Chinese Optics Letters, 2012, 10 (s1): S13102, Published Online: Jun. 19, 2012
Terahertz-metallic aperture arrays designing Download: 603次
310.6845 Thin film devices and applications 310.6628 Subwavelength structures,nanostructures 240.0240 Optics at surfaces
Abstract
A Terahertz sensing method based on the resonant transmission characteristics through metallic aperture arrays is proposed. Here we present metallic aperture arrays of rectangular and H-shaped holes which induce localized resonance. High characterization sensitivity to surface condition is demonstrated. When applied with the liquid of 3-pentanone, arrays of rectangular and H-shaped holes have sensitivity of 158 and 172 GHz/RIU (refractive index unit), respectively. So the metal meshes based localized resonance can also be used as a sensor chip in terahertz region.
Binbin Li, Shengmei Yan, Wei Xiong, Jingling Shen, Jun Yao. Terahertz-metallic aperture arrays designing[J]. Chinese Optics Letters, 2012, 10(s1): S13102.