Analytical, experimental and numerical results concerning the influence of intramode and Fermi relaxation on multiple-pass, nanosecond-pulse energy extraction are presented. Multiple-pass energy extraction experiments show satisfactory agreement with the analytical and numerical calculations which predict a significant increase in extracted energy. In three passes, an amount of 9.7 J/l was extracted at an efficiency of 4.3%, These values are taken with respect to the volume of the beam inside the amplifier. In a single pass only 3.5 J/l was extracted.
|Journal||Applied physics B: Photophysics and laser chemistry|
|Publication status||Published - 1987|
Rooth, R. A., van der Pol, J. A., & Haselhoff, E. H. (1987). Intramode and Fermi relaxation in CO2, their influence on multiple-pass, short-pulse energy extraction. Applied physics B: Photophysics and laser chemistry, 42(2), 103-110. https://doi.org/10.1007/BF00694818