Equivalent temperature of nonlinear-optical crystals interacting with laser radiationO. A. Ryabushkin, D. V. Myasnikov, A. V. Konyashkin and V. A. TyrtyshnyyJ. Eur. Opt. Soc.-Rapid Publ., 6 (2011) 11032DOI: https://doi.org/10.2971/jeos.2011.11032