WebThe grating equation is d ( sin θ i + sin θ o) = ν λ, where d is the distance between lines of the grating, λ is the wavelength of the light, θ i is the angle of incidence, and θ o is the angle of the outgoing beam. In the above … WebApr 1, 2024 · According to the theory of plasmon hybridization, when the distance between the metal NPs and the metal grating is very small, the surface plasmon modes will interact with each other and produce a hybrid mode, that is, plasmon coupling, which can be described by the two-dipole oscillation model in classical theory [21].
Large positive and negative Goos-Hänchen shifts near the surface ...
WebAbstract: We propose and numerically analyze surface plasmon Bragg gratings formed by a periodic variation of the width of the insulator in a metal-insulator-metal … WebJan 12, 2024 · In this paper, we propose and demonstrate a high-performance mercury ion sensor with sub-nM detection limit, high selectivity, and strong practicability based on the small molecule of the 4-mercaptopyridine (4-MPY) modified tilted fiber Bragg grating surface plasmon resonance (TFBG-SPR) sensing platform. The TFBG-SPR sensor has … geography topics year 7
Refractive index sensitivity characterization of tilted fiber …
WebApr 5, 2024 · Abstract: We have systematically investigated the refractive index (RI) sensing characterization of tilted fiber Bragg grating (TFBG) based surface plasmon resonance … WebJan 1, 2024 · Fiber optic SPR (Surface Plasmon Resonance) sensor based on MMF-FBG-MMF (Multi-mode Fiber–Fiber Bragg Grating–Multi-mode Fiber) structure has been … WebSurface plasmon resonance (SPR) optical-fiber sensors attracted much attention in recent decades. Compared with other optical-fiber sensors, SPR sensors have superior performance indicators, such as ultrahigh sensitivity and resolution, as well as simple and multifarious structures. ... FBG—fiber Bragg grating; LPFG—long-period fiber ... geography topography icse class 10