Search Results - "WEGENER, Martin"
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Metamaterials Beyond Optics
Published in Science (American Association for the Advancement of Science) (22-11-2013)“…The area of metamaterials may expand to find application in mechanics, acoustics, and thermodynamics. So far, the field of metamaterials has largely dealt with…”
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Three-dimensional optical laser lithography beyond the diffraction limit
Published in Laser & photonics reviews (01-01-2013)“…Direct laser writing has become a versatile and routine tool for the mask‐free fabrication of polymer structures with lateral linewidths down to less than…”
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3
Experiments on transformation thermodynamics: molding the flow of heat
Published in Physical review letters (10-05-2013)“…It was recently shown theoretically that the time-dependent heat conduction equation is form invariant under curvilinear coordinate transformations. Thus, in…”
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Roton-like acoustical dispersion relations in 3D metamaterials
Published in Nature communications (02-06-2021)“…Roton dispersion relations have been restricted to correlated quantum systems at low temperatures, such as liquid Helium-4, thin films of Helium-3, and…”
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5
Photochemically Driven Polymeric Network Formation: Synthesis and Applications
Published in Advanced materials (Weinheim) (01-04-2017)“…Polymeric networks have been intensely investigated and a large number of applications have been found in areas ranging from biomedicine to materials science…”
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4D Printing at the Microscale
Published in Advanced functional materials (01-06-2020)“…3D printing of adaptive and dynamic structures, also known as 4D printing, is one of the key challenges in contemporary materials science. The additional…”
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3D Laser Micro‐ and Nanoprinting: Challenges for Chemistry
Published in Angewandte Chemie International Edition (11-12-2017)“…3D printing is a powerful emerging technology for the tailored fabrication of advanced functional materials. This Review summarizes the state‐of‐the art with…”
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Mechanical cloak design by direct lattice transformation
Published in Proceedings of the National Academy of Sciences - PNAS (21-04-2015)“…Significance Calculating the behavior or function of a given material microstructure in detail can be difficult, but it is conceptually straightforward. The…”
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Three-Dimensional Invisibility Cloak at Optical Wavelengths
Published in Science (American Association for the Advancement of Science) (16-04-2010)“…We have designed and realized a three-dimensional invisibility-cloaking structure operating at optical wavelengths based on transformation optics. Our…”
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On the practicability of pentamode mechanical metamaterials
Published in Applied physics letters (07-05-2012)“…Conceptually, all conceivable three-dimensional mechanical materials can be built from pentamode materials. Pentamodes also enable to implement…”
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Ultrasound experiments on acoustical activity in chiral mechanical metamaterials
Published in Nature communications (29-07-2019)“…Optical activity requires chirality and is a paradigm for chirality. Here, we present experiments on its mechanical counterpart, acoustical activity. The…”
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Optical Metamaterials— More Bulky and Less Lossy
Published in Science (American Association for the Advancement of Science) (17-12-2010)“…Advanced techniques for bulk fabrication and loss reduction provide good prospects for practical optical metamaterials. Usually, investigators in materials…”
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13
The Materials Challenge in Diffraction-Unlimited Direct-Laser-Writing Optical Lithography
Published in Advanced materials (Weinheim) (24-08-2010)“…Using a novel photoresist (composed of pentaerythritol triacrylate and isopropyl thioxanthone) that favors stimulated emission depletion by a π‐π* transition…”
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14
3D printing of inherently nanoporous polymers via polymerization-induced phase separation
Published in Nature communications (11-01-2021)“…3D printing offers enormous flexibility in fabrication of polymer objects with complex geometries. However, it is not suitable for fabricating large polymer…”
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3D Scaffolds to Study Basic Cell Biology
Published in Advanced materials (Weinheim) (01-06-2019)“…Mimicking the properties of the extracellular matrix is crucial for developing in vitro models of the physiological microenvironment of living cells. Among…”
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16
Controlling the shape of 3D microstructures by temperature and light
Published in Nature communications (16-01-2019)“…Stimuli-responsive microstructures are critical to create adaptable systems in soft robotics and biosciences. For such applications, the materials must be…”
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Tailored 3D Mechanical Metamaterials Made by Dip-in Direct-Laser-Writing Optical Lithography
Published in Advanced materials (Weinheim) (22-05-2012)“…Dip‐in direct‐laser‐writing (DLW) optical lithography allows fabricating complex three‐dimensional microstructures without the height restrictions of regular…”
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18
Negative Refractive Index at Optical Wavelengths
Published in Science (American Association for the Advancement of Science) (05-01-2007)“…Metamaterials are designed to have structures that provide optical properties not found in nature. If their capacity can be extended, new kinds of devices for…”
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Helicity-Preserving Optical Cavity Modes for Enhanced Sensing of Chiral Molecules
Published in Physical review letters (24-01-2020)“…Researchers routinely sense molecules by their infrared vibrational "fingerprint" absorption resonances. In addition, the dominant handedness of chiral…”
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20
Generalized Hartmann-Shack array of dielectric metalens sub-arrays for polarimetric beam profiling
Published in Nature communications (02-11-2018)“…To define and characterize optical systems, obtaining the amplitude, phase, and polarization profile of optical beams is of utmost importance. Traditional…”
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