Figure 3
From: Slowing down light using a dendritic cell cluster metasurface waveguide
GH shift measurements for the K9 crystals and double-layer silver dendritic structure metasurfaces.
The middle of the brightest interference fringe is labelled 0, and the upward and downward interference fringes are labelled ±1, ±2, and ±3, with the upward and downward cases represented by ‘+’ and ‘−’, respectively. The interference fringes were recorded when the analyser P2 was at 45° and 135°. The angle of incidence is 45°. The incident light wavelength is 632.5 nm. (a) GH shift of the K9 crystal sample. (b) GH shift of the silver-layer dendritic structure metasurface. (c) GH shift of the silver dendritic structure metasurface with an incident light wavelength of 532 nm. (d) GH shift values of different samples at different incident angles (approximately 25° to 60°).
