Laser & Photonics Reviews
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2025
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IF 10
Wenjie Yang,Chenglin Zheng,Jinghui Li,Yuchen Yue,Xiuhong Li,Lei Shi,Jingxia Wang,Lei Jiang
Blue-phase liquid crystals (BPLCs) possess unique 3D periodic chiral structures and extraordinary optical manipulation capabilities, demonstrating considerable potential in flexible displays, high-security encryption, and intelligent sensors. Despite lattice deformations of BPLCs widely exist in various applications, there remains a challenge to understanding the quantitative relationship between different deformation modes and resulting 3D diffractive optics. Herein, a universal simulation strategy is proposed based on spatial geometry modeling to enable real-time computation of dynamic optical responses in BPLCs. This framework systematically interprets and predicts the optical characteristics under both symmetric lattice deformations (governed by chiral dopant concentration) and asymmetric lattice deformations (induced by phase separation or component dispersion). Differentiated nonlinear optical effects are revealed for these deformations in Kossel diffraction analysis. Furthermore, anisotropic modulation of surface/sectional structural colors (photonic bandgaps) and angle-dependent control over the full spatial light field is demonstrated by tailoring interplanar spacing and facet orientation within the lattice symmetry constraints. This study establishes a theoretical foundation for designing next-generation BPLC-based photonic devices, including holographic displays, all-optical switches, integrated waveguides, and 3D lasing systems.
研究领域:
材料科学
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光学工程
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物理学
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
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2025
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IF 19
Jingang Wang,Jianchen Zheng,Chengzhi Zhang,Ya Duan,Yuzhao Zhang,Hongji Guo,Ye Qiu,Xiaoduo Wang,Lianqing Liu,Haibo Yu
Soft microrobots exhibit distinct advantages in biomedical applications, with their exceptional maneuverability in confined spaces and environmental adaptability offering innovative solutions for targeted theranostics. However, current systems are inherently constrained by the physical separation of sensing and actuation modules, leading to inadequate integration and operational efficiency that hinder practical implementation. To overcome this challenge, a micro-nano 4D printing design paradigm is proposed. Through spatial programming of multi-responsive materials and biomimetic microstructural engineering, a microrobotic system is fabricated with synergistic perception-actuation capabilities. By integrating gradient magnetic field-responsive composites and pH-sensitive hydrogels, a 150-µm-scale biomimetic fish-shaped microrobot is developed, innovatively integrating three functionalities: magnetic-actuation, pH-triggered joint actuation, and diffractive optical sensing. Specifically, its tail joint enables adaptive modulation of doxorubicin release kinetics via pH-mediated mechanical deformation, while the head-mounted diffractive spectral sensor provides dynamic optical feedback of pathological microenvironment pH (5.0–6.5). Proof-of-concept experiments demonstrate the system's precise drug release control and environmental monitoring capabilities in gastric cancer cell therapy. This work provides a 4D printing design approach for next-generation intelligent therapeutic microrobots capable of environmental perception, intelligent response, and precise execution.
研究领域:
生物医学工程
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纳米医学
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肿瘤治疗学
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智能材料
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转化医学
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微纳机器人
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药物控释
✓ 已验证
产品关联
DOI
高影响因子
HIGH PERFORMANCE POLYMERS
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2020
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IF 1.568
Gang Lv,Songpei Xie,Danbo Mao,Ge Ren,Shibin Wu,Wei Yang
Mechanically robust optical homogeneous polyimide (PI) films with desirable atomic oxygen (AO) erosion duration were fabricated by initially synthesizing amine-functionalized hyperbranched polysiloxane (NH2-HBPSi), then reinforcing the pristine polyimide skeleton with it via copolycondensation reactions. NH2-HBPSi macromolecule imparts desirable AO survivability to the resulting hybrids. The mass loss per unit area of hybrid films had a downward trend with rising NH2-HBPSi content and AO dose before the complete silica protective layer was formed. It has been proven by the experiments in an underground simulated AO environment. It decreased to 1% of that of pristine polyimide when NH2-HBPSi accounted for 30% of the solid content after 24 h AO attack. The stable thickness uniformity that can meet the Rayleigh criterion was achieved in a 30 wt% HBPSi PI film, mainly due to the selection of the best process parameters. Meanwhile, 30 wt% HBPSi PI demonstrates satisfactory mechanical properties, with a tensile strength of 228.9 MPa and elongation at break of 7.3%. The characterization of scanning electron microscopy confirmed that pristine polyimide was substantially eroded after AO exposure while the surface morphology of 30 wt% HBPSi polyimide showed no evident change. The low AO erosion yield and prominent film thickness uniformity may find extensive usage in ultra-lightweight space diffractive optical elements (DOE) working in low earth orbit (LEO).
研究领域:
材料科学
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航空航天工程
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光学
✓ 已验证
DOI
高影响因子
MATERIALS CHEMISTRY AND PHYSICS
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2023
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IF 4.6
Jing Cao,Xiaoyu Xiong,Yuanfeng Liu,Jingbo Sun,Ji Zhou
Laser interference patterning of environment-friendly material with micro/nanoscale surface structures is in high demand for applications. We demonstrated the fabrication of periodic structure in copper-based organic-inorganic hybrid perovskite thin film by 532 nm laser two-beam interference. The extinction coefficient and index of refraction of the copper-based perovskite thin film were characterized by spectroscopic ellipsometry . The morphology of laser-induced structure was investigated by a combination of optical microscopy, scanning electron microscopy, and atomic force microscopy . In addition, the mechanism of the interaction between laser and copper-based perovskite thin film was discussed. This investigation expands the materials selection in laser fabrication and paves the way for optimization towards obtaining micro/nano features for applications in diffractive optics .
研究领域:
材料科学
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光学工程
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纳米技术
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）