Application of graded-index thin film in laser attack and defense equipment

Laser as a weapon used in contemporary warfare has been very common. As an important part of laser weapons, thin film plays an important role in laser attack and defense equipment. The manufacturing technology of graded-index thin film has always been a focus in the field of military science and technology and one of the key technologies to promote the development of laser weapons. This paper summarizes the present domestic situation of the graded-index thin film coating, and specifically introduces the application of graded-index thin film in laser equipment.