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学者姓名:陈烽
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Abstract :
Fog generation can severely damage optical systems by degrading the light absorption rate and imaging quality of optical components. Furthermore, fog can reduce the light flux and transmittance of the optical system, resulting in poor imaging clarity and contrast. Studies have focused on minimizing fog formation and effects. Drawbacks such as high energy consumption and waste pollution severely limit the application of conventional methods. However, achieving high fog resistance of optical components remains a challenge. A novel method of fabricating anti-fogging slippery surfaces (inspired by the anti-fog mechanism of the mammalian cornea) on silica glass by using femtosecond lasers is proposed to achieve durable and environment-friendly optical devices that can achieve anti-fogging in real time. The femtosecond laser wet etching method is used to fabricate the inside cabin of glass. The cabin filled with graphene spontaneously heats the sample under sunlight to prevent fog formation. In addition to exhibiting excellent anti-fogging characteristics, the prepared sample achieves high optical transmittance, high durability, and excellent self-repair capability. Thus, the proposed method exhibits considerable potential for application in numerous domains.
Keyword :
anti-fogging optothermal response slippery surfaces wettability
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GB/T 7714 | Liang, Jie , Wang, Hao , Hu, Tao et al. Mammalian Cornea Inspired Anti-Fogging Silica Glass Surface Achieved by Femtosecond Laser [J]. | ADVANCED OPTICAL MATERIALS , 2023 . |
MLA | Liang, Jie et al. "Mammalian Cornea Inspired Anti-Fogging Silica Glass Surface Achieved by Femtosecond Laser" . | ADVANCED OPTICAL MATERIALS (2023) . |
APA | Liang, Jie , Wang, Hao , Hu, Tao , Shan, Chao , Yang, Qing , Zhang, Chengjun et al. Mammalian Cornea Inspired Anti-Fogging Silica Glass Surface Achieved by Femtosecond Laser . | ADVANCED OPTICAL MATERIALS , 2023 . |
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Abstract :
Bioinspired smart superwetting surfaces with special wettability have aroused great attention from fundamental research to technological applications including self-cleaning, oil-water separation, anti-icing/corrosion/fogging, drag reduction, cell engineering, liquid manipulation, and so on. However, most of the reported smart superwetting surfaces switch their wettability by reversibly changing surface chemistry rather than surface microstructure. Compared with surface chemistry, the regulation of surface microstructure is more difficult and can bring novel functions to the surfaces. As a kind of stimulus-responsive material, shape-memory polymer (SMP) has become an excellent candidate for preparing smart superwetting surfaces owing to its unique shape transformation property. This review systematically summarizes the recent progress of smart superwetting SMP surfaces including fabrication methods, smart superwetting phenomena, and related application fields. The smart superwettabilities, such as superhydrophobicity/superomniphobicity with tunable adhesion, reversible switching between superhydrophobicity and superhydrophilicity, switchable isotropic/anisotropic wetting, slippery surface with tunable wettability, and underwater superaerophobicity/superoleophobicity with tunable adhesion, can be obtained on SMP micro/nanostructures by regulating the surface morphology. Finally, the challenges and future prospects of smart superwetting SMP surfaces are discussed.
