Two-photon absorption (TPA) is a special nonlinear optical effect, widely applied in fluorescence imaging, optical data storage, optical limiting, and lithographic micro-fabrication.

• 摘要强双光子吸收材料在双光子荧光显微、三维光信息存储、光限幅以及聚合物微加工等领域具有诱人的应用前景。