Jiefu Zhu, Tingting Ding, Xuerui Sun, Fengchao Ni, Hao Li, Shijie Liu, Yuanlin Zheng, Xianfeng Chen. Broadband second-harmonic generation in thin-film lithium niobate microdisk via cyclic quasi-phase matching[J]. Chinese Optics Letters, 2024, 22(3): 031903