Journal
ADVANCED OPTICAL MATERIALS
Volume 4, Issue 5, Pages 664-670Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adom.201500723
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Funding
- AFOSR Grant [FA9550-14-1-0105]
- ONR MURI Grant [N00014-10-1-0942]
- excellence cluster Nano Initiative Munich (NIM)
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Ultrathin metasurfaces with record-high nonlinear optical response of 1.2 x 10(6) pm V-1 for second harmonic generation are experimentally demonstrated in the mid-infrared spectral range. A second harmonic power conversion efficiency of 0.075% is achieved in a 400-nm-thick (lambda/25) metasurface at a pump intensity of only 15 kW cm(-2).
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