亚波长金属-介质独立式光栅中的导模共振用于带通滤波。
Guided mode resonance in subwavelength metallodielectric free-standing grating for bandpass filtering.
机构信息
ONERA The French Aerospace Lab, Chemin de la Hunière, F-91760 Palaiseau, France.
出版信息
Opt Lett. 2011 Aug 15;36(16):3054-6. doi: 10.1364/OL.36.003054.
PMID:21847157
Abstract
We present the experimental study of a free-standing metallic guided-mode resonant structure, for bandpass filtering applications in the mid-IR wavelength range. Structure consists of a subwavelength gold grating with narrow slits deposited on a silicon nitride membrane. High optical transmission is measured with up to 78% transmission at resonance. Angularly resolved spectra are presented revealing Fano-type resonance.
摘要
我们提出了一种自由支撑的金属导模共振结构的实验研究，用于中红外波长范围内的带通滤波应用。结构由沉积在氮化硅膜上的具有窄缝的亚波长金光栅组成。在共振时，测量到高达 78%的高光学透过率。给出了角分辨光谱，揭示了类 Fano 共振。
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