Coherent driving of Tm3+:YAG ions using a complex hyperbolic secant optical fieldF. de Seze, F. Dahes, V. Crozatier, I. Lorgeré, F. Bretenaker and J.-L. Le GouëtEur. Phys. J. D, 33 3 (2005) 343-355DOI: https://doi.org/10.1140/epjd/e2005-00086-8