Liu Li-Juan, Huang Wen-Bin, Diao Zhi-Hui, Zhang Gui-Yang, Peng Zeng-Hui, Liu Yong-Gang, Xuan Li. Low threshold distributed feedback laser based on scaffolding morphologic and holographic polymer dispersed liquid crystal gratingsJ. Acta Physica Sinica, 2014, 63(19): 194202. DOI: 10.7498/aps.63.194202