| Title | Polarization Selectivity of the Thin-Metal-Film Plasmon-Assisted Fiber-Optic Polarizer |
| Authors | Wang, Xinyue Lin, Jintong Sun, Wen Tan, Zhongwei Liu, Rui Wang, Ziyu |
| Affiliation | China Agr Univ, Coll Informat & Elect Engn, Beijing 100083, Peoples R China Peking Univ, Dept Elect, State Key Lab Adv Opt Commun Syst & Networks, Beijing 100871, Peoples R China Beijing Univ Posts & Telecommun, Inst Informat Photon & Opt Commun, State Key Lab Informat Photon & Opt Commun, Beijing 100876, Peoples R China Hong Kong Polytech Univ, Dept Elect & Informat Engn, Photon Res Ctr, Hung Hom, Hong Kong 999077, Peoples R China |
| Keywords | FABRICATION RESONANCE |
| Issue Date | 15-Jul-2020 |
| Publisher | ACS APPLIED MATERIALS & INTERFACES |
| Abstract | The interaction between light and metallic nano-structures leads to many impressive achievements and has a wide range of applications. The thin-metal-film plasmon-assisted fiber-optic polarizer is one of the essential applications. However, the polarization mechanism and the transmitted polarization of the plasmon-assisted polarizer have given rise to controversy over the past decade. Which of the polarizations is preferentially transmitted through the polarizer? The transverse electric polarization or the transverse magnetic polarization? Here, special emphasis is placed upon the polarization mechanism and the transmitted polarization of thin-metal-film plasmon-assisted fiber polarizers. We first investigate the polarization mechanism of the polarizers theoretically and numerically. Furthermore, a novel approach is proposed to demonstrate the transmitted polarization in the plasmon-assisted fiber polarizers experimentally. We demonstrate that the polarization mechanism is based on the polarization selective absorption of the metallic material, and the transverse electric polarization is the only transmitted polarization of the metallic plasmon-assisted polarizer. Moreover, the plasmon-assisted polarizer can offer a high polarization extinction ratio (33.1 dB) and a low insertion loss (1.1 dB) at room temperature and have excellent temperature stability in the range of -48 to 82 degrees C. Experimental results agree well with our theoretical and numerical analyses. The findings clarify the confusion about the polarization mechanism and the transmitted polarization of metallic plasmon-assisted fiber polarizers over the past decade, providing new ground for the exploration of polarization-sensitive optical systems, with good potential applications in the fields of optical sensors, plasmonic lasers, coherent optical communications, and biosensor systems. |
| URI | http://hdl.handle.net/20.500.11897/590472 |
| ISSN | 1944-8244 |
| DOI | 10.1021/acsami.0c08274 |
| Indexed | SCI(E) |
| Appears in Collections: | 信息科学技术学院 区域光纤通信网与新型光通信系统国家重点实验室 |
