ACS Photonics
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2024
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IF 6.5
Xiaoting Wang,Qianxi Yin,Rongrong Xu,Yu Gu,Xianliang Huang,Mulin Li,Teng Ma,Ziyi Chen,Jun Chen,Haibo Zeng
Birefringent crystals have the ability to modulate polarized light, which has important applications in the field of optoelectronics. Waveplates are important devices in polarization optics to modulate the polarization and phase delay of light over a wide band of wavelength. However, conventional designs of half-wave plates and quarter-wave plates involve multiple birefringent crystals, and the fabrication process is complex and costly. Here, we report the discovery of a multiwavelength (532–785 nm) temperature-controlled phase modulator based on Cs4PbBr6/CsPbBr3 perovskite crystals. It is the crystal lattice expansion that is causing the variation of the birefringence factor of Cs4PbBr6/CsPbBr3 through observing crystal optical properties. The transmitted 633 nm light can be temperature-modulated to achieve the switching of optical polarization states between circularly polarized and linearly polarized states, revealing that the same crystal can switch between the functions of half-wave plates and quarter-wave plates. Other wavelengths of transmitted light can also change optical polarization states through temperature control. Given the versatility of halide perovskite-based crystals, Cs4PbBr6/CsPbBr3 crystals offer a promising approach for producing waveplates and other optical devices at a lower cost.
研究领域:
光学
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材料科学
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产品关联
DOI
高影响因子
Journal of Materials Chemistry C
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2019
·Vol. 7
·期 16
·4667-4672
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IF 6.641
Shuxiang Ding,Chunxue Wang,Xiaoyu Shi,Jiawei Zou,Qiuli Cheng,Jiufu Zhu,Zuosen Shi,Zhenzhen Cai,Changming Chen,Zhanchen Cui
A series of acrylate group terminated fluorinated polycarbonates containing 4,4-cyclohexylidenebis phenol (BPZ) (AF-Z-PC MAs) or dodecyl chains (AF-Ali-PC MAs) were synthesized. These polymers were further doped with chromophores and crosslinked under a UV lamp. With these doped polymers as the functional layer, we successfully obtained straight and Y structure waveguides by a direct writing method for electro-optical modulator devices. These cross-linked polymers displayed good thermal stability, low optical loss and a high refractive index. In addition, after polarization, the electrooptic coefficients r33 of the doped films were 10 pm V−1 and 9 pm V−1, measured by the Teng–Man method, respectively. The results showed that the direct writing method was a simple and effective way to fabricate Mach–Zehnder structure waveguides and these new macroacrylate terminated polycarbonates had great potential in the application of electro-optical modulator devices.
研究领域:
材料科学
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光学工程
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产品关联
DOI
高影响因子
Materials Today Chemistry
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2022
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IF 7.613
S. Song,G. Xu,B. Wang,D. Liu,Z. Ren,J. Gu,H. Wei,L. Zhang,J. Zhao,Y. Li
Effective infrared (IR) modulation is crucial for engineered technologies, such as energy-efficient buildings, personal thermal management, multiple electronic instruments, adaptive thermal camouflage and smart thermoregulation. The static control occupies most portion in the past, to explore the materials that could dynamically modulate IR irradiation has emerged as an urgent scientific challenge. Drawing inspiration from squid skin, a dynamic IR modulator (Au-SEBS membrane) consisting of IR-reflective metal layer and IR-transparent elastomer matrix has been developed. Under a simple mechanical strain, the IR optical performance of Au-SEBS membrane including reflectance, transmittance, and absorptance alters, which is attributed to the generating microcracks at the metal layer. The results demonstrate that the reflectance varies from 97% to 37%, whereas 3%–51% for transmittance and 0%–12% for absorptance at the wavelength range of 2.5–25 μm. Additionally, the Au-SEBS membrane exhibits a distinctive thermal-healed ability due to the thermoplastic elastomer characteristic of SEBS copolymer . The material features a simple actuation mechanism, straightforward manipulate, fast response, and robust mechanical properties , which exhibits a promising potential for adaptive thermal camouflage, thermal management, and other related technologies that regulate the IR irradiation.
研究领域:
材料科学
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仿生学
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红外技术
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产品关联
DOI
高影响因子
POLYMER ENGINEERING AND SCIENCE
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2024
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IF 3.2
Long-De Wang,Ling Tong,Jian-Wei Wu,Jie-Wei Rong
Urethane imide anhydride oligomers with terminal groups as anhydride groups were designed and synthesized using second-order nonlinear optical chromophore molecule, bisphenol AF-type diethylidene dianhydride, and toluene diisocyanate as monomers. Polyurethaneimide (PUI) second-order nonlinear optical polymers with the structure of imide and amino ester chain segments were then synthesized by the polycondensation reaction between urethane imide anhydride oligomers and aromatic diamine monomers. The glass transition temperature ( T g ) of PUI reached 186°C, and the 5% heat-loss decomposition temperature was 320°C. The corona-polarized PUI had an electro-optic (EO) coefficient (γ 33 ) of 82 pm/V tested by the reflection method. The loss of light transmission of the polymer waveguide prepared with PUI as electro-optical material was 1.13 dB/cm at 1550 nm. Mach–Zehnder type polymer waveguide electro-optical modulators have been prepared based on the properties of the electro-optic material PUI. The fabricated polymer EO modulators had favorable electro-optic modulation response performance for low-frequency electrical signals. The good modulation characteristics of the manufactured electro-optical modulators proved that the synthesized PUI was a waveguide polymer material with good comprehensive performance. Highlights Electro-optic fluorinated polyurethaneimide was synthesized. Polyurethaneimide as core material, polymer waveguide EO modulators were fabricated. The prepared modulators had good electro-optic modulation performance.
