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Proceedings Paper

The trapezoidal nanostructure based surface plasmon resonance
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Paper Abstract

The surface plasmon erupted by bare metallic film has limitation of localizing high intensity field. Thus, nanostructures on the metallic film (such as nanowire, nanopost) have been used to enhance the Plasmon field by antenna effect. In the case of nanowire, field is highly localized at the sharpened edge of the nanowire. If there is an additional enhancing factor such as a gap between the edges of the nanostructures, area of highly localized field is formed. By adopting reversed trapezoidal structure, we expected to control area and intensity of highly localized plasmon field from both the nano-antenna effect and the gap plasmonic effect. So, we simulated trapezoidal nanowire structure changing the ratio of bottom length and top length of nanostructure. Then we can observe the variation of Plasmon field and intensity. In addition, we can obtain unusual result that the intensity of Plasmon field is highly reduced at specific ratio of bottom length and top length.

Paper Details

Date Published: 22 February 2017
PDF: 5 pages
Proc. SPIE 10077, Nanoscale Imaging, Sensing, and Actuation for Biomedical Applications XIV, 1007707 (22 February 2017); doi: 10.1117/12.2253523
Show Author Affiliations
Tae Young Kang, Pusan National Univ. (Korea, Republic of)
Don-Myeong Shin, Pusan National Univ. (Korea, Republic of)
Hyerin Song, Pusan National Univ. (Korea, Republic of)
Kyujung Kim, Pusan National Univ. (Korea, Republic of)


Published in SPIE Proceedings Vol. 10077:
Nanoscale Imaging, Sensing, and Actuation for Biomedical Applications XIV
Alexander N. Cartwright; Dan V. Nicolau; Dror Fixler, Editor(s)

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