D-Shaped Photonic crystal fiber Plasmon sensors based on self reference channel

We present a D-shaped photonic crystal fiber (PCF) plasmon sensor based on a large-hole self-reference channel for applications in biological and chemical sensing. Both the Plasmon's fundamental linear-polarization LP01 and high-order LP11 modes are excited at the interface between the analyte...

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Bibliographic Details
Published in:IEEE photonics technology letters 2020-05, Vol.32 (10), p.1-1
Main Authors: Zhou, Cheng, Zhang, Hai-kun, Song, Peng, Wang, Jing, Zhu, Cun-guang, Wang, Peng-peng, Peng, Feng
Format: Article
Language:English
Subjects:
biological and chemical sensors
Chemical and biological sensors
Crystal fibers
fiber optics sensors
Film thickness
microsensors
Optical fiber sensors
Photonic crystal fibers
Photonic crystals
Plasmons
Refractivity
Sensitivity
Sensors
Silver
Spectra
Spectral sensitivity
surface plasmon resonance
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Summary:We present a D-shaped photonic crystal fiber (PCF) plasmon sensor based on a large-hole self-reference channel for applications in biological and chemical sensing. Both the Plasmon's fundamental linear-polarization LP01 and high-order LP11 modes are excited at the interface between the analyte and the silver film based on results of the numerical calculation method. We obtained the transmitted spectrum of the guided mode LP01 in the D-shaped PCF. We found that the peak spectral wavelength of the sensor increases when the refractive index of the analyte increases. The spectral sensitivity clearly increases with the silver film's thickness on the sensor's platform, although it is unaffected by other variations of the PCF's geometry. We obtained an optimal spectral sensitivity for the sensor of 3191.43nm/RIU for a silver film thickness of 50nm.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2020.2985961