Keyword :
micro morphology regulation nanostructures reversible wettability shape-memory polymers smart superwetting property
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GB/T 7714 | Bai, Xue , Gou, Xiaodan , Zhang, Jialiang et al. A Review of Smart Superwetting Surfaces Based on Shape-Memory Micro/Nanostructures [J]. | SMALL , 2023 . |
MLA | Bai, Xue et al. "A Review of Smart Superwetting Surfaces Based on Shape-Memory Micro/Nanostructures" . | SMALL (2023) . |
APA | Bai, Xue , Gou, Xiaodan , Zhang, Jialiang , Liang, Jie , Yang, Lijing , Wang, Shaopeng et al. A Review of Smart Superwetting Surfaces Based on Shape-Memory Micro/Nanostructures . | SMALL , 2023 . |
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Abstract :
随着科技的发展,柔性电子器件在医疗健康、柔性机器人以及人机交互领域中的应用越来越广泛。柔性电子器件的关键在于柔性电极材料,传统柔性电极材料如结构化的金属薄膜、金属纳米颗粒/线以及导电聚合物等存在高延展性与高导电性无法同时满足的问题。镓基液态金属作为一种室温下呈现液态的金属材料,具备金属高导电性的同时也具有无限延展性,是一种理想的柔性电极材料,是近年来的研究热点。对液态金属进行图案化处理是制备液态金属基柔性电子器件的必要环节。重点介绍了以浸润性调控的方法实现液态金属图案化的工艺。激光作为一种精密加工方式,被常用来制备各种功能表面,同时也是调控液体浸润性的主要手段之一。结合激光的高精密加工能力与液态金属优异的电学性能,能够实现高分辨率、多功能以及高集成度的液态金属电子器件制备。综述了近年来国内外在激光制备液态金属柔性电子器件方面的主要工作,并展望了未来激光制备高性能液态金属电子器件的前景。
Keyword :
激光 激光技术 浸润性 柔性电子器件 图案化 液态金属
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GB/T 7714 | 李昊昱 , 张承君 , 杨青 et al. 激光制备液态金属基柔性电子及其应用 [J]. | 中国激光 , 2022 , 49 (10) : 177-198 . |
MLA | 李昊昱 et al. "激光制备液态金属基柔性电子及其应用" . | 中国激光 49 . 10 (2022) : 177-198 . |
APA | 李昊昱 , 张承君 , 杨青 , 侯洵 , 陈烽 . 激光制备液态金属基柔性电子及其应用 . | 中国激光 , 2022 , 49 (10) , 177-198 . |
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Abstract :
Pursuing flexible tactile electronic skin sensors with superior comprehensive performances is highly desired in practical applications. However, current flexible tactile electronic skin sensors suffer insufficient flexibility and sensitivity, as well as high-cost and low -efficiency in fabrication, and are susceptible to contamination in sensing performances. Here, a highly sensitive all-flexible tactile sensor (AFTS) is presented with capacitive sensing that combines a double-side micropyramids dielectric layer and a liquid metal (LM) electrode. The design and fabrication of LM-based AFTS are based on supermetalphobicity induced by femtosecond laser. The super-metalphobic micropyramids lead to a high sensitivity up to 2.78 kPa(-1,) an ultralow limit of detection of similar to 3 Pa, a fast response time of 80 ms, and an excellent durability of cyclic load over 10 000 times. The used femtosecond laser enables programmable, high-efficiency, low-cost, and large-scale fabrication of supermetalphobic double-side micropyramids, which is difficult to implement using conventional techniques. Furthermore, the outer substrates are treated by a femtosecond laser, endowing the AFTS with excellent antifouling performance and stable sensing signals in the highly humid environment. Successful monitoring of human physiological and motion signals demonstrates the potential of our developed AFTS for wearable biomonitoring applications.
