On October 3rd, the 2023 Nobel Prize in Physics was announced, recognizing scientists who have studied attosecond physics, marking the beginning of the attosecond era for humanity.
At present, China's first attosecond laser device, the "Advanced attosecond Laser Facility", is being prepared and built in Dongguan, Guangdong, providing strong impetus for breakthroughs in multiple major basic scientific issues such as high-temperature superconductivity and quantum computing.
Nobel Prize awarded to Asecond Laser
On October 3rd, the 2023 Nobel Prize in Physics was announced.
The award was awarded to Professor Pierre Agostini of Ohio State University in the United States, Professor Ferenc Krausz of the Max Planck Institute for Quantum Optics in Germany, and Professor Anne L'Huillier of the University of Delon in Sweden, in recognition of their developed experimental methods that can generate attosecond light pulses, which are used to study electron dynamics in matter.
What is' A second '? 1 attosecond is a negative 18th second of 10, used to describe the motion of electrons within an atom.
This year's Nobel Prize in Physics research achievement "showcases a method for generating extremely short light pulses, which can be used to measure the rapid process of electron movement or energy change".
A second light pulse is an extremely short flash of light that provides an extremely fast camera "shutter" that can be opened and closed, and can "capture" electrons in a frenzy.
In 2004, the second stripe camera was born, allowing people to smoothly capture the existence of "light".
The emergence of attosecond pulsed laser is considered one of the most important milestones in the history of laser science. It has become an important research tool in many fields such as physics, chemistry, biology, and has been successfully used to measure and control the movement of bound electrons in the inner shell layer. As a result, people's research on the structure of matter has entered the atomic interior from the molecular level.
Assistant Professor Pan Yiming from the School of Material Science and Technology at Shanghai University of Science and Technology stated in an interview with the media that through stripe photography technology, researchers can obtain information on attosecond pulses, the motion of electrons inside matter, and the electric field information driving laser pulses.
We can see 'light', which is the ability of the second, and cannot be replaced by other disciplines.
”Scientists who invented new tools and technologies for this fundamental science have brought humanity into the era of the second.
Preparation for the construction of China's first attosecond laser device in Dongguan
As an important component of the national innovation system, large scientific installations are an important means of promoting original innovation.
At present, China's first advanced attosecond laser facility is currently under construction in Dongguan, Guangdong.
In the future, this facility will be built as the most advanced international electronic dynamics research facility with the most comprehensive coverage of frequency bands, performance, and application terminals, with a prominent feature of attosecond time resolution, and a comprehensive and ultra fast electronic dynamics research facility.
At present, attosecond light pulses have become the most powerful tool for studying physical laws at the subatomic scale.
By using this technology, transient phenomena such as lightning generation and drug dissolution can be observed.
At the same time, the development of attosecond pulse laser technology has led to many significant breakthroughs in scientific and technological research in fields such as X-ray, free electron laser, controllable high-temperature superconductivity, ultra-high resolution imaging, and electronic information processing.
Dongguan, Guangdong has a layout for this.
On April 25th of this year, the Ace Science Center was officially unveiled in Songshan Lake, Dongguan, and will promote the construction of advanced Ace laser facilities, a major scientific device, in the future.
It is reported that the advanced attosecond laser facility was jointly built by the Institute of Physics of the Chinese Academy of Sciences and the Institute of Western Optics of the Chinese Academy of Sciences, with the participation of the Songshan Lake Materials Laboratory.
Through a high starting point design, the facility is constructed with a multi beam line station with high repetition rate, high photon energy, high throughput, and extremely short pulse width, providing ultra fast coherent radiation with a minimum pulse width of less than 60as and a maximum photon energy of up to 500eV. It is also equipped with corresponding application research platforms, and after completion, the comprehensive indicators are expected to achieve international leadership.
Feng Ji, Secretary of the Party Committee and Deputy Director of the Songshan Lake Materials Laboratory, stated that after the completion of the facility, it will be able to comprehensively reveal the motion patterns of inner shell electrons, valence electrons, free electrons, and other electronic forms in nature from both the attosecond time scale and the nanospace scale, as well as other mechanisms of coupling with electrons, to achieve tracking, measurement, and control of ultrafast electron motion, including high-temperature superconductivity The breakthroughs in multiple major fundamental scientific issues such as quantum computing provide strong impetus.
On April 25 this year, the A-S Science Center jointly built by the Institute of Physics of the Chinese Academy of Sciences and the Songshan Lake Materials Laboratory was officially inaugurated in Dongguan.
The center will promote the construction of advanced attosecond laser facilities, jointly carry out and strengthen attosecond scientific research.
Source: Dongguan Daily
