TY - JOUR
T1 - Near-field spectroscopic properties of complementary gold nanostructures
T2 - Applicability of Babinet's principle in the optical region
AU - Mizobata, Hidetoshi
AU - Ueno, Kosei
AU - Misawa, Hiroaki
AU - Okamoto, Hiromi
AU - Imura, Kohei
N1 - Funding Information:
This work was supported in part by JSPS KAKENHI Grant Nos. JP22225002, JP23225006, JP26107001, JP26107003, JP26620018, JP26286029, JP15H01073, JP15H00856, JP15H02161, JP16H06505, JP16H04100 in Scientific Research on Innovative Areas "Photosynergetics" from the Japan Society for the Promotion of Science. The work was also supported in part by the Nanotechnology Platform Program (Hokkaido University), and Dynamic Alliance for Open Innovation Bridging Human, Environment and Materials (Five- Star Alliance) of the Ministry of Education, Culture, Sports, Science, and Technology (MEXT), Japan.
Publisher Copyright:
© 2017 Optical Society of America.
PY - 2017/3/6
Y1 - 2017/3/6
N2 - We examine the far-field and near-field properties of complementary screens made of nanostructured gold thin films, a rectangular nanowire and a nanovoid, using an aperturetype scanning near-field optical microscope and electromagnetic field calculations, and discuss the applicability of Babinet's principle in the optical region. The far-field transmission spectra of the complementary screens are considerably different from each other. On the other hand, genuine near-field extinction spectra exhibit nearly complementary characteristics. The spatial features of the observed near-field images for the complementary screens show little correlation. We have found from the Fourier analysis of the simulated images that high spatial-frequency components of the electromagnetic fields show mutual spatial correlation. These results suggest that Babinet's principle is applicable to the high spatial-frequency components of electromagnetic fields for the complementary screens.
AB - We examine the far-field and near-field properties of complementary screens made of nanostructured gold thin films, a rectangular nanowire and a nanovoid, using an aperturetype scanning near-field optical microscope and electromagnetic field calculations, and discuss the applicability of Babinet's principle in the optical region. The far-field transmission spectra of the complementary screens are considerably different from each other. On the other hand, genuine near-field extinction spectra exhibit nearly complementary characteristics. The spatial features of the observed near-field images for the complementary screens show little correlation. We have found from the Fourier analysis of the simulated images that high spatial-frequency components of the electromagnetic fields show mutual spatial correlation. These results suggest that Babinet's principle is applicable to the high spatial-frequency components of electromagnetic fields for the complementary screens.
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U2 - 10.1364/OE.25.005279
DO - 10.1364/OE.25.005279
M3 - Article
C2 - 28380791
AN - SCOPUS:85015689025
SN - 1094-4087
VL - 25
SP - 5279
EP - 5289
JO - Optics Express
JF - Optics Express
IS - 5
ER -