Keyword :
double-side micropyrmaids femtosecond laser fabrication flexible tactile electronic skin sensors liquid metal supermetalphobicity
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GB/T 7714 | Zhang, Chengjun , Li, Zhikang , Li, Haoyu et al. Femtosecond Laser-Induced Supermetalphobicity for Design and Fabrication of Flexible Tactile Electronic Skin Sensor [J]. | ACS APPLIED MATERIALS & INTERFACES , 2022 , 14 (33) . |
MLA | Zhang, Chengjun et al. "Femtosecond Laser-Induced Supermetalphobicity for Design and Fabrication of Flexible Tactile Electronic Skin Sensor" . | ACS APPLIED MATERIALS & INTERFACES 14 . 33 (2022) . |
APA | Zhang, Chengjun , Li, Zhikang , Li, Haoyu , Yang, Qing , Wang, Hao , Shan, Chao et al. Femtosecond Laser-Induced Supermetalphobicity for Design and Fabrication of Flexible Tactile Electronic Skin Sensor . | ACS APPLIED MATERIALS & INTERFACES , 2022 , 14 (33) . |
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Abstract :
The preparation of the wavelength-scale micropores on metallic surfaces is limited by the high opacity of metal. At present, most micropores reported in the literature are more than 20 mu m in diameter, which is not only large in size, but renders them inefficient for processing so that it is difficult to meet the needs of some special fields, such as aerospace, biotechnology, and so on. In this paper, the rapid laser fabrications of the wavelength-scale micropores on various metallic surfaces are achieved through femtosecond MHz burst Bessel beam ablation. Taking advantage of the long-depth focal field of the Bessel beam, high-density micropores with a diameter of 1.3 mu m and a depth of 10.5 mu m are prepared on metal by MHz burst accumulation; in addition, the rapid fabrication of 2000 micropores can be achieved in 1 s. The guidelines and experimental results illustrate that the formations of the wavelength-scale porous structures are the result of the co-action of the laser-induced periodic surface structure (LIPSS) effect and Bessel beam interference. Porous metal can be used to store lubricant and form a lubricating layer on the metallic surface, thus endowing the metal resistance to various liquids' adhesion. The microporous formation process on metal provides a new physical insight for the rapid preparation of wavelength-scale metallic micropores, and promotes the application of porous metal in the fields of catalysis, gas adsorption, structural templates, and bio-transportation fields.
Keyword :
femtosecond laser laser-induced periodic surface structure (LIPSS) MHz burst Bessel beam porous metal wavelength-scale micropores
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GB/T 7714 | Cheng, Yang , Lu, Yu , Yang, Qing et al. Rapid Fabrication of Wavelength-Scale Micropores on Metal by Femtosecond MHz Burst Bessel Beam Ablation [J]. | NANOMATERIALS , 2022 , 12 (24) . |
MLA | Cheng, Yang et al. "Rapid Fabrication of Wavelength-Scale Micropores on Metal by Femtosecond MHz Burst Bessel Beam Ablation" . | NANOMATERIALS 12 . 24 (2022) . |
APA | Cheng, Yang , Lu, Yu , Yang, Qing , Zhong, Jun , Xu, Mengchen , Gou, Xiaodan et al. Rapid Fabrication of Wavelength-Scale Micropores on Metal by Femtosecond MHz Burst Bessel Beam Ablation . | NANOMATERIALS , 2022 , 12 (24) . |
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Abstract :
The efficient fabrication of nanochannels on hard and brittle materials is a difficult task in the field of micro and nano processing. We have realized nanochannel arrays on silica with characteristic scales varying from 50–230 nm using a single femtosecond Bessel beam pulse of 515 nm. By characterizing the surface openings, we found that the characteristic scales of the nanopore openings are inextricably linked to the surface energy deposition effect. We achieved not only three asymmetric channel profiles by adjusting the laser-sample interaction region, but also high aspect ratio nanochannels with characteristic scales about 50 nm and aspect ratios over 100. These results on hard and brittle materials provide a broader platform and application scenarios for smart particle rectifiers, DNA molecular sequencing, biosensors, and nanofluidic devices, which are also more suitable for future practical applications due to their low cost, good durability, and high productivity. Copyright © 2022 Kai, Chen, Lu, Meng, Liu, Cheng, Yang, Hou and Chen.