研究领域:
材料科学
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光学工程
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产品关联
DOI
高影响因子
OPTICS AND LASER TECHNOLOGY
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2023
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IF 5
Feifei Guo,Lijuan Chen,Fuan Liu,Tingting Cao,Youxuan Sun,Zeliang Gao,Xutang Tao
Multifunctional composite crystals have received great attention as an effective way to simplify the laser cavity . In this work, a self-Q-switched Raman laser operating at 1178 nm is demonstrated by using a multifunctional composite crystal BaTeW 2 O 9 (BTW). An acousto-optic modulator (AOM) with a diffraction efficiency of 74% is designed and fabricated based on the Raman crystal BTW. A 1064 nm pulsed laser with a maximum single pulse energy of 260.6 μJ corresponding to a pulse width of 42 ns is obtained by inserting the BTW AOM into the laser cavity with Nd: YAG as the laser gain medium. Then an 1178 nm self-Q-switched Raman laser with the maximum single pulse energy of 22.8 μJ corresponding to a pulse width of 10 ns is successfully obtained. This work not only provides a competitive multifunctional composite device that can simplify the Raman laser cavity design but also has guiding significance for the design and development of multifunctional composite crystals.
研究领域:
光学
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材料科学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Macromolecular Science Part A-Pure and Applied Chemistry
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2024
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IF 2.1
Long-De Wang,Ling Tong,Jian-Wei Wu,Jie-Wei Rong,Chao Gao,Lu-Lu Bu
Fluorinated polyurethaneimide (PUI) electro-optic waveguide polymer with polyurethane and polyimide chain segment structures was synthesized by stepwise polymerization using the synthesized amino ester oligomer pu and imide oligomer pi as monomers. Since the main chain structure of the synthesized PUI had the functionality of both polyurethane and polyimide chain segment structures, it combines the excellent thermal and film-forming properties of polyurethanes and polyimides, as well as lower optical transmission loss in the near-infrared wavelength band. The glass transition temperature (Tg) of PUI was 182 °C, and the 5% heat loss decomposition temperature was 325 °C. The PUI had good optical properties with an optical propagation loss of 1.10 dB/cm and an electro-optic (EO) coefficient (γ33) of 86 pm/V at a wavelength of 1550 nm. A Mach-Zehnder interferometric polymer waveguide EO modulator had been designed and fabricated by using the PUI as a waveguide electro-optic core layer. The prepared polymer waveguide EO modulator showed a good electro-optic modulation response at a wavelength of 1550 nm under an applied 1 kHz sinusoidal modulation signal. The results showed that the synthesized PUI met the performance requirements for the preparation of polymer optical waveguide devices and was a polymer electro-optic waveguide material with good overall performance.
研究领域:
高分子科学
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光学材料
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电光学
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波导技术
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聚合物器件制备
✓ 已验证
DOI
高影响因子
ACS Nano
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2023
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IF 17.1
Yangkun Huang,Jinpeng Huang,Wenxiang Yin,Fei Xie,Benjamin Coleman,Yaoyu Cao,Satoshi Aya,Wei Zhu,Zhijie Yang,Lingxiang Jiang
It is an ongoing endeavor in chemistry and materials science to regulate coacervate droplets on a physiologically relevant spatiotemporal scale to ultimately match or even surpass living cells’ precision, complexity, and functionality. Herein, we develop a magnetic strategy orthogonal to the thermal, pH, light, or chemical counterparts that are commonly employed by biotic or artificial systems; its successful implementation thus adds a missing piece to the current arsenal of manipulative methodologies. Specifically, we paramagnetize the otherwise diamagnetic coacervate droplets by cooperatively combining paramagnetic ingredients (including organic radicals, metal ions, and Fe3O4 nanoparticles) and coacervate ingredients to obtain “MagCoa” droplets. A simple model is derived theoretically to account for migration and division of MagCoa droplets in an uneven magnetic field. Experimentally, we produce an array of compartmentalized and monodispersed droplets using microfluidics and magnetically steer them with uniformity and synchronicity. We design and fabricate spatial magnetic modulators to engineer the landscape of a magnetic field that, in turn, directs the MagCoa droplets into predesigned patterns in a reconfigurable fashion. These programmable liquid patterns can be potentially extended to dynamic assembly and information encryption. We envision that the toolbox established here is of generality and multitudes to serve as a practical guide to control droplets magnetically.
