Non-linear optical response of interacting one-dimensional Frenkel excitons in highly oriented J-aggregates

摘要

The non-linear optical response of interacting one-dimensional Frenkel excitons in highly oriented J-aggregates is investigated theoretically in terms of the excitonic two-level system model and theory of Orr and Ward. The linear absorption, electroabsorption, third-harmonic generation and two-photon absorption of interacting one-dimensional Frenkel excitons are calculated. The numerical results show a reasonable consistency with the experimental results in PIC-Br J-aggregates.