Omnidirectional optical filtering based on two kinds of photonic band gaps with different angle-dependent propertiesFeng Wu, Jiaju Wu, Caifu Fan, Zhiwei Guo, Chunhua Xue, Haitao Jiang, Yong Sun, Yunhui Li and Hong ChenEPL, 129 3 (2020) 34004DOI: https://doi.org/10.1209/0295-5075/129/34004
