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Young Physics Teacher, Zhang Liangliang publishes academic achievements in Physical Review Letters2017-12-12

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    Phys. Rev. Lett. 119, 235001 (2017), with Mr. Zhang Liangliang, Associate Researcher from the Department of Physics as the first author and the CNU as the first author organization was published in the world top journal Physical Review Letters on December 8, 2017. The paper published major findings of Mr. Zhang Liangliang and his team in exciting air plasma to generate terahertz wave in two-color laser field.

    In this research, they found that ionized air in two-color laser field under untraditional frequency ratio will radiate terahertz wave and its polarization direction is controlled by the polarization state of the low-frequency light field in their experiment for the first time. This finding is highly identical with the result of Partical-in-Cell (PIC) algorithm and has proved that the currently widely accepted theory of multi-wave mixing is not so rational in explaining how terahertz waves are radiating from two-color field excited air plasma. This research has witnessed major breakthroughs in both theory and experiment and has undergone registration of patent for invention. Mr. Zhang Liangliang has been working with Mr. Wang Weimin, the Associate Researcher from the Institute of Physics, Chinese Academy of Sciences and received great support from the Major Scientific Instrument and Equipment Development Project of the Ministry of Science and Technology and the Natural Science Foundation of China.