Multiple Pass‐Band Optical Left‐Handed Metamaterials Based on Random Dendritic Cells

Abstract

Left‐handed metamaterials (LHMs) composed of random dendritic cells demonstrate a multi‐band resonance and negative refractive index. A nano‐assembly approach is established to fabricate optical LHMs. Random nanostructures of silver dendritic cells are prepared and further fabricated into a sandwich‐like structure with a dielectric medium. The dentritic nano‐assembled configuration reveals a multi‐band resonance and a high intensity of the pass‐band at infrared frequencies, and can be facilely and cheaply prepared on a large‐scale of effective area.

Slowing down light using a dendritic cell cluster metasurface waveguide

“…In 2008, Liu et al . confirmed that dendritic structure can achieve negative ε and μ meanwhile in infrared29. The metasurface was proposed in 2011.…”

Visible Light Metasurfaces Assembled by Quasiperiodic Dendritic Cluster Sets

“…A bottom‐up electrochemical deposition method is used to prepare the dendritic cluster set surface structure. (The schematic of preparation process is displayed in Figure a.…”

Manipulation of visible-light polarization with dendritic cell-cluster metasurfaces

“…Theory and experiment have proved that dendritic structure is actually a combination of rod and split ring, negative ε and negative μ can simultaneously be achieved in microwave or infrared 13 , 36 . And with the concept of metasurface proposed in Science 15 , the authors use eight basic elements of the rod and V-shaped to achieve generalized Snell’s law.…”