In the framework of a new physical theory — quantum–classical mechanics, on the basis of a dynamic electron-nuclear-reorganization resonance and the law of conservation of energy, an explanation is given for the strong detuning of the resonance and the associated significant parasitic transformation of the shape of the resonant optical absorption band as a result of the transition from linear to nonlinear, two-photon absorption in polymethine dyes in solutions. Based on this explanation and model band shapes of the theoretical fit to the experimental optical bands (Hales et al. (2010)), the conditions for reconstructing the resonance shape of the band for two-photon absorption and its redshift are predicted.

在新的物理理论（量子经典力学）的框架下，基于动态电子-核-重组共振和能量守恒定律，给出了共振的强烈失谐及其相关的显着寄生的解释。溶液中聚次甲基染料从线性到非线性，双光子吸收的跃迁导致共振光吸收带的形状发生变化。基于这种解释和理论上适合实验光学波段的模型波段形状（Hales et al。（2010）），可以预测为双光子吸收重建波段共振形状及其红移的条件。