Presentation Information
[17p-M_110-2]Development of gas optics for vacuum applications using high-pressure ozone
〇Yurina Michine1, Hitoki Yoneda1 (1.ILS, UEC)
Keywords:
optics,damage,gas
We report on the development of high-damage-threshold "gas optics" using neutral gas as a medium for vacuum applications. By applying interference irradiation of a UV pulsed laser to an ozone mixture, density modulations consisting of acoustic and entropy waves are induced, functioning as a transient transmission volume diffraction grating. To suppress gas diffusion in vacuum, we implemented three methods: (1) high-pressure ozone injection via a high-speed pulsed valve, (2) spatial confinement using a specialized housing, and (3) nanosecond-scale temporal control. This approach successfully maintains the gas density required for element formation even in vacuum environments.