physics.optics
Second harmonic generation with 48% conversion efficiency from cavity polygon modes in a monocrystalline lithium niobate microdisk resonator
Chao Sun Jielei Ni Chuntao Li Jintian Lin Renhong Gao Jianglin Guan Qian Qiao Qifeng Hou Xiaochao Luo Xinzhi Zheng Lingling Qiao Min Wang Ya Cheng