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Journal of Lasers, Optics & Photonics

ISSN: 2469-410X

Open Access

Optical Fiber Surface Plasmon Sensor: Theoretical Approach to Detect Viral Aerosols

Abstract

Sushil Kumar*, Gulab Chand Yadav, Chandan Singh Yadav, Abhishek Upadhyay, Gaurav Sharma, Vivek Singh and Abhay Kumar Singh

The rapid and precise detection of viral aerosol has received considerable attention to prevent airborne diseases. In these days, coronavirus disease and its detection has become a common subject in the worldwide. The study is proposed to the detection of viral aerosol by surface plasmon resonance techniques. In this paper, design and optimization of a surface plasmon resonance sensor based on polymer optical fiber for detection of noval coronavirus is theoretically presented and validated. Here, S-glycoprotein antigen is considered as the marker of covid. The dependency of resonance wavelength of surface plasmon sensor on numerical aperture and refractive index of optical fiber is obtained using ray approach. It is observed that low refractive index core and high numerical aperture of optical fiber waveguide provides the better performance to the detection of viral aerosol. The propagation wavelength, propagation length, penetration depth in metal and aqueous media are also calculated and found 1.475 μm, 81.046 μm, 0.2672 μm, 2.059 μm respectively at 2.0 μm incident wavelength.

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Citations: 279

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