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Jun, Young Chul
Laboratory of Nanophotonics & Metamaterials (NanoMeta)
Research Interests
  • Nanophotonics, plasmonics, metamaterials, 4D printing, programmable matter, smart materials

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Optical magnetic mirrors without metals

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Title
Optical magnetic mirrors without metals
Author
Liu, ShengSinclair, Michael B.Mahony, Thomas S.Jun, Young ChulCampione, SalvatoreGinn, JamesBender, Daniel A.Wendt, Joel R.Ihlefeld, Jon F.Clem, Paul G.Wright, Jeremy B.Brener, Igal
Issue Date
2014-10
Publisher
OPTICAL SOC AMER
Citation
OPTICA, v.1, no.4, pp.250 - 256
Abstract
The reflection of an optical wave from metal, arising from strong interactions between the optical electric field and the free carriers of the metal, is accompanied by a phase reversal of the reflected electric field. A far less common route to achieving high reflectivity exploits strong interactions between the material and the optical magnetic field to produce a "magnetic mirror" that does not reverse the phase of the reflected electric field. At optical frequencies, the magnetic properties required for strong interaction can be achieved only by using artificially tailored materials. Here, we experimentally demonstrate, for the first time to the best of our knowledge, the magnetic mirror behavior of a low-loss all-dielectric metasurface at infrared optical frequencies through direct measurements of the phase and amplitude of the reflected optical wave. The enhanced absorption and emission of transverse-electric dipoles placed close to magnetic mirrors can lead to exciting new advances in sensors, photodetectors, and light sources. (C) 2014 Optical Society of Americ
URI
https://scholarworks.unist.ac.kr/handle/201301/16685
URL
https://www.osapublishing.org/optica/abstract.cfm?uri=optica-1-4-250
DOI
10.1364/OPTICA.1.000250
ISSN
2334-2536
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