| Title | Unconventional High-Performance Laser Protection System Based on Dichroic Dye-Doped Cholesteric Liquid Crystals |
| Authors | Zhang, Wanshu Zhang, Lanying Liang, Xiao Zhou, Le Xiao, Jiumei Yu, Li Li, Fasheng Cao, Hui Li, Kexuan Yang, Zhou Yang, Huai |
| Affiliation | Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Dept Mat Phys & Chem, Beijing 100083, Peoples R China. Peking Univ, Coll Engn, Dept Mat Sci & Engn, Beijing 100871, Peoples R China. Peking Univ, Minist Educ, Key Lab Polymer Chem & Phys, Beijing 100871, Peoples R China. Dalian Med Univ, Dept Chem, Dalian 116044, Peoples R China. Xijing Univ, Dept Appl Stat & Sci, Xian 710123, Peoples R China. Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Dept Mat Phys & Chem, Beijing 100083, Peoples R China. Yang, H (reprint author), Peking Univ, Coll Engn, Dept Mat Sci & Engn, Beijing 100871, Peoples R China. Yang, H (reprint author), Peking Univ, Minist Educ, Key Lab Polymer Chem & Phys, Beijing 100871, Peoples R China. Li, KX (reprint author), Xijing Univ, Dept Appl Stat & Sci, Xian 710123, Peoples R China. |
| Keywords | REFLECTIVE POLARIZERS SELECTIVE REFLECTION UV STABILITY FILTER LIGHT FABRICATION COMPOSITES RADIATION BANDWIDTH DESIGN |
| Issue Date | 2017 |
| Publisher | SCIENTIFIC REPORTS |
| Citation | SCIENTIFIC REPORTS.2017,7. |
| Abstract | High-performance and cost-effective laser protection system is of crucial importance for the rapid advance of lasers in military and civilian fields leading to severe damages of human eyes and sensitive optical devices. However, it is crucially hindered by the angle-dependent protective effect and the complex preparation process. Here we demonstrate that angle-independence, good processibility, wavelength tunability, high optical density and good visibility can be effectuated simultaneously, by embedding dichroic anthraquinone dyes in a cholesteric liquid crystal matrix. More significantly, unconventional two-dimensional parabolic protection behavior is reported for the first time that in stark contrast to the existing protection systems, the overall parabolic protection behavior enables protective effect to increase with incident angles, hence providing omnibearing high-performance protection. The protective effect is controllable by dye concentration, LC cell thickness and CLC reflection efficiency, and the system can be made flexible enabling applications in flexible and even wearable protection devices. This research creates a promising avenue for the high-performance and cost-effective laser protection, and may foster the development of optical applications such as solar concentrators, car explosion-proof membrane, smart windows and polarizers. |
| URI | http://hdl.handle.net/20.500.11897/475043 |
| ISSN | 2045-2322 |
| DOI | 10.1038/srep42955 |
| Indexed | SCI(E) |
| Appears in Collections: | 工学院 高分子化学与物理教育部重点实验室 |
