He is a world-renowned member of the Fifth Academy of Sciences
He recreates the sun in the laboratory to recreate the "great universe"
It has created a new field of laboratory astrophysics in China
He served as president of Shanghai Jiao Tong University for ten years
Affectionately known as "Jacko" by his classmates
He's chasing lasers
Illuminate the future with lasers
Zhang Jie
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Morning of September 12, 2021
Professor Jie Zhang is sharing the progress of experimental research with colleagues
Received a "mysterious" phone call
Perhaps Zhang Jie at this time did not realize it
It was this phone call
It opened his wonderful bond with the Future Science Prize
It also allowed him and his team to strive for more than 30 years of scientific research masterpieces
Once again, it is known and understood
Jie Zhang won the 2021 Future Science Award - Material Science Award for his contribution to the rapid fire research of ultra-high-space-resolution high-energy electron diffraction imaging and laser nuclear fusion by regulating the interaction between lasers and matter to produce a precise and controllable ultra-short pulse fast electron beam, and applying it to achieve ultra-high space-time resolution high-energy electron diffraction imaging and laser nuclear fusion.
Since J. J. Thomson discovered cathode rays for more than a century, the role of electron beams in the development of science and technology has become increasingly prominent. The precise manipulation and detection of electron beams allows humans to directly observe the microstructure of matter with electron microscopes; high-energy electron beams can also make it possible to accurately shape microstructures and innovate changes in material properties; relativistic electron beams can also become a source of rapid fire energy in laser nuclear fusion.
Academician Zhang Jie is one of the pioneers of using a strong laser beam to interact with matter to effectively generate a high-intensity fast electron beam (100 keV to 10 MeV) with controlled direction and energy. Since the 1990s, the joint research team of the Institute of Physics of the Chinese Academy of Sciences and Shanghai Jiao Tong University led by Academician Zhang Jie has made a series of breakthroughs in the generation and application of fast electron beams, including efficiently generating ultra-short pulse fast electron beams far from Maxwell's distribution, realizing the precise regulation of the emission direction and energy of fast electron beams, and realizing the guidance and focus of surface autogenetic electromagnetic fields on fast electron beams.
The precisely controllable ultra-short pulse fast electron beams they produced have been importantly applied in a series of scientific explorations. For example, it took more than 5 years to develop an ultrashort pulsed meereelectron volt electron diffraction and imaging device, which achieved the spatial resolution capability of the sub-estrogen (1 angstrom is equal to 10 billionths of a meter) and increased the time resolution capability to a record 50 femtoseconds (1 femtosecond equals 100 billionths of a second). Using this device, they and their collaborators successfully realized the ultrafast light field regulation of the dimensions of quantum materials, observed transient photogenetic states of matter, and realized the observation of new phase transitions induced by light and important physical and chemical transient processes such as single-molecule imaging.
The study of ultra-short pulse fast electron beams originated from the need to study the fast fire scheme in laser nuclear fusion. As one of the options for humanity to obtain the ultimate energy source, laser nuclear fusion consists of two stages: fuel compression and heating. Since the compression process and the ignition process can be optimized independently, the fast-fire solution can save drive energy and reduce instability. The role of the precisely controlled ultra-short pulse fast electron beam is to quickly heat the fuel compressed to the fusion density to the fusion temperature, and their research has made an important contribution to the in-depth understanding of the physical process of fast fire.
--Future Science Forum