Journal
OPTICS EXPRESS
Volume 26, Issue 23, Pages 30393-30399Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.26.030393
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- Ministry of Science and Technology, Taiwan (MOST) [105-2628-M-007-003-MY4, 107-2112-M-143 -001 -MY3]
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With theoretical analyses and numerical calculations, we show that a passive scatterer at the sub-wavelength scale can simultaneously exhibit both nearly zero forward scattering (NZFS) and nearly zero backward scattering (NZBS). It is related to the interference of dipolar quadrupole modes of different origin, leading to coexistence of Kerker's first and second conditions at the same time. For optical frequencies, we propose two different sets of composited materials in multi-layered nano-structures, i.e., CdTe/Si/TiO2 and TiO2/Au/Si, for the experimental realization. (C) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
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