Design and optimization of photonic crystal fiber based sensor for gas condensate and air pollution monitoring

Abstract

Abstract:In this paper, a hexagonal shape photonic crystal fiber (H-PCF) has been proposed as a gas sensor of which both micro-structured core and cladding are organized by circular air cavities. The reported H-PCF has a single layer circular core which is surrounded by a five-layer hexagonal cladding. The overall pretending process of the H-PCF is completed by using a full vectorial finite element method (FEM) with perfectly matched layer (PML) boundary condition. All geometrical parameters like diameters and pitches of both core and cladding regions have fluctuated with an optimized structure. After completing the numerical analysis, it is clearly visualized that the proposed H-PCF exhibits high sensitivity with low confinement loss. The investigated results reveal the relative sensitivity of 56.65% and confinement loss of 2.31×10 5 dB/m at the 1.33-m wavelength. Moreover, effective area, nonlinearity, and V-parameter of the suggested PCF are also briefly described.

Photonic Crystal Enhanced Fluorescence: A Review on Design Strategies and Applications

“…The cross-section of these fibers has the characteristic periodic refractive index that serves to create the PBG (see Figure 3 a–c for some examples). These have been reported in an array of geometries for guidance of light from UV [ 135 ] to near-IR light [ 136 ] through media such as gases [ 137 ], liquids [ 138 ], and hydrogels [ 139 ]. While there are many sensing modalities that benefit from these fibers [ 140 ], in this review, we will focus on fluorescence detection and enhancement.…”

Reduction of effective material loss (EML) using decagonal photonic crystal fiber (D-PCF) for communication applications in the terahertz wave pulse

“…Where, Aea is the effective area and intensity electric field is the I(e) = |Ee| 2 PF is indicated that the most amount of power flowing in the core area of the D-PCF structure.…”

“…The gray area exists within the situation of ultraviolet radioactivity and the microwave range. The huge THz occurrence has applications in a variety of fields such as detection [1][2], biomedical tomography [3], transport network [4], bioengineering [5], time-domain spectrometry [6], brininess [7], infection sensor [8], security screening [9] applications. It also makes significant advances in the roots and documentation systems of the THz wave.…”

Design and analysis of heptagonal cladding with rotated-hexa elliptical core based PCF for the applications of communication sectors in the THz region

“…Tray area lies within the context of the infrared radiation (IR) and microwave spectrum. The enormous THz frequency is potential in diverse areas like sensing [1][2], biomedical imaging [3], communications [4], biotechnology [5], time-domain spectroscopy [6], salinity [], temperature sensor [7], security screening [8] applications. It also provides significant developments in origins and identification methods of THz wave.…”