Nonlinear optical response of a novel polydiacetylene poly(1,4 bis(3-quinolyl)-1,3 butadyne): Role of exciton-phonon interactionB. P. Singh, A. V. V. Nampoothiri, T. Kundu, P. N. Puntambekar, D. Saha, A. Dhanabalan and S. S. TalwarEurophys. Lett., 45 4 (1999) 456-462DOI: https://doi.org/10.1209/epl/i1999-00188-3