Calorimetric measurement of two-photon absorption and color-center formation in ultraviolet-window materials
- Cite this article as:
- Eva, E. & Mann, K. Appl. Phys. A (1996) 62: 143. doi:10.1007/BF01575711
- 145 Downloads
Intensity-dependent absorption of 25 ns excimer laser pulses in common UV-window materials was investigated. By employing a calorimetric technique which provides greatly enhanced sensitivity compared to transmissive measurements, two-photon absorption coefficients were determined at intensities of 2–80 MW/cm2 and found to be in good agreement with previous measurements at 10–100 GW/cm2. Also, color-center formation in fused silica was observed. It was possible to quantify transient and cumulative effects as a function of intensity.