%0 Journal Article %T Optical fractal in cryogenic environments based on distributed feedback Bragg photonic crystals %A Zhao, Miaomiao %A Chen, Xiaoling %A Liu, Qianjin %A Liu, Jinrui %A Liu, Jun %A Wang, Yang %J PLoS ONE %V 18 %N 9 %D 2023-09-21 %I Public Library of Science %~ DeepDyve