Modified Sagnac imaging spectropolarimeter for full linear Stokes parameters Peng Gao, Xiaochen Hu, Guanghai Guo, Yongqiang Kang, Jingjing Ai and Xia Wang EPL, 124 5 (2018) 54003 Published online: 02 January 2019 DOI: 10.1209/0295-5075/124/54003