2023-10-03 19:24:19
2023-10-04 03:24 United Daily News reporter Zhao Youning/Taipei report The winner of the 2023 Nobel Prize in Physics is Pierre Agostini, a scholar at Ohio State University…
The 2023 Nobel Prize in Physics was awarded to the American scholar Agostini of the Ohio State University, the French-Swedish physicist Lullier, and the scholar Krauz of the Ludwig-Maximilians University in Munich, Germany. In recognition of the contribution of three people to “attosecond physics”. Domestic scholars interpret that this contribution contributes to the understanding of materials science and the development of semiconductor electronic components. It is also the fourth Nobel Prize in the field of short-pulse and ultrafast optics.
The Taiwan Science and Technology Media Center yesterday invited domestic scholars to analyze the importance of this year’s Nobel Prize-winning research in physics. Chen Mingzhang, associate professor of the Department of Electrical Engineering at Tsinghua University, said that the blink of a human eye is ten to the minus cubic second, a nanosecond is ten to the minus nine seconds, a femtosecond is ten to the minus fifteenth second, and an attosecond is ten Negative eighteen seconds.
He said that in the 1980s, the shortest pulses were only femtoseconds. After 2000, nonlinear optics appeared, and until the attosecond was discovered, humans might see how electrons move in the nanometer world.
Jia Shixuan, an assistant professor at Yangming Jiaotong University’s Institute of Medical Optoelectronics, described attoseconds as “shutter”. He said that the shorter the shutter, the more instantaneous the real-time image can be captured. Scientists have always wanted to break through the shutter limit. Until the advent of attoseconds, the behavior of electron movement can be seen. Such pulses are also called “ultrafast optics”. When compared with traditional nanoseconds, The speed is increased, light can be controlled in the attosecond field, and electronic switches are tried to be made.
Professor Luo Zhiwei of the Department of Electronic Physics at Yang-Ming Jiaotong University explained that ultrafast optics are all short pulses. This is the first time that the Chemistry Prize was awarded to femtosecond dynamics in 1999, the Physics Prize in 2005 was awarded to a laser comb, This is the fourth Nobel Prize in this field following the 2018 Physics Prize was awarded to pulse amplification technology. He said that because of the short pulses, there are cameras with fast shutters that can capture the dynamic changes in electrons.
Luo Zhiwei also mentioned that using short-pulse lasers, we can see the interaction between electrons, phonons, and spins. Nowadays, laser technology can be used to turn insulators into metals, which is the interaction between electrons, phonons, and spins. Power, including current industrial applications and the semiconductor world, can move the originally non-conductive insulator to the conductive band under the action of laser, and instantly become a conductor. It can be used to make high-speed transistors, electronic components, or use light sources. To manipulate materials and develop different ways of using them.
Wen Yujie, an assistant researcher at the Institute of Physics, Academia Sinica, said that attoseconds help humans observe the characteristics of electrons in different materials, and also help understand and control the behavior of electrons in materials, including quantum materials and semiconductor industries, which involve electron transfer and shielding. It is a technology with long-term influence that contributes to the development of semiconductor electronic components through its interaction with scattering.
Nobel Nobel Prize
Further reading
1696385291
#Attosecond #broke #shutter #limit #won #fourth #Nobel #Prize #field #ultrafast #optics #Nobel #Prize #announced #Global