文献类型：期刊文献

英文题名：Light-activated film diffractive optical elements enable diversified optical field modulation

作者：Shen, Ning[1,2];Hu, Honglong[1,3];Wang, Zhaoyi[1];Zhan, Yuxing[1,2];Yuan, Conglong[1,3];Zheng, Zhigang[1,2]

机构：[1]East China Univ Sci & Technol, Sch Phys, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China;[3]East China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China

年份：2025

卷号：23

期号：1

外文期刊名：CHINESE OPTICS LETTERS

收录：;EI(收录号：20255119733080);WOS:【SCI-EXPANDED(收录号:WOS:001612177500001)】；

基金：This work was supported by the National Key Research and Development Program of China (No. 2022YFA1203700) , the National Natural Science Foundation of China (Nos. 62275081, 62035008, and 22305079) , the Innovation Program of Shanghai Municipal Education Commission, Scientific Committee of Shanghai (No. 2021-01-07-00-02-E00107) , the " Shuguang Program " of Shanghai Education Development Foundation, the Shanghai Municipal Education Commission (No. 21SG29) , the Shanghai Sailing Program (No. 23YF1409000) , the Fellowship of China National Postdoctoral Program for Innovative Talents (No. BX20230125) , and the Postdoctoral Fellowship Program of CPSF (No. GZB20240218) .r Fellowship of China National Postdoctoral Program for Innovative Talents (No. BX20230125) , and the Postdoctoral Fellowship Program of CPSF (No. GZB20240218) .

语种：英文

外文关键词：diffractive optical elements; liquid crystal polymer; light-activated film; optical field modulation

摘要：We propose a promising method to develop flexible, compact, and tunable light-activated film diffractive optical elements (FDOEs) with exceptional diffraction efficiency, by integrating liquid crystal (LC) geometric phase-based diffractive optical elements (DOEs) with a specifically designed light-activated LC polymer (LCP) film. Arbitrary film bending induced by UV/Vis irradiation is realized through precise mesogens arrangement within the LCP film, enabling 1D and 2D beam steering, as well as dynamic and reversible switching between structured and Gaussian lights after cooperating with the DOE design. Furthermore, remarkable fatigue resistance, solvent resistance, and thermal stability are demonstrated, providing a solid material platform for advanced optical applications.