Development of thin film’s weak absorption testing set-up

According to the experiment of validation and optimization, the design of thin film's weak absorption testing set-up is finished for quick development of high energy laser, which can achieve the aims of high testing precision, large aperture, various wavelengths, various angles and reflective measurement. From the measurement results of system function and optics weak absorption, it can be judged that the system's precision is 10-6 .