Keyword :
bessel pulses; hard and brittle materials; high aspect ratio; laser fabrication; nanochannels
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GB/T 7714 | Kai, L. , Chen, C. , Lu, Y. et al. Insight on the regulation mechanism of the nanochannels in hard and brittle materials induced by sparially shaped femtosecond laser [J]. | Frontiers in Chemistry , 2022 , 10 . |
MLA | Kai, L. et al. "Insight on the regulation mechanism of the nanochannels in hard and brittle materials induced by sparially shaped femtosecond laser" . | Frontiers in Chemistry 10 (2022) . |
APA | Kai, L. , Chen, C. , Lu, Y. , Meng, Y. , Liu, Y. , Cheng, Y. et al. Insight on the regulation mechanism of the nanochannels in hard and brittle materials induced by sparially shaped femtosecond laser . | Frontiers in Chemistry , 2022 , 10 . |
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Abstract :
Slippery liquid-infused porous surfaces (SLIPSs) have become an effective method to provide materials with sliding performance and, thus, achieve liquid repellency, through the process of infusing lubricants into the microstructure of the surface. However, the construction of microstructures on high-strength metals is still a significant challenge. Herein, we used a femtosecond laser with a temporally shaped Bessel beam to process NiTi alloy, and created uniform porous structures with a microhole diameter of around 4 µm, in order to store and lock lubricant. In addition, as the lubricant is an important factor that can influence the sliding properties, five different lubricants were selected to prepare the SLIPSs, and were further compared in terms of their sliding behavior. The temperature cycle test and the hydraulic pressure test were implemented to characterize the durability of the samples, and different liquids were used to investigate the possible failure under complex fluid conditions. In general, the prepared SLIPSs exhibited superior liquid repellency. We believe that, in combination with a femtosecond laser, slippery liquid-infused porous surfaces are promising for applications in a wide range of areas. © 2022 by the authors.
Keyword :
femtosecond laser; liquid repellency; NiTi alloy; sliding performance; SLIPS
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GB/T 7714 | Fang, Z. , Cheng, Y. , Yang, Q. et al. Design of Metal-Based Slippery Liquid-Infused Porous Surfaces (SLIPSs) with Effective Liquid Repellency Achieved with a Femtosecond Laser [J]. | Micromachines , 2022 , 13 (8) . |
MLA | Fang, Z. et al. "Design of Metal-Based Slippery Liquid-Infused Porous Surfaces (SLIPSs) with Effective Liquid Repellency Achieved with a Femtosecond Laser" . | Micromachines 13 . 8 (2022) . |
APA | Fang, Z. , Cheng, Y. , Yang, Q. , Lu, Y. , Zhang, C. , Li, M. et al. Design of Metal-Based Slippery Liquid-Infused Porous Surfaces (SLIPSs) with Effective Liquid Repellency Achieved with a Femtosecond Laser . | Micromachines , 2022 , 13 (8) . |
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Abstract :
仿猪笼草的超滑表面由于可以抵抗多种液体的粘附,具有优异的稳定性与自修复性,受到越来越广泛的关注。而飞秒激光由于其对加工材料的普适性、高精度,以及高可控性,成为仿生超滑表面制备的有力手段。本文以仿猪笼草的超滑表面为背景,以飞秒激光微加工技术为手段。从超滑表面的飞秒激光微纳制备和应用两个方面,概述了超滑表面的微纳制造和应用。针对不同材料,通过对飞秒激光进行调控,实现了在聚合物、硬脆透明材料,以及金属上的超滑表面制备。制备的超滑表面可应用于液滴、气泡操控、生物抗凝、防污和防腐等领域。最后总结超滑表面所面临的挑战。
Keyword :
超滑表面 超疏液 飞秒激光 微纳加工 血液相容性
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GB/T 7714 | 杨青 , 成扬 , 方政 et al. 仿生超滑表面的飞秒激光微纳制造及应用 [J]. | 光电工程 , 2022 , 49 (1) : 5-26 . |
MLA | 杨青 et al. "仿生超滑表面的飞秒激光微纳制造及应用" . | 光电工程 49 . 1 (2022) : 5-26 . |
APA | 杨青 , 成扬 , 方政 , 张嘉亮 , 侯洵 , 陈烽 . 仿生超滑表面的飞秒激光微纳制造及应用 . | 光电工程 , 2022 , 49 (1) , 5-26 . |
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Abstract :
