D-π-A chromophores with a quinoxaline core in the π-bridge and bulky aryl groups in the acceptor: Synthesis, properties, and femtosecond nonlinear optical activity of the chromophore/PMMA guest-host materials

А. А. Калинин, Liliya N. Islamova, A. G. Shmelev, Guzel M. Fazleeva, Olga D. Fominykh, Yulia B. Dudkina, Tatyana A. Vakhonina, Alina I. Levitskaya, Anastasiya V. Sharipova, Anvar S. Mukhtarov, Ayrat R. Khamatgalimov, Irek R. Nizameev, Yulia H. Budnikova, Marina Yu. Balakina