Journal
OPTICAL AND QUANTUM ELECTRONICS
Volume 54, Issue 3, Pages -Publisher
SPRINGER
DOI: 10.1007/s11082-022-03607-w
Keywords
Photonic crystal fiber; Surface plasmon resonance; Optical sensitivity
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This study designs a gold and silver coated multi-channel photonic crystal fiber based surface plasmon resonance sensor structure for simultaneous detection of a wide range of refractive indices. Bending analysis and sensitivity performance evaluation show that bending enhances the sensitivity of the y-polarized mode while the x-polarized mode remains almost unchanged. Spectral analysis further demonstrates that the sensitivity performance of the bent structure can be improved up to 50% by bending. This proposed structure is capable of detecting analytes between 1.33-1.36 RIs and has great potential in biomedical and biochemical applications.
A gold and silver coated multi-channel photonic crystal fiber based surface plasmon resonance sensor structure is designed and numerically investigated for simultaneous detection of wide range of refractive indices. Bending analysis and overall sensitivity performance of designed sensor is studied by employing both spectral and amplitude methods. Numerical results show that sensitivity performance of y-polarized mode is enhanced by bending, where x-polarized mode is almost remains. Results of spectral method have shown that sensitivity performance of the bent structure can be improved up to 50% by bending. The proposed structure is capable of detecting analytes between 1.33-1.36 RIs and has great potential in biomedical and biochemical application.
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