Chinese Optics Letters, 2015, 13 (2): 020501, Published Online: Sep. 25, 2018
Free space optical beam coupled to surface plasmonic polariton waves via designed grooves in metal film 
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Figures & Tables
Fig. 1. Schematic of the surface electromagnetic wave hologram. (a) The writing process, where metal surface is an x − y
Fig. 2. Design of the groove pattern used to couple a plane wave in free space to a focusing SPP wave on a metal surface. Panels (a)–(d), (e)–(h), and (i)–(l) are for the incident angles θ = 0 ° θ = 15 ° θ = 30 ° x − y x − z y = − 8 μm
Fig. 3. Influence of groove depth and incident angle on the coupling efficiencies. (a) Groove depth h. (b) Incident angle θ
Fig. 4. Design of the groove pattern used to couple a plane wave to dual-points SPPs on a metal surface. For θ = 0 ° x − y x − z y = − 8 μm θ = 15 ° x − y x − z y = − 8 μm θ = 0 ° θ = 15 °
Yuegang Chen, Zhiyuan Li. Free space optical beam coupled to surface plasmonic polariton waves via designed grooves in metal film[J]. Chinese Optics Letters, 2015, 13(2): 020501.
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