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201971 · Therefore, the PCF gas sensors are dependent on porous Core with air holes where the light can interact well with the studied gas . Further, gas sensor can be utilized for conserving the quality of air for our ambience and to detect noxious, explosive and hydrocarbon gases . PCFs based gas sensors have structural and manufacturing flexibility ...
2021720 · These requirements of a nonlinear optical sensor with low attenuation constant can be achieved in hollowcore photonic crystal fiber (HCPCF). Gasfilled HCPCF exhibits optical nonlinearity for an ultrashort temporal and spectral broadening of NIR pulses [1], [2]. The nonlinearity in HCPCF can be achieved by tuning the gas pressure.
So, HCPCF [33,34] offers the better sensing performance than solidcore PCF (SCPCF) [35] and porouscore PCF (PCPCF) [36,37]. The central air hole of proposed HCPCF is filled with CO 2 and ...
Here, a unique structure of porous core photonic crystal fiber (PCF) sensor with a high sensitivity for gas detection is proposed. The dependences of the mode field distribution and the propagation loss of PCF sensor on the porosity are studied to optimize for a higher sensitivity. For the optimal PCF with a porosity of 50%, the mode field is ...
2021119 · A novel porous core photonic crystal fiber (PCF) sensor is reported for labelfree detection of different concentrations of ethylene glycol present in aqueous solution, over a wavelength range from 1 to 2 μm. Both core and cladding are designed with elliptical air holes, which are arranged in a hexagonal structure with TOPAS as the background material. Various geometrical parameters are ...
Fabrication and characterization of a highly sensitive surface plasmon resonancebased fiber optic sensor for the detection of low concentrations of ammonia gas have been reported. The sensor probe is fabricated by coating an unclad core of the optical fiber with successive layers of indium tin oxide (ITO) and bromocresol purple (BCP). Increase in the concentration of ammonia gas around the ...
2020121 · Fig. 2 shows the crosssectional view of RSPCPCF. There are three parts of this design; core, cladding and perfectly matched layer (PML). The octagonal core comprises of silica material and the seven rectangular slotted air holes which will be filled with CO 2 gas. The core porosity of this design is chosen as 55%.
202191 · Last few decades PCF and other sensors. Several research groups have designed a number of porus core based PCF using the terahertz waveguides but none of them have been deployed for sensing purpose in this frequency region , , , , , . In 2002, Hoo et al. designed a microstructured PCF for sensing applications.
2021417 · Hollow core photonic crystal fiber is suggested and analyzed in this article for the identification of different blood components present in human blood. In order to visualize the fiber and investigate the performance of that sensor based on COMSOL simulation software, the suggested fiber is numerically analyze in terahertz frequency spectrum from to 3 THz to obtain higher relative ...
2017214 · This paper presents a gas sensor based on octagonal geometric structured hollow core photonic crystal Fiber. We have studied the optical properties of the proposed PCF numerically by full vector finite element method (FEM) using COMSOL Multiphysics. The octagonal lattice of the hollow core PCF has been optimized to obtain better relative sensitivity and low confinement loss. We have …
The suspended ringcore PCF is made by the stackanddraw technique with a large central capillary of ~60 μm and adapted small capillaries in a larger cladding tube. Sensing capabilities of two variations of the proposed suspended ringcore PCFs were investigated experimentally by detecting absorption lines of acetylene gas.
A novel, rectanglebased, porouscore photonic crystal fiber (PCF) has been modeled for the efficient propagation of a THz wave. The performance of the anticipated model has been assessed using the finite element method (FEM) in the range of – THz. Both the fiber core and cladding are modeled with rectangular air holes. Numerical analysis for this model reveals that the model has a ...
20171120 · A novel highly sensitive porous corephotonic crystal fiber (PCPCF) has been designed and analyzed for detection of chemical analytes in the terahertz frequency range. The PCPCF is designed using rectangular structured air holes in the core with a kagome structured cladding. The full vectorial finiteelement method is used to tune the geometrical parameters and to characterize the …
We have demonstrated and analyzed the methane gas sensor based on octagonal cladding and hexagonal hybrid porous core photonic crystal fiber (HPCPCF) for gas detection purpose. The proposed design of HPCPCF has been numerically investigated by COMSOL Multiphysics software through utilizing the full vectorial finite element method (FEM).
2020121 · The PCF based sensors have been employed for diverse sensing applications like gas sensor [22,23], chemical sensor [, , ], biosensor [27,28], temperature sensor [29,30] and pressure sensor [31,32]. The structure of PCF is made by silica material and array of air holes that is continuously routing along the complete length of the fiber [ 24 ].
This paper presents the design and simulation of hybrid porous core photonic crystal fiber (HPCPCF) for monitoring nitrous oxide (N2O) gas. The design, numerical simulation and optimization ...
2021217 · A systematic comparison of fiberbased gas pressure sensors using different types of hollowcore photonic crystal fibers (PCFs) is conducted. The sensor was fabricated by splicing a segment of hollowcore silica capillary between a single mode fiber (SMF) and a hollowcore PCF. A FabryPerot (FP) cavity configuration is thus formed with the capillary tube as the sensing cavity, while the PCF ...
IEEE Photonics Journal Lowloss and Highly Birefringent PorousCore PCF [18] E. ReyesV era, E. GonzalezValencia, and P . T orres, “Understanding the birefringence effects in an allfiber device
200821 · The gas sensing properties of indexguided photonic crystal fiber (PCF) with aircore are investigated via fullvector finite element method. The relationships between the gas sensing properties of indexguided PCF with aircore and the fiber parameters, including the fiber length and the operating wavelength, have been discussed.
The suspended ringcore PCF is made by the stackanddraw technique with a large central capillary of ∼60 μm and adapted small capillaries in a larger cladding tube. Sensing capabilities of two variations of the proposed suspended ringcore PCFs were investigated experimentally by detecting absorption lines of acetylene gas.
After the simulation proce dure, our proposed lowloss PCF (LPCF) fiber shows a low effective material loss of cm1, with power fraction (PF) in the core area of 80% and a large effective ...
Journal of Northeastern University Natural Science ›› 2017, Vol. 38 ›› Issue (12): 16731676. DOI: / • Information Control • Next Articles Reflective Gas Sensor Based on Hollow Core Photonic Crystal Fiber
PDF | On Jan 1, 2019, Md. Ranju Sardar and others published Methane Gas Sensor Based on Microstructured Highly Sensitive Hybrid Porous Core Photonic Crystal Fiber | Find, read and cite all the ...
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