Excited state absorption of pump and laser radiations in NYAB non-linear crystal operating at 1.3 µm for visible laser light generationD. Jaque, J. García Solé, A. Brenier, G. Boulon and Z. D. LuoEur. Phys. J. AP, 10 1 (2000) 29-32DOI: https://doi.org/10.1051/epjap:2000116