Development of Wide-Angle Depolarizing Reflector at 1064 nm.

Optical coherence tomography is a new promising chromatographic imaging technique with the advantages of noncontact and high resolution without damage, which is widely used in the field of biological tissue detection and imaging. As an important optical element in the system, the wide-angle depolarizing reflector plays a key role in the accurate acquisition of optical signals. TaO and SiO are selected as the coating materials for the technical parameter requirements of the reflector in the system.

Self-Raman 1176 nm Laser Generation from Nd:YVO Crystal by Resonator Cavity Coating.

Crystal coating is an important process in laser crystal applications. According to the crystal characteristics of neodymium-doped yttrium vanadate (Nd:YVO), its intrinsic parameters, and optical film design theory, TaO and SiO were selected separately as high and low refractive index materials. The optical properties and surface roughness of the films were characterized by OptiLayer and Zygo interferometers, and the effects of ion source bias on refractive index and surface roughness were investigated so that the optimal ion source parameters were determined.