Effect of Sectional Polymerization Process on Tunable Twist Structure Liquid Crystal Filters
Source abstract
Abstract
The effect of sectional polymerization process on tunable filters with cholesteric liquid crystal (CLC) and blue phase liquid crystal (BPLC) is demonstrated. The bandwidths of the polymer-stabilized cholesteric liquid crystal (PSCLC) and polymer-stabilized blue phase liquid crystal (PSBPLC) filters can be broadened by the holding treatment without distortion. The reflection bandwidth of the CLC filter can be broadened from 120 nm to 220 nm, and that of the BPLC filter can be broadened from 45 nm to 140 nm. Meanwhile, the intensity of reflection can be retained very well. The central wavelength of polymer-stabilized CLC filter can be thermally tuned from 1614 nm to 1460 nm with a stable wide bandwidth. The tunable C-band CLC filter and BPLC filter show great potential application in multi- and hyper-spectral systems and wide-band color filters.
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Research context
OpenAlex topics: Liquid Crystal Research Advancements · Ocular Surface and Contact Lens · Photonic Crystals and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
Funding
National Natural Science Foundation of China
References (37)
Show source-provided references
1. Electrically switchable mirrors and optical components made from liquid-crystal gels10.1038/33110 ↗
2. Switchable mirrors of chiral liquid crystal gels10.1080/02678292.1999.11509448 ↗
3. Narrow linewidth and temperature insensitive blue phase liquid crystal films
4. Resonant interaction of light with a stack of alternating layers of a cholesteric liquid crystal and an isotropic medium10.1103/PhysRevE.92.062501 ↗
5. Polarization-independent bandwidth-variable tunable optical filter based on cholesteric liquid crystals10.7567/JJAP.53.072601 ↗
6. Widely tunable optical filter with variable bandwidth based on the thermal effect on cholesteric liquid crystals10.1364/AO.51.005780 ↗
7. Optical filter with tunable wavelength and bandwidth based on cholesteric liquid crystals10.1364/OL.36.004563 ↗
8. Spectral and polarization structure of field-induced photonic bands in cholesteric liquid crystals10.1103/PhysRevE.92.032502 ↗
9. Theoretical study of bandwidth control of full-pitch band of a ferroelectric liquid crystal by varying incident angle and electric field10.7567/APEX.10.081601 ↗
10. Analog smectic c * ferroelectric liquid crystal fabry-perot optical tunable filter10.1109/68.473481 ↗
11. Reversible and fast shift in reflection band of a cubic blue phase in a vertical electric field10.1063/1.3658960 ↗
12. Bistable cholesteric-blue phase liquid crystal using thermal hysteresis10.1016/j.optmat.2011.08.015 ↗
13. Bragg reflection band width and optical rotatory dispersion of cubic blue-phase liquid crystals10.1103/PhysRevE.94.042703 ↗
14. The influence of orienting layers on blue phase liquid crystals in rectangular geometries10.4302/plp.v10i4.868 ↗
15. Influence of cylindrical geometry and alignment layers on the growth process and selective reflection of blue phase domains10.1016/j.optmat.2017.10.024 ↗
16. Broadband reflection characteristic of polymer-stabilised cholesteric liquid crystal with pitch gradient induced by a hydrogen bond10.1080/02678292.2010.501910 ↗
17. Optical filter with tunable wavelength and bandwidth based on phototunable cholesteric liquid crystals10.1364/AO.53.001658 ↗
18. A review of the fabrication of photonic band gap materials based on cholesteric liquid crystals10.1016/j.reactfunctpolym.2016.04.012 ↗
19. Grzelczyk, D., and Awrejcewicz, J. (2019). Calculation of reflectance and transmittance of optical birefringent networks based on cholesteric liquid crystals. Lat. Am. J. Solids Struct., 16.10.1590/1679-78255000 ↗
20. The temperature range and optical properties of the liquid crystalline blue phase in inverse opal structures10.1039/C8TC02712A ↗
21. Optically tuneable blue phase photonic band gaps10.1063/1.3368119 ↗
22. Photonic band structure and transmission analysis of cholesteric blue phase ii: Electrostriction in the [100] direction10.1364/OE.22.003766 ↗
23. Bandwidth broadening induced by ionic interactions in polymer stabilized cholesteric liquid crystals10.1364/OME.4.001465 ↗
24. Electrically tunable infrared reflector with adjustable bandwidth broadening up to 1100 nm10.1039/C6TA01647B ↗
25. Spatially tunable photonic bandgap of wide spectral range and lasing emission based on a blue phase wedge cell10.1364/OE.22.029479 ↗
26. Electrically induced bandwidth broadening in polymer stabilized cholesteric liquid crystals10.1063/1.3632068 ↗
27. Cholesteric liquid crystals with a broad light reflection band10.1002/adma.201202913 ↗
28. Photoinduced broadening of cholesteric liquid crystal reflectors10.1063/1.3369437 ↗
29. Thermally tunable light filter composed of cholesteric liquid crystals with different temperature dependence. Solar Energy10.1016/j.solmat.2016.05.039 ↗
30. Effect of crosslinking on the photonic bandgap in deformable cholesteric elastomers10.1364/OE.16.005320 ↗
31. Wide-band spatially tunable photonic bandgap in visible spectral range and laser based on a polymer stabilized blue phase10.1038/srep30407 ↗
32. Control homogeneous alignment of chiral nematic liquid crystal with smectic-like short-range order by thermal treatment10.1016/j.colsurfa.2012.05.049 ↗
33. On the effect of alignment layers on blue phase liquid crystals10.1063/1.4914888 ↗
34. Effects of cell structure on the reflection of cholesteric liquid crystal displays10.1063/1.366918 ↗
35. Tailoring monodomain in blue phase liquid crystal by surface pinning effect10.1143/APEX.5.051701 ↗
36. A theory for the christiansen filter10.1364/AO.7.000861 ↗
37. Influence of annealing on molecular orientation of rubbed polyimide film observed by reflection ellipsometry10.1143/JJAP.36.6953 ↗