Deep ultraviolet all-solid-state laser sources refer to solid-state lasers with output wavelengths below 200nm. Compared with incoherent light sources such as synchrotron radiation and gas discharge, they have high photon energy, high spectral resolution, strong photon flux and high density, and low repetition frequency. Features such as high repetition frequency and multiple operation modes in nanoseconds, picoseconds and femtoseconds. For a long time, the deep ultraviolet band has been lacking such practical and precise laser pointer sources, which has restricted the development of scientific instruments and cutting-edge research in the deep ultraviolet band.
Researching deep ultraviolet nonlinear optical crystal KBBF for more than ten years, with the support of special funds from the Ministry of Finance, breakthroughs in technologies such as quaternary phase diagram and local spontaneous nucleation growth have led to the growth of large-sized crystals internationally and invented The special use technology of this crystal-prism coupling device (has obtained invention patents in China, the United States, and Japan), has broken through the technology of wavelength nonlinear control and beam pointing precision compensation, and successfully developed 8 internationally pioneering deep ultraviolet all-solid-state laser sources. Become the only country in the world that can master sophisticated and practical deep ultraviolet laser technology.
The successful development of the deep-ultraviolet all-solid-state laser source has attracted widespread attention. Dozens of well-known foreign universities and scientific research institutes have put forward purchase or cooperation requirements to the Chinese Academy of Sciences in order to develop independent scientific instruments and equipment and promote cutting-edge research in the deep-ultraviolet field. For development, the Chinese Academy of Sciences temporarily prohibits the export of related technologies to foreign countries, and organizes superior forces within the institute.
Successfully developed deep-ultraviolet Raman spectrometer, deep-ultraviolet photoelectron emission microscope, deep-ultraviolet laser photochemical reaction instrument, deep-ultraviolet laser photoluminescence spectrometer, deep-ultraviolet laser spin-resolved angle-resolved photoelectron spectrometer, deep-ultraviolet laser in-situ space-time resolution tunnel Electronic spectrometer, deep ultraviolet laser angle-resolved photoelectron spectrometer based on time-of-flight energy analyzer, and deep ultraviolet laser photoelectron spectrometer with adjustable photon energy are 8 internationally pioneered deep ultraviolet cutting-edge equipment.
Important and advanced achievements have been made in cutting-edge scientific research fields such as high-temperature superconductivity, catalytic reactions, graphene, topological insulators, and ultra-wide bandgap semiconductors. Nearly a hundred papers have been published in top international journals such as Nature and sub-journals. Promoting scientific and technological progress in the relevant scientific instrument industry is expected to create a new technological frontier. The Ministry of Finance and the Chinese Academy of Sciences have carried out a large number of innovations in the management of original major scientific research equipment development projects with a wide range of disciplines, a large span, a strong exploratory and engineering capabilities. At present, they have formed a deep ultraviolet “material-device-equipment-science” “Research” completes the innovation chain and has become a successful example of independent research and development of high-precision and sophisticated instruments.
With the support of the Ministry of Finance and the Ministry of Science and Technology, the Chinese Academy of Sciences is carrying out the deep-ultraviolet solid-state laser source frontier equipment development (Phase II) project and special research on the development of major national scientific instruments and equipment, from the fields of physics, chemistry, and materials to the fields of information, life resources and environmental protection. Expand and carry out engineering research of deep ultraviolet green laser pointer light emission electron microscope at the same time, continue to lead the development of deep ultraviolet laser scientific instruments, maintain and develop the international leading position in the deep ultraviolet field, and promote the development of frontier research of the subject.