E. Stratakis, J. Bonse, J. Heitz, J. Siegel, G. D. Tsibidis, E. Skoulas, A. Papadopoulos, A. Mimidis, A. -C. Joel, P. Comanns, J. Krüger, C. Florian, Y. Fuentes… 展开作者
E. Stratakis, J. Bonse, J. Heitz, J. Siegel, G. D. Tsibidis, E. Skoulas, A. Papadopoulos, A. Mimidis, A. -C. Joel, P. Comanns, J. Krüger, C. Florian, Y. Fuentes-Edfuf, J. Solis, W. Baumgartner
发表信息:
Materials Science & Engineering R 141, 100562 (2020)
The exciting properties of micro- and nano-patterned surfaces found in natural species hide a virtually endless potential of technological ideas, opening new opportunities for innovation and exploitation in materials science and engineering. Due to the diversity of biomimetic surface functionalities, inspirations from natural surfaces are interesting for a broad range of applications in engineering, including phenomena of adhesion, friction, wear, lubrication, wetting phenomena, self-cleaning, antifouling, antibacterial phenomena, thermoregulation and optics. Lasers are increasingly proving to be promising tools for the precise and controlled structuring of materials at micro- and nano-scales. When ultrashort-pulsed lasers are used, the optimal interplay between laser and material parameters enables structuring down to the nanometer scale. Besides this, a unique aspect of laser processing technology is the possibility for material modifications at multiple (hierarchical) length scales, leading to the complex biomimetic micro- and nano-scale patterns, while adding a new dimension to structure optimization. This article reviews the current state of the art of laser processing methodologies, which are being used for the fabrication of bioinspired artificial surfaces to realize extraordinary wetting, optical, mechanical, and biological-active properties for numerous applications. The innovative aspect of laser functionalized biomimetic surfaces for a wide variety of current and future applications is particularly demonstrated and discussed. The article concludes with illustrating the wealth of arising possibilities and the number of new laser micro/nano fabrication approaches for obtaining complex high-resolution features, which prescribe a future where control of structures and subsequent functionalities are beyond our current imagination.
Solvent-Directed Femtosecond Laser Ablation: Tuning Phase and Defect Engineering in Hybrid CdPS3/CdS Nanostructures
Moscow Center for Advanced Studies(莫斯科高级研究中心);Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research(核物理弗兰克实验室,俄罗斯联合核研究所);Emerging Technologies Research Center, XPANCEO(新兴技术中心,XPANCEO);Department of General Physics, Perm National Research Polytechnic University(彼尔姆国立研究理工大学普通物理系)
Dispersion engineering of Quantum Cascade Lasers frequency combs
量子级联激光器是能够产生频率梳的紧凑源。然而,关键特性-如光学带宽和功率每模式分布-必须得到改善,以更好地解决光谱应用。群延迟色散对梳状结构的形成起着重要的作用。在这项工作中,我们证明了基于Gires-Tournois干涉仪集成到QCL梳的色散补偿方案大大提高了梳操作制度,防止形成以前观察到的高相位噪声制度。这些梳的连续波输出功率通常为$>$ 100 mW,光谱中心为1330 cm $^{-1}$(7.52 $μ$ m),光带宽为$\sim$ 70 cm $^{-1}$。我们的研究结果表明,QCL梳是基于芯片的频率梳光谱系统的理想来源。
Asymptotic stability of laser-driven lightsails: Enhancement by optical dispersion engineering in gratings
The University of Sydney(悉尼大学);School of Physics, The University of Sydney(悉尼大学物理学院);Institute of Photonics and Optical Science, The University of Sydney(悉尼大学光子与光学科学研究所);School of Electrical and Computer Engineering, The University of Sydney(悉尼大学电气与计算机工程学院);The University of Sydney Nano Institute, The University of Sydney(悉尼大学纳米研究院)