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| 1 | 变换物理学——原理与应用显示文摘变换光学(Transformation Optics)可以使几何空间上的变化转移到非均匀光学超材料的光学参量的变化上。光学隐身就是其中典型的例子,就在几年前人们还认为这是不可能的。为了制备光频段、宽带、偏振不敏感、三维的光强、相位隐身材料,利用激光直写结合受激辐射耗尽技术,可以突破传统的衍射极限。这种变换的思想同样可以应用到其他领域,如力学(确切地说,弹性动力学)和热力学。还讨论了相关的实验过程和研究结果。 | Martin Wegener | 2015 | 光学与光电技术2015，13，1： | 2 |
| 2 | Towards in-situ diagnostics of multi-photon 3D laser printing using optical coherence tomography显示文摘In recent years,multi-photon 3D laser printing has become a widely used tool for the fabrication of micro-and nanostructures for a large variety of applications.Typically,thorough sample characterisation is key for an efficient optimisation of the printing process.To date,three-dimensional microscopic inspection has usually been carried out on finished 3D printed microstructures,that is,using ex-situ approaches.In contrast,in-situ 3D characterization tools are desirable for quickly assessing the quality and properties of 3D printed microstructures.Along these lines,we present and characterise a Fourier-domain optical coherence tomography(FD-OCT)system that can be readily integrated into an existing 3D laser lithography setup.We demonstrate its capabilities by examining different 3D printed polymer microstructures immersed in a liquid photoresist.In such samples,local reflectivity arises from the(refractive-index)contrasts between the polymerised and non-polymerised regions.Thus,the refractive index of the printed material can be extracted.Furthermore,we demonstrate that the reflectivity of polymer-monomer transitions exhibits time-dependent behaviour after printing.Supported by transfer-matrix calculations,we explain this effect in terms of the time-dependent graded-index transition originating from monomer diffusion into the polymer matrix.Finally,we show exemplary 3D reconstructions of printed structures that can be readily compared with 3D computer designs. | Roman Zvagelsky Frederik Mayer Dominik Beutel Carsten Rockstuhl Guillaume Gomard Martin Wegener | 2022 | Light(Advanced Manufacturing)2022，3，3： | 2 |
| 3 | Hybrid 2D–3D optical devices for integrated optics by direct laser writing显示文摘Integrated optical chips have already been established for application in optical communication.They also offer interesting future perspectives for integrated quantum optics on a chip.At present,however,they are mostly fabricated using essentially planar fabrication approaches like electron-beam lithography or UV optical lithography.Many further design options would arise if one had complete fabrication freedom in regard to the third dimension normal to the chip without having to give up the virtues and the know-how of existing planar fabrication technologies.As a step in this direction,we here use three-dimensional dip-in direct-laser-writing optical lithography to fabricate three-dimensional polymeric functional devices on pre-fabricated planar optical chips containing Si3N4 waveguides as well as grating couplers made by standard electron-beam lithography.The first example is a polymeric dielectric rectangular-shaped waveguide which is connected to Si3N4 waveguides and that is adiabatically twisted along its axis to achieve geometrical rotation of linear polarization on the chip.The rotator’s broadband performance at around 1550 nm wavelength is verified by polarization-dependent grating couplers.Such polarization rotation on the optical chip cannot easily be achieved by other means.The second example is a whispering-gallery-mode optical resonator connected to Si_(3)N_(4) waveguides on the chip via polymeric waveguides.By mechanically connecting the latter to the disk,we can control the coupling to the resonator and,at the same time,guarantee mechanical stability of the three-dimensional architecture on the chip. | Martin Schumann Tiemo Buckmann Nico Gruhler Martin Wegener Wolfram Pernice | 2014 | Light(Science & Applications)2014，3，1： | 2 |
| 4 | Predictions of permanent deformation of impulsively loaded simply supported square tubes steel beams 显示文摘 | Wegener R B Martin J B | 1985 | International Journal of Mechanical Science1985，27，12： | 1 |
| 5 | Magnetic Response of Metamaterials at 100 Terahertz 显示文摘 | STFAN LINDEN CHRISTIAN ENKRICH MARTIN WEGENER | 2004 | Science2004，306，5700： | 1 |
| 6 | Multi-material multi-photon 3D laser microand nanoprinting显示文摘Three-dimensional(3D)laser micro-and nanoprinting based upon multi-photon absorption has made its way from early scientific discovery to industrial manufacturing processes,e.g.,for advanced microoptical components.However,so far,most realized 3D architectures are composed of only a single polymeric material.Here,we review 3D printing of multi-materials on the nano-and microscale.We start with material properties that have been realized,using multi-photon photoresists.Printed materials include bulk polymers,conductive polymers,metals,nanoporous polymers,silica glass,chalcogenide glasses,inorganic single crystals,natural polymers,stimuliresponsive materials,and polymer composites.Next,we review manual and automated processes achieving dissimilar material properties in a single 3D structure by sequentially photo-exposing multiple photoresists as 3D analogs of 2D multicolor printing.Instructive examples from biology,optics,mechanics,and electronics are discussed.An emerging approach–without counterpart in 2D graphical printing–prints 3D structures combining dissimilar material properties in one 3D structure by using only a single photoresist.A controlled stimulus applied during the 3D printing process defines and determines material properties on the voxel level.Change of laser power and/or wavelength,or application of quasi-static electric fields allow for the seamless manipulation of desired materials properties. | Liang Yang Frederik Mayer Uwe H.F.Bunz Eva Blasco Martin Wegener | 2021 | Light(Advanced Manufacturing)2021，2，3： | 1 |
| 7 | On anisotropic versions of three-dimensional pentamode meta materials 显示文摘 | Kadic M Biickmann T Schittny R Tiemo Schittny Robert Wegener Martin | 2013 | New Journal of Physics2013，15，23： | 1 |
| 8 | 具有类roton色散关系的立方对称声学超材料显示文摘我们之前的工作表明,声学超材料中的非局部相互作用会导致极不寻常的类roton色散关系,即色散曲线存在局部极小值,与超流体液氦-4类似.然而,这种行为仅限于一个或两个声传播方向.在这里,我们设计了一种三维立方对称声学超材料,沿三个正交方向具有非局部相互作用.有限元计算表明超材料在三个正交方向具有类roton行为,但其行为远非各向同性.有限元结果与半解析模型结果吻合良好.相应的实验正在探索中,由于需要密集而复杂的三维声学管道,实验要求较高. | 王珂 陈毅 Muamer Kadic 王长国 Martin Wegener | 2023 | Acta Mechanica Sinica2023，39，7： | 0 |
| 9 | Wuhan Optoelectronics Forum 72: Transformation physics: from fundamentals to applications显示文摘 | Martin Wegener | 2014 | Frontiers of Optoelectronics2014，7，1： | 0 |
| 10 | 定制材料显示文摘一个多世纪以来,几乎所有的技术进步都依赖于我们制作和操控大自然赋予的海量材料的能力。这种依赖到处可见。在电子领域尤为明显。利用种类繁多的半导体、聚合物和金属,我们已能够创造出令人目不暇接的各类电路,这些电路几乎支撑着现代生活的方方面面。 | Joachim Fischer Michael Thiel Martin Wegener | 2014 | 科技纵览2014，，2： | 0 |
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