研究领域:
化学
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材料科学
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软物质物理
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生物物理学
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胶体科学
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS
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2024
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IF 3.1
Yueyi Zhang,Haihui Ren,Xiao Tang,Qiaorong Liu,Wen Xiao,Zunjian Zhang,Yuan Tian
The formidable challenge posed by the presence of extremely high amounts of compounds and large differences in concentrations in plasma significantly complicates non-targeted metabolomics analyses. In this study, a comprehensive two-dimensional gas chromatography-quadrupole mass spectrometry (GC×GC-qMS) method with a solid-state modulator (SSM) for non-targeted metabolomics in beagle plasma was first established based on a GC-MS method, and the qualitative and quantitative performance of the two platforms were compared. Identification of detected compounds was accomplished utilizing NIST database match scores, retention indices (RIs) and standards. Semi-quantification involved the calculation of peak area ratios to internal standards. Metabolite identification sheets were generated for plasma samples on both analytical platforms, featuring 22 representative metabolites chosen for validating qualitative accuracy, and for conducting comparisons of linearity, accuracy, precision, and sensitivity. The outcomes revealed a threefold increase in the number of identifiable metabolites on the GC×GC-MS platform, with lower limits of quantitation (LLOQs) reduced to 0.5–0.05 times those achieved on the GC-MS platform. Accuracy in quantification for both GC×GC-MS and GC-MS fell within the range of 85–115%, and the vast majority of intra- and inter-day precisions were within the range of 20%. These findings underscore that relative to the conventional GC-MS method, the GC×GC-MS method developed in this study, combined with SSM, exhibits enhanced qualitative capabilities, heightened sensitivity, and comparable accuracy and precision, rendering it more suitable for non-targeted metabolomics analyses.
研究领域:
分析化学
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代谢组学
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药学
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产品关联
DOI
PubMed
高影响因子
EUROPEAN POLYMER JOURNAL
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2022
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IF 5.546
Haili Zhao,Hao Gao,Tao Chen,Linsheng Xie,Yulu Ma,Jin Sha
In the present work, programmable light pattern produced by digital micro-mirror device (DMD) spatial light modulator was employed to initiate the atom transfer radial polymerization (ATRP) for fabricating the patterned polymer brushes on the silicon substrate surface. Results from a series of characterization methods such as optical microscopy, 3D optical surface profiler, and X-ray photoelectron spectroscopy proved the poly (ethylene glycol) methyl acrylate (PEGMA) brushes with complex structures were successfully generated. The thickness of PEGMA brushes could be regulated by adjusting the DMD light modulation parameter including pattern size, gray value and exposure time. The contact angle measurements showed the PEGMA brushes could improve the hydrophilicity property of substrate surface. The antifouling property of the patterned surfaces with different shapes were tested, and the results indicated that the PEGMA brushes could effectively resist the adhesion of bovine serum albumin (BSA) protein, leading to the selective arrangement of protein. The reported method for generating the polymer brush patterns shows great potential for the manipulation of surface property in facilitating a range amount of applications from anti-biofouling coating, interface lubrication to biomimetic and smart surfaces.
研究领域:
材料科学
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高分子化学
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表面科学
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生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
Journal of Macromolecular Science Part B-Physics
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2023
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IF 1.4
Long-De Wang,Ling Tong,Jian-Wei Wu,Jie-Wu Rong,Li Li
Polyurethaneimide prepolymer was synthesized using the synthesized chromophore C containing tricyanofuran, hexafluorodianhydride and phenyl diisocyanate as monomers. Polyimide prepolymers were synthesized using fluorinated aromatic diether dianhydride and fluorinated aromatic diamine as monomers. Polyurethaneimide-polyimide (PUI-FPI) copolymers were then synthesized by a polycondensation reaction of the polyimide and polyurethaneimide prepolymers. The electro-optic (EO) PUI-FPI copolymers had a special segment structure and concentrate the advantages of polyurethaneimide and polyimide. The copolymers exhibited good film-forming properties, high glass transition temperature (Tg =196 °C), and high thermal stability (Td up to 358 °C). The copolymers possessed a high EO coefficient (γ33 =72 pm/V) at the 1550 nm wavelength, good long-term electro-poled orientation stability, and low optical propagation loss (1.2–1.4 dB/cm) at 1550 nm. Mach-Zehnder interferometric electro-optic modulators were designed and fabricated using the synthesized copolymer as the waveguide material. The prepared polymer optical waveguide EO modulators showed a good low-frequency electro-optic modulation response. The results showed that the synthesized polyurethaneimide-polyimide copolymers meeted the performance requirements for the preparation of polymeric optical waveguide devices and were suitable as polymeric electro-optic waveguide materials.
研究领域:
高分子化学
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材料科学
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电光学
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光波导器件
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有机电子学
✓ 已验证
DOI
高影响因子
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