Paper 13100-75
Paper 13100-75
Research on the Application of Dielectric Films in Large Aperture Astronomical Telescopes
19 June 2024 • 14:20 - 14:35 Japan Standard Time | Room G214, North - 2F
Abstract
The dielectric film is an important component of the reflective film. With the increasing requirements for the spectral range, reflectivity, environmental stability, and other performance of reflective films in large-aperture telescopes, the role of dielectric films in large-aperture mirrors is becoming increasingly crucial. With the development of optical coating technology, reflective films with different structures have been developed to meet the needs of different telescopes, and dielectric films play a crucial role in them. This article studies the application direction and key technologies of dielectric films in large-aperture astronomical telescopes, based on the coating situation of primary mirrors such as LAMOST and the Chinese National Astronomical Observatory's 2.5-meter telescope.
Presenter
Nanjing Institute of Astronomical Optics & Technology (China)
Wang Jinfeng is a researcher, a doctor advisor, and a member of the academic committee of the research institute. Currently, he is mainly engaged in the research of large-aperture optical thin film technology and special thin film processes. His research direction focuses on the technological research of optical thin films and special thin films in large optical telescopes and Antarctic astronomical telescopes. He is responsible for two National Natural Science Foundation of China projects, of which one has been completed. He has participated in and completed the national major scientific and technological project, "Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST)", and was in charge of the optical coating work of the optical system.