TY - JOUR
T1 - Analysis of polarization interference-type bpf arrays for nir spectroscopic imaging utilizing all-dielectric planar chiral metamaterials
AU - Ohtera, Yasuo
AU - Yu, Jiyao
AU - Yamada, Hirohito
PY - 2018/1/1
Y1 - 2018/1/1
N2 - We investigated the potential application of planar chiral metamaterials (PCMs) to near infrared wavelength filters for multispectral measurement through electromagnetic simulation. PCM assumed here was a two-dimensional sub-wavelength surface grating on a high index film with chiral unit cells. The PCM exhibits optical activity (OA) for normally incident light at a finite wavelength range. Thus, by sandwiching the PCM with a pair of linear polarizers, a polarization interference-type BPF can be constructed. We focused on an all-dielectric PCM consisting of a silicon chiral layer and a dielectric underclad layer on a silica substrate. Wavelength filtering characteristics with different bandwidths have been verified for several underclad materials such as Si3N4,Al2O3, and Si.
AB - We investigated the potential application of planar chiral metamaterials (PCMs) to near infrared wavelength filters for multispectral measurement through electromagnetic simulation. PCM assumed here was a two-dimensional sub-wavelength surface grating on a high index film with chiral unit cells. The PCM exhibits optical activity (OA) for normally incident light at a finite wavelength range. Thus, by sandwiching the PCM with a pair of linear polarizers, a polarization interference-type BPF can be constructed. We focused on an all-dielectric PCM consisting of a silicon chiral layer and a dielectric underclad layer on a silica substrate. Wavelength filtering characteristics with different bandwidths have been verified for several underclad materials such as Si3N4,Al2O3, and Si.
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U2 - 10.2528/PIERM17112707
DO - 10.2528/PIERM17112707
M3 - Article
AN - SCOPUS:85045677163
VL - 66
SP - 1
EP - 10
JO - Progress In Electromagnetics Research M
JF - Progress In Electromagnetics Research M
SN - 1937-8726
ER -