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Proceedings Paper

Extraordinary transmission-based super-resolved axial imaging using subwavelength metallic nanoaperture arrays
Author(s): Wonju Lee; Youngjin Oh; Jong-Ryul Choi; Kyujung Kim; Donghyun Kim
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Paper Abstract

A super-resolved axial imaging technique was investigated based on extraordinary transmission (EOT) of light using metallic gradient nanoaperture arrays. Light through subwavelength nanoapertures at thick metal film can be transmitted and amplified by several orders of magnitude due to plasmonic coupling. Here, the feasibility of EOT-based axial imaging with super resolution is explored. Since light penetration of EOT is much deeper than that of evanescent waves, the axial range to obtain the distance information of fluorescence signals can be extended by EOT. The axial distribution of ganglioside in mouse macrophage cells was measured with sub-diffraction-limited resolution after reconstruction using differential fluorescence excitation on gradient aperture arrays.

Paper Details

Date Published: 19 March 2015
PDF: 5 pages
Proc. SPIE 9337, Nanoscale Imaging, Sensing, and Actuation for Biomedical Applications XII, 93370A (19 March 2015); doi: 10.1117/12.2078053
Show Author Affiliations
Wonju Lee, Yonsei Univ. (Korea, Republic of)
Youngjin Oh, Yonsei Univ. (Korea, Republic of)
Jong-Ryul Choi, Daegu-Gyeongbuk Medical Innovation Foundation (Korea, Republic of)
Kyujung Kim, Pusan National Univ. (Korea, Republic of)
Donghyun Kim, Yonsei Univ. (Korea, Republic of)

Published in SPIE Proceedings Vol. 9337:
Nanoscale Imaging, Sensing, and Actuation for Biomedical Applications XII
Alexander N. Cartwright; Dan V. Nicolau, Editor(s)

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