期刊
SCIENCE
卷 328, 期 5976, 页码 337-339出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1186351
关键词
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资金
- Deutsche Forschungsgemeinschaft (DFG)
- State of Baden-Wurttemberg through the DFG-Center for Functional Nanostructures [A1.4, A1.5]
- European Commission [213390]
- Bundesministerium fur Bildung und Forschung
- KSOP
We have designed and realized a three-dimensional invisibility-cloaking structure operating at optical wavelengths based on transformation optics. Our blueprint uses a woodpile photonic crystal with a tailored polymer filling fraction to hide a bump in a gold reflector. We fabricated structures and controls by direct laser writing and characterized them by simultaneous high-numerical-aperture, far-field optical microscopy and spectroscopy. A cloaking operation with a large bandwidth of unpolarized light from 1.4 to 2.7 micrometers in wavelength is demonstrated for viewing angles up to 60 degrees.
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