Porous-Core Hexagonal Photonic Crystal Fiber for Chemical Sensing

We propose a hybrid micro modelled porous-core hexagonal-shaped photonic crystal fibre (PHPCF) for chemical sensing. The suggested PHPCF uses five layers of air holes rings in the area of cladding and one layered air hole whose shaped is elliptical in the central vicinity. Our proposed PHPCF represents high relative sensitivity (S-R) and small confinement loss (C-L) throughout a spectral region between 0.8 mu m to 2 mu m. Numerical analysis is done by finite element method based technique where boundary condition is perfectly-matched-layer. The suggested PHPCF represents maximum sensitivity of 82.96%, 85.17%, and 87.30% for three dissimilar chemicals such as water, ethanol, and benzene, respectively. Moreover, 5.20 x 10(-10) dB/m, 3.91x 10(-10) dB/m, and 1.52x 10(-10 )dB/m C-L are determined when 1.55 mu m wavelength is used. The newly proposed sensor has the ability to sense low refractive index chemicals which are essentials for industrial areas.

Automated summary

A hybrid micro modelled porous-core hexagonal-shaped photonic crystal fibre with high sensitivity and low confinement loss for chemical sensing in the spectral region between 0.8 μm to 2 μm is proposed. Numerical analysis shows high sensitivity for water, ethanol, and benzene, with determined confinement losses at 1.55 μm wavelength. This newly proposed sensor has the ability to detect low refractive index chemicals essential for industrial areas.