Abstract
We present numerical simulations in order to investigate the resonances in reflection, transmission, and absorption of surface plasmons for triangular gratings. The results reveal a number of resonances depending of grating geometrical parameters, surface materials, and characteristics of incident light. For metals Cu, Ag, Au, Ni, Pd, and Pt, the intensive weakly flat grating-resonance at TM-polarized incident light under normal direction is at wavelength \(\lambda = 0.83 \pm 0.01\,\upmu{\text{m}}\), and a weaker grating resonance is at wavelength around \(0.46\,\upmu{\text{m}}\). For strongly flat grating weak resonances appear for some metals, and disappear for others.
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Sassi, I., Dhibi, A. & Oumezzine, M. Resonances in reflection, transmission and absorption of 1-D triangular-relief metallic gratings. Indian J Phys 91, 149–155 (2017). https://doi.org/10.1007/s12648-016-0910-1
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DOI: https://doi.org/10.1007/s12648-016-0910-1