Self-localization of excitons and nonlinear optical properties of J-aggregates in a periodically modulated thin film |
| |
Authors: | A. A. Zabolotskii |
| |
Affiliation: | (1) Institute of Automation and Electrometry, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090, Russia |
| |
Abstract: | Nonlinear optical properties of dye J-aggregates embedded in a one-dimensional periodic medium are analyzed theoretically and numerically. The effect of strain-induced exciton self-localization in a chain of monomers on nonlinear optical properties of the system is investigated for weakly and highly ordered J-aggregates. It is found that exciton self-localization in a periodic medium enhances light absorption and effective optical susceptibility. Optical bistability thresholds are examined for weakly and strongly excited dye J-aggregate thin films. It is shown that the threshold intensity of incident electromagnetic field is lower by more than an order of magnitude as compared to that for a homogeneous medium. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|