Compressed sensing (CS) has been successfully demonstrated to reconstruct ultrafast dynamic scenes in ultrafast imaging techniques with large sequence depth. Since compressed ultrafast imaging used a two-step iterative shrinkage/thresholding (TwIST) algorithm in previous image reconstruction, some details of the object will not be recovered when the amount of data compression is large. Here we applied a more efficient Total Variation (TV) minimization scheme based on augmented Lagrangian and alternating direction algorithms (TVAL3) to reconstruct the ultrafast process. In order to verify the effectiveness of the TVAL3 algorithm, we experimentally compare the reconstruction quality of TVAL3 algorithm and TwIST algorithm in an ultrafast imaging system based on compressed-sensing and spectral-temporal coupling active detection with highest frame rate of 4.37 trillion Hz. Both dynamic and static experimental results show that, TVAL3 algorithm can not only reconstruct a rapidly moving light pulse with a more precise profile and more fitted trajectory, but also improve the quality of static objects and the speed of reconstruction. This work will advance the ultrafast imaging techniques based on compressed sensing in terms of image reconstruction quality and reconstruction speed, which finally helps promoting the application of these techniques in areas where high spatial precision is required, such as phase transitions and laser filamentation in nonlinear solids, etc. © 2022 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement.
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GB/T 7714 | Yin, F. , Meng, Y. , Yang, Q. et al. High precision reconstruction for compressed femtosecond dynamics images based on the TVAL3 algorithm [J]. | Optical Materials Express , 2022 , 12 (11) : 4435-4443 . |
MLA | Yin, F. et al. "High precision reconstruction for compressed femtosecond dynamics images based on the TVAL3 algorithm" . | Optical Materials Express 12 . 11 (2022) : 4435-4443 . |
APA | Yin, F. , Meng, Y. , Yang, Q. , Kai, L. , Liu, Y. , Hou, X. et al. High precision reconstruction for compressed femtosecond dynamics images based on the TVAL3 algorithm . | Optical Materials Express , 2022 , 12 (11) , 4435-4443 . |
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Abstract :
Human beings are facing severe global environmental problems and sustainable development problems. Effective separation technology plays an essential role in solving these challenges. In the past decades, superwettability (e.g., superhydrophobicity and underwater superoleophobicity) has succeeded in achieving oil/water separation. The mixture of oil and water is just the tip of the iceberg of the mixtures that need to be separated, so the wettability-based separation strategy should be extended to treat other kinds of liquid/liquid or liquid/gas mixtures. This review aims at generalizing the approach of the well-developed oil/water separation to separate various multiphase mixtures based on the surface superwettability. Superhydrophobic and even superoleophobic surface microstructures have liquid-repellent properties, making different liquids keep away from them. Inspired by the process of oil/water separation, liquid polymers can be separated from water by using underwater superpolymphobic materials. Meanwhile, the underwater superaerophobic and superaerophilic porous materials are successfully used to collect or remove gas bubbles in a liquid, thus achieving liquid/gas separation. We believe that the diversified wettability-based separation methods can be potentially applied in industrial manufacture, energy use, environmental protection, agricultural production, and so on.
Keyword :
gas separation liquid oil solid superhydrophobicity superwettability water water separation
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GB/T 7714 | Yong, Jiale , Yang, Qing , Hou, Xun et al. Emerging Separation Applications of Surface Superwettability [J]. | NANOMATERIALS , 2022 , 12 (4) . |
MLA | Yong, Jiale et al. "Emerging Separation Applications of Surface Superwettability" . | NANOMATERIALS 12 . 4 (2022) . |
APA | Yong, Jiale , Yang, Qing , Hou, Xun , Chen, Feng . Emerging Separation Applications of Surface Superwettability . | NANOMATERIALS , 2022 , 12 (4) . |
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