Incident ray refracts negatively at the interface of positive index medium and negative index medium.
At the interface of positive index medium and negative index medium, light will be negatively refracted and the energy and phase will flow in the opposite direction in the medium of negative index.
The evanescent wave is generated when light is totally reflected internally at the interface of different refractive indices.
This technique can greatly improve the image quality of soft tissues, particularly at the interface of tissues where the refractive index changes significantly.
In a channel waveguide without a low-index layer, the SPP mode is confined at the interface of the silver and the high-index slab (left inset, Figure 7(a)).
Optical Tamm (OT) modes formed at the interface of distributed-Bragg reflector (DBR) and low-index dielectric material, exhibit strong dispersive features at optical frequencies which gives rise to the possibility of designing refractometer with improved sensitivity.
The responsivity of modulation depth (1 f peak to peak amplitude divided by DC) to changes in the refractive index at the interface of the gold layer was simulated for different configurations.
The origin of the scattering can be attributed to total internal reflection at grain boundaries [5], fluctuations of refractive indexes at the interface of heterostructures [26], refractions among the grains [15], etc.
In this paper, we present the experimental and theoretical investigation of propagation properties of Bloch surface waves, for example propagation length and refractive index of the surface mode, at the interface of a dielectric multilayer platform.
"My work is at the interface of chemistry and biology.
With spatially periodic refractive index, the PC structure is one of the most promising approaches to efficiently reduce the loss caused by the total internal reflection at the interface of the GaN and the air [3-7].
