Xie Jing, Wang Li, Liu Chong, Zhang Yan-Li, Liu Qiang, Wang Tao, Chai Zhi-Hao, Xia Zhi-Qiang, Yang Lin, Zhang Pan-Zheng, Zhu Bao-Qiang. Improvement of fundamental frequency performance of SGII-UP laser facilityJ. Acta Physica Sinica, 2023, 72(19): 194202. DOI: 10.7498/aps.72.20230643