News Column

New Findings in General Science Described by T. Buckmann and Co-Researchers (An elasto-mechanical unfeelability cloak made of pentamode metamaterials)

August 15, 2014

By a News Reporter-Staff News Editor at Science Letter -- Investigators discuss new findings in Science. According to news reporting originating from Eggenstein Leopoldshafen, Germany, by NewsRx correspondents, research stated, "Metamaterial-based cloaks make objects different from their surrounding appear just like their surrounding. To date, cloaking has been demonstrated experimentally in many fields of research, including electrodynamics at microwave frequencies, optics, static electric conduction, acoustics, fluid dynamics, thermodynamics and quasi two-dimensional solid mechanics."

Our news editors obtained a quote from the research, "However, cloaking in the seemingly simple case of three-dimensional solid mechanics is more demanding. Here, inspired by invisible core-shell nanoparticles in optics, we design an approximate elasto-mechanical core-shell 'unfeelability' cloak based on pentamode metamaterials. The resulting three-dimensional polymer microstructures with macroscopic overall volume are fabricated by rapid dip-in direct laser writing optical lithography. We quasi-statically deform cloak and control samples in the linear regime and map the displacement fields by autocorrelation-based analysis of recorded movies. The measured and the calculated displacement fields show very good cloaking performance."

According to the news editors, the research concluded: "This means that one can elastically hide objects along these lines."

For more information on this research see: An elasto-mechanical unfeelability cloak made of pentamode metamaterials. Nature Communications, 2014;5():52-57. Nature Communications can be contacted at: Nature Publishing Group, Macmillan Building, 4 Crinan St, London N1 9XW, England. (Nature Publishing Group -; Nature Communications -

The news editors report that additional information may be obtained by contacting T. Buckmann, Nanoscribe GmbH, D-76344 Eggenstein Leopoldshafen, Germany. Additional authors for this research include M. Thiel, M. Kadic, R. Schittny and M. Wegener (see also Science).

Keywords for this news article include: Europe, Germany, Physics, Science, Solid Mechanics, Eggenstein Leopoldshafen

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Source: Science Letter

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