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Schematic diagram of experimental setupNew research has revealed advances in light detection and ranging technology, providing unparalleled sensitivity and accuracy in measuring the distance of distant objects.This study was published in the Physical Review Letters and was the result of a collaboration between Professor Yoon Ho Kim's team at POSTECH in South Korea and the Center for Quantum Scienc...
Scientists from the Stanford National Accelerator (SLAC) laboratory of the US Department of Energy have revealed new information about the photoelectric effect using attosecond pulses: the delay time of photoelectric emission is as long as 700 attosecond, far exceeding previous expectations. The latest research challenges existing theoretical models and helps to reveal the interactions between ele...
Recently, Associate Researcher Zhang Junyong from the High Power Laser Physics Joint Laboratory of the Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, together with Professor Zhao Yongpeng's research group from Harbin Institute of Technology and Professor Zhan Qiwen's research group from Shanghai University of Technology, completed the experimental verification of 46....
The femtosecond laser emits ultra short optical pulses with a duration of less than one picosecond, reaching the femtosecond level (1fs=10-15s). The characteristics of femtosecond laser are extremely short pulse width and high peak intensity.Ultra short pulse trains can minimize residual heat, ensure precise material processing, and minimize incidental damage. Its high peak intensity can induce no...
The fully 3D printed electric spray engine is suitable for small satellite in orbit maneuver, and its production cost is only a small part of that of traditional thrusters.Image source: Massachusetts Institute of Technology, USAThe Massachusetts Institute of Technology team recently demonstrated an electric spray engine made entirely of 3D printing technology, which can be propelled by emitting ...