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Dual‐channel glucose concentration sensor based on coupled cross‐stacked gratings
Author(s) -
Li Rui,
Wang Qi,
Gao Xufeng,
Cao Shuhua,
Tao Chunxian,
Hong Ruijin,
Zhang Dawei
Publication year - 2021
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.32855
Subject(s) - dual (grammatical number) , materials science , channel (broadcasting) , optoelectronics , electronic engineering , computer science , telecommunications , engineering , art , literature
A dual‐channel glucose concentration sensor based on coupled cross‐stacked gratings is proposed. When the concentration of glucose solution is varied from 30 to 60 g/100 ml, the maximum values of the bulk sensitivity for peaks at longer and shorter resonance wavelength indicate approximately 615.57 and 262.94 nm/RIU, respectively. Therefore, the sensitivity of channel at longer wavelength is increased by 234.42% compared with that of the shorter wavelength. Advantageously, the dual‐channel sensor with different sensitivities can reduce measurement errors and noise effectively such as background noise and the fluctuation of the light source.