naa a22 4500 510817025 CHVBK 20180411083512.0 cr unu---uuuuu 180411e20130601xx s 000 0 eng 10.1007/s11468-012-9402-0 doi (NATIONALLICENCE)springer-10.1007/s11468-012-9402-0 Free-Space Plasmonic Filter with Dual-Resonance Wavelength Using Asymmetric T -Shaped Metallic Array [Elektronische Daten] [Chih-Ming Wang, Chih-Jui Yu] In this study, we propose a plasmonic free-space filter with dual resonance wavelength by using an asymmetric T-shaped array. The structure under the T-shaped structure forms two metal/insulator/metal cavities with different cavity length. Each cavity supports a specific resonance wavelength. A notch filter for second harmonic generation Nd:YAG laser is also proposed. The filter offers two resonance dips and low sideband. In addition, the filter properties are based on the localized surface plasmon. Therefore, the angle tolerance is extremely high. This makes the proposed structure easy to align. The proposed structure can be used in dual wavelength biosensing detection and dual wavelength thermal emission applications. Springer Science+Business Media, LLC, 2012 Surface plasmons nationallicence Subwavelength structures nationallicence Optical filter nationallicence Wang Chih-Ming Department of Opto-electronic Engineering, National Dong Hwa University, 97401, Hualien, Taiwan aut Yu Chih-Jui Department of Opto-electronic Engineering, National Dong Hwa University, 97401, Hualien, Taiwan aut Plasmonics Springer US; http://www.springer-ny.com 8/2(2013-06-01), 385-390 1557-1955 8:2<385 2013 8 11468 https://doi.org/10.1007/s11468-012-9402-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11468-012-9402-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wang Chih-Ming Department of Opto-electronic Engineering, National Dong Hwa University, 97401, Hualien, Taiwan aut NATIONALLICENCE 700 1- Yu Chih-Jui Department of Opto-electronic Engineering, National Dong Hwa University, 97401, Hualien, Taiwan aut NATIONALLICENCE 773 0- Plasmonics Springer US; http://www.springer-ny.com 8/2(2013-06-01), 385-390 1557-1955 8:2<385 2013 8 11468 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer