Research on filtering characteristics of asymmetric photonic crystal fiber based on gold coating

Yan, Xin; Shen, Rongxu; Cheng, Tonglei; Li, Shuguang

doi:10.1016/j.optcom.2021.126860

Cited by 4 publications

(3 citation statements)

References 14 publications

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“…where λ is the wavelength of incident light incident, and Im[neff] is the imaginary parts of neff of each mode. The FV-FEM can be used to simulate the effective refractive index (neff) of the mode field of the proposed PCF, and the confinement loss (LC) of each mode of the proposed PCF can be described as following [41]   , 10 Im π 2 10 ln 20…”

Section: Design Of the Spr-pcf Ri Sensormentioning

confidence: 99%

A novel photonic crystal fiber refractive index sensor with ultra wide detection range based on surface plasmon resonance effect

Yuan

Qiu

et al. 2022

Optik

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Section: Design Of the Spr-pcf Ri Sensormentioning

confidence: 99%

A novel photonic crystal fiber refractive index sensor with ultra wide detection range based on surface plasmon resonance effect

Yuan

Qiu

et al. 2022

Optik

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“…In 2020, Carvalho et al investigated the plasmonic behavior of a fractal PCF for sensing and filtering, the 1600 μm-long PCF filter can achieve bandwidth of 60 nm and 284 nm at 1319 nm and 1474 nm [21]. In 2021, Yan et al reported an asymmetric PCF SPR polarization filter, when this filter length was 1mm, the maximum CT can reach 1322.7 dB, with operating bandwidth of >20 dB ranged from 1 to 2 μm [22]. In 2022, Yu et al proposed a PCF polarization filter with gold-wires coated by monocrystalline silicon, numerical results showed that the 3 mm-long filter possessed the maximum ER of 1449 dB at 1519 nm, and the working bandwidth of ER>20 dB can reach 405 nm [23].…”

Section: Introductionmentioning

confidence: 99%

Numerical analysis of an all-fiber plasmonic polarization filter using dual elliptical gold thin layers deposited photonic crystal fiber

Xu,

Liu,

Chen

et al. 2024

Phys. Scr.

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In order to solve the problems of high performance and small size incompatibility, as well as limited bandwidth, of traditional polarization filters in optical communication systems, this work presents an all-fiber polarization filter using dual elliptical gold layer deposited photonic crystal fiber by the finite element tool. The gold layers are plated on the inside of the two elliptical holes to create surface plasmon resonance effect, which cause the signal intensity in x-polarized direction to be much greater than that in y-polarized direction. The simulation results illustrate that when hole-to-hole pitch Ʌ is 2.0 μm, cladding hole diameter d1 is 2.0 μm, two inner-holes’ diameter d2 is 0.3 μm, spacing between two inner-holes ds is 0.755 μm, the major axis length of elliptical holes a is 2.0 μm, the minor axis length of elliptical holes b is 0.97 μm, the gold thin layer t is 100 nm, the proposed PCF filter exhibits good filtering performance at the communication wavelength of 1.55 μm, where the confinement loss in x- and y-polarized direction are 303.91 dB/cm and 0.06 dB/cm, respectively. The crosstalk and operating bandwidth improve with the increment of device’s length, the 800 μm-long PCF filter possesses the maximum crosstalk of -211.14 dB and the bandwidth of 600 nm. Finally, the experimental scheme is also discussed. We believe that this photonic filter can play a significant role in optical communication, optical sensing, spectral analysis, and other related fields.

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“…Here, we propose a novel photonic crystal fiber (PCF) fluorescence sensor which is developed based on an enzymelinked catalytic reaction for high-performance detection of LA enantiomers. Owing to its unique properties, PCF opens up new applications in nonlinear devices, fiber lasers, high-power transmission, and many other fields [33][34][35][36][37][38]. In addition to guiding light in a hollow core, PCF can be considered analogous to a bundle of capillary tubes with an inner diameter of several micrometers and has several essential advantages for assaying trace-amount samples [39][40][41].…”

Section: Introductionmentioning

confidence: 99%

A photonic crystal fiber–based fluorescence sensor for simultaneous and sensitive detection of lactic acid enantiomers

Chi

et al. 2022

Anal Bioanal Chem

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Graphical abstract A photonic crystal fiber (PCF)–based fluorescence sensor is developed for rapid and sensitive detection of lactic acid (LA) enantiomers in serum samples. The sensor is fabricated by chemical binding dual enzymes on the inner surface of the PCF with numerous pore structures and a large specific surface area, which is suitable to be utilized as an enzymatic reaction carrier. To achieve simultaneous detection of l -LA and d -LA, the PCF with an aldehyde-activated surface is cut into two separate pieces, one of which is coated with l -LDH/GPT enzymes and the other with d -LDH/GPT enzymes. By being connected and carefully aligned to each other by a suitable sleeve tube connector, the responses of both l -LA and d -LA sensors are determined by laser-induced flourescence (LIF) detection. With the aid of enzyme-linked catalytic reactions, the proposed PCF sensor can greatly improve the sensitivity and analysis speed for the detection of LA enantiomers. The PCF sensor exhibits a low limit of detection of 9.5 μM and 0.8 μM, and a wide linear range of 25–2000 μM and 2–400 μM for l -LA and d -LA, respectively. The sensor has been successfully applied to accurate determination of LA enantiomers in human serum with satisfactory reproducibility and stability. It is indicated that the present PCF sensors would be used as an attractive analytical platform for quantitative detection of trace-amount LA enantiomers in real biological samples, and thus would play a role in disease diagnosis and clinical monitoring in point-of-care testing. Supplementary Information The online version contains supplementary material available at 10.1007/s00216-021-03788-5.

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Research on filtering characteristics of asymmetric photonic crystal fiber based on gold coating

Cited by 4 publications

References 14 publications

A novel photonic crystal fiber refractive index sensor with ultra wide detection range based on surface plasmon resonance effect

A novel photonic crystal fiber refractive index sensor with ultra wide detection range based on surface plasmon resonance effect

Numerical analysis of an all-fiber plasmonic polarization filter using dual elliptical gold thin layers deposited photonic crystal fiber

A photonic crystal fiber–based fluorescence sensor for simultaneous and sensitive detection of lactic acid enantiomers

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