21 August 2009 Negative refraction in visible region using nano-structured metallo-dielectric photonic crystal
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An artificial engineered structure of nano-inclusion made of metallic nano-rods embedded in a dielectric (ε=12.96) matrix with hexagonal arrangement is proposed. New improved designed structure exhibits Negative Refraction (NR) in visible region by using surface plasmon wave in metallo-dielectric photonic crystal operating in a dispersion regime with anti-parallel refracted wave vector and Poynting vector. Finite Difference Time Domain (FDTD) simulations are carried out to study the reflection and transmission properties and obtained Far-field pattern. Designed structure gives NR with high transmission and act as a filter with a quality factor ≈ 102 with strong application potential in nano-optics and nano-technology.
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Monika Rajput, Monika Rajput, R. K. Sinha, R. K. Sinha, Swati Rawal, Swati Rawal, } "Negative refraction in visible region using nano-structured metallo-dielectric photonic crystal", Proc. SPIE 7420, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications III, 742009 (21 August 2009); doi: 10.1117/12.826048; https://doi.org/10.1117/12.826048

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