%A Feng CHEN %T Laser-written three dimensional nonlinear photonic crystals %0 Journal Article %D 2019 %J Front. Optoelectron. %J Frontiers of Optoelectronics %@ 2095-2759 %R 10.1007/s12200-019-0982-6 %P 342-343 %V 12 %N 4 %U {https://journal.hep.com.cn/foe/EN/10.1007/s12200-019-0982-6 %8 2019-12-15 %X