China News Agency, Nanjing, March 13 (Reporter Yang Yanci) A reporter from China News Agency learned from the Purple Mountain Observatory of the Chinese Academy of Sciences on the 13th that during China's 39th Antarctic scientific expedition, the station took the lead in completing the Antarctic inland terahertz astronomical experiment. Experiments such as observation and communication sending and receiving.
This is the first time that China's self-developed terahertz detection equipment has successfully operated in the extreme environment of the Antarctic inland.
According to researchers, Ice Dome A, where China's Antarctic Kunlun Station is located, is an excellent site for ground-based terahertz astronomical observations, and it is also a place for scientific investigations of great significance.
China's 39th Antarctic scientific expedition team set off from Shanghai to Antarctica in October 2022, and sent an inland team to Kunlun Station and Taishan Station for investigation after a lapse of three years.
Researchers from the Purple Mountain Observatory participated in the Antarctic inland scientific expedition and carried a set of Antarctic terahertz detection experimental system independently developed by China, including a terahertz superconducting receiver, a terahertz signal source and a small high-precision antenna. The core equipment developed.
Researchers have carried out terahertz astronomical test observations and communication transmission and reception demonstration experiments at Kunlun Station and Taishan Station respectively. For the first time, China's self-developed terahertz detection equipment has successfully operated in the extreme environment of the Antarctic inland, and accurately measured the 0.5 The atmospheric transmittance of the THz observation window has further improved the measurement results of the previous terahertz observatory site, and has guiding significance for future terahertz astronomical observations in the Antarctic inland.
This experiment also realized the kilometer-level 0.5THz frequency band terahertz signal transmission and reception experiment in the Antarctic inland area for the first time, laying the foundation for further research and experimental verification of next-generation communication technologies in Antarctica.
The experiment was jointly organized and implemented by the Purple Mountain Observatory of the Chinese Academy of Sciences and the China Polar Research Center.
The related work was supported by the National Natural Science Foundation of China and the Chinese Academy of Sciences, as well as the full cooperation of the 39th Antarctic scientific expedition team of China.
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