ABSTRACT
This chapter presents the light–matter interactions in Two-dimensional (2D) materials of graphene, transition metal dichalcogenides and black phosphorus. The basic influence factor of the interactions is the electronic band structure of the materials, which can induce a variety of fundamental optical properties. The chapter discusses the destructive interactions in 2D materials triggered by light with high power. The interesting optical properties of 2D semiconductors arise from the electronic structure and dispersion of the electronic states at the 2D limit. The evolution of the electronic band structure with thickness and the correspondingly induced optical property in phosphorene can be monitored by collection of the excitonic emissions using photo-luminescence spectroscopy. The conditions in a semiconductor under excitation of an ultra-fast pulse could be used to simulate the working environment of optoelectronic devices operating upon a dynamic field or a high field.
