High confidence plasmonic sensor based on photonic crystal fibers with a U-shaped detection channel

Abstract

In order to improve the performance of optical fiber sensing and expand its application scenarios, a photonic crystal fiber (PCF) plasmonic sensor with a U-shaped detection channel based on the...

Active thermally tunable and highly sensitive terahertz smart windows based on the combination of a metamaterial and phase change material

“…Here they are expressed as ε D and ε M , respectively. 28 Furthermore, the Boltzmann function can be used to describe the relationship between f v and T as a function of f v as follows,where T 0 is the temperature at which the phase transition of the VO 2 film begins. T 0 during the heating and cooling processes is 341 K and 335 K, respectively.…”

“…Here they are expressed as ε D and ε M , respectively. 28 Furthermore, the Boltzmann function can be used to describe the relationship between f v and T as a function of f v as follows,…”

Tunable broadband absorber based on a layered resonant structure with a Dirac semimetal

“…It is worthwhile to design a reliable and excellent mid-infrared band absorber. [10][11][12] However, the current intermediate infrared radiation broadband absorber has some problems, such as being unable to maintain stability under different electromagnetic wave incidence angles, and it can also show polarisation incoherence. In order to meet actual needs, researchers urgently need to design a broadband absorber with excellent performance and to explore its absorption mechanism.…”

Highly sensitive plasmonic sensor based on eccentric-core photonic crystal fibers

“…Photonic crystal fibers (PCFs) are waveguides with photonic crystal properties formed by artificially introducing different periodic arrangements of low refractive index (RI) media into the fiber. Since the concept of PCFs was introduced by Russel in 1992 and accepted by a wide range of researchers, 1 many types of PCFs 2,3 have been introduced and used for broadband single-mode transmission, large-mode field transmission, and high sensitivity sensing due to the flexible design. With the demand for increasing information perception and the development of fiber optic functionality, the structures of PCFs are being designed and manufactured according to the desired function rather than the strict concept of a photonic crystal.…”