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- Title
Sulfuric Acid Highly Sensitive Detection at Different Concentrations Using Photonic Crystal Fiber Sensor.
- Authors
Jebur, Raed Sattar; Thaher, Raad Hamdan
- Abstract
This paper presents a new PCF sensor developed explicitly for accurately detecting sulfuric acid. A complete vector finite element technique (FEM) in COMSOL Multiphysics was used to evaluate the optical parameters of the sensor, including its refractive index, power fraction, relative sensitivity, confinement loss, and effective area. The sensor demonstrated excellent sensitivity and minimal confinement loss during testing with different concentrations of aqueous sulfuric acid ranging from 0% to 40%. The PCF sensor demonstrated outstanding performance at a wavelength of 1.5 μm, with the incident light's polarization in the x-direction, which enhances evanescent field interaction by confining nearly all optical power within an enlarged air core, boosting sensitivity to analytes compared to the y-polarized mode. The test's sensitivity was high when exposed to different concentrations of sulfuric acid, ranging from 0% to 40%. The sensitivities recorded were 99.55%, 99.72%, 99.82%, 99.90%, and 99.97% for acid concentrations of 0%, 10%, 20%, 30%, and 40% respectively. In addition, the sensor's losses due to confinement were measured and recorded. The recorded values for the different concentrations were 3.04x10-11 dB/m, 4.65x10-11 dB/m, 6.99x10-11 dB/m, 8.52x10-11 dB/m, and 9.65x10-11 dB/m. The PCF sensor exhibits exceptional sensitivity and dependability in detecting sulfuric acid over various concentrations, rendering it a valuable tool for environmental monitoring, industrial safety, and health preservation.
- Subjects
PHOTONIC crystal fibers; SULFURIC acid; OPTICAL polarization; DETECTORS; INDUSTRIAL safety
- Publication
International Journal of Safety & Security Engineering, 2024, Vol 14, Issue 2, p459
- ISSN
2041-9031
- Publication type
Article
- DOI
10.18280/ijsse.140213