: YLF laser operating at 1.053 μm was used as the radiation source. The experimental data are compared with values obtained from theoretical models. The obtained results demonstrate significant agreement with the predicted ones.