Numerical study on the biosensing in mid-infrared based on multiple Fano-resonance plasmonic waveguide

Dong, Shiqing; Liu, Hongchao; Zheng, Yun; Zhang, Jun; Xia, Shiqiang; Dong, Chao; Shen, Kesheng; Deng, Chunyu; Luo, Wenyuan; Su, Mengxue; Sun, Jie; Zhang, Cheng; Lu, Hai

doi:10.1016/j.ijleo.2022.170042

Cited by 9 publications

(7 citation statements)

References 36 publications

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“…And the relationship between the temperature and refractive index of ethanol was simplified by the following equation, and the T was the temperature of ethanol. [ 27 ]

n_{ethanol} = 1.36084 - 3.84 \times 10^{- 4} (T - 20 ° C)

…”

Section: Structure and Theorymentioning

confidence: 99%

High‐Sensitivity Thin‐Film Grating Absorbers for Sensing Applications

Sun

Shen

Zheng

et al. 2023

Physica Status Solidi (b)

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Herein, based on the finite‐element calculation method, a high‐sensitivity infrared absorption sensor is designed with ZnSe as the substrate, Mo as the waveguide layer and periodic grating, and Ge as the thin film. The absorption performance of the structure is not sensitive to the polarization of the incident light when the transverse‐magnetic light wave is perpendicular to the structure. The thickness of the Ge thin film and the width of the grating column are the main factors for determining its absorption and sensing performance. The optimized structure is sensitive to the refractive index on the grating. Herein, a correspondence between the refractive index change and the position of the peak of the absorbance spectrum is established. When this structure is used as a refractive index sensor, the sensitivity can reach 2300 nm RIU−1 with a high figure of merit of 37.09. In addition, temperature sensing in ethanol shows that the waveguide can quantify the solution temperature by resonance. It is demonstrated in the results that the grating absorber has great potential applications in biomedical sensing.

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“…And the relationship between the temperature and refractive index of ethanol was simplified by the following equation, and the T was the temperature of ethanol. [ 27 ]

n_{ethanol} = 1.36084 - 3.84 \times 10^{- 4} (T - 20 ° C)

…”

Section: Structure and Theorymentioning

confidence: 99%

High‐Sensitivity Thin‐Film Grating Absorbers for Sensing Applications

Sun

Shen

Zheng

et al. 2023

Physica Status Solidi (b)

Self Cite

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“…Ring resonators are utilized in MIM waveguide-based studies such as band-pass filters, biosensors, and logic gates [38][39][40]. Wang et al designed a band-pass filter that allows optical signals to flow in the waveguide at specific wavelengths [38].…”

Section: Introductionmentioning

confidence: 99%

Multiple ultra-narrow band-stop filters based on MIM plasmonic waveguide with nanoring cavities

Korkmaz

2024

Phys. Scr.

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In this work, multiple ultra-narrow band-stop filters based on metal–insulator–metal (MIM) plasmonic waveguide filters with high efficiency are designed and analyzed numerically. The relationship between incident radiation and transmission spectra is investigated between 0.45 μm and 1.5 μm in the electromagnetic spectrum by finite-difference time-domain (FDTD) method. The designed structures have a bus waveguide coupled with nanoring cavity resonators of different sizes. Minimum transmission is 1.3% at 622 nm. The full width at half maximum (FWHM) is 8.64 nm and the quality factor is obtained as 72.33 in this wavelength. The highest quality factor is 185.48 and the lowest FWHM is 4.2 nm at 779 nm. The designed waveguide-based filters can be used for integrated optical devices from visible to near-infrared regimes.

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“…Optical waveguide has several advantages compared to optical fiber, including being able to be realized in the form of a chip, having high transparency and low power loss [17]. Various optical waveguide sensor designs for RI measurement have been proposed, such as multimode interference waveguide [18], two-layer waveguide gratings [19], photonic crystal waveguide cavity [20], Mach-Zehnder interferometer with a double slot waveguide [21] and metal-insulator-metal based Fano resonance [22]. A high sensitivity waveguide-based RI sensor has been reported by Saha et.al [23].…”

Section: Introductionmentioning

confidence: 99%

Unsaturated polyester resin/polymethylmethacrylate waveguide-based refractive index sensor with dual-wavelength temperature compensation

Yulianti

Marwoto

Astuti

et al. 2023

Meas. Sci. Technol.

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This paper demonstrates an optical waveguide based- refractive index (RI) sensor using temperature compensation method. The optical waveguide was formed using a polymethylmethacrylate (PMMA) sheet as the cladding material and unsaturated polyester resin (UPR) as the core material. The sensor design consists of two input waveguide branches, a sensing area and an output branch. Two light emitting diodes (LEDs) with wavelength of 530 nm and 660 nm were used as light sources. In this work, temperature compensation was done by dual-wavelength technique in which RI and temperature sensitivities were measured at two different wavelengths at 530nm and 660nm. Based on the RI and temperature sensitivities, temperature compensation was implemented. Experimental findings indicated that the average relative error of the uncompensated measurement using the light source of 530nm and 660nm were 0.4372% and 0.2749 %, respectively. Meanwhile, the average error of the temperature compensation method was 0.0344 %. Hence, the temperature compensation method provides measurement error up to 92% lower compared to the uncompensated method. As such, the proposed dual-wavelength compensation method could effectively improve the RI measurement accuracy.Keywords: Optical waveguide, polymethylmethacrylate, polyester resin, refractive index sensor, dual-wavelength, temperature compensation

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Numerical study on the biosensing in mid-infrared based on multiple Fano-resonance plasmonic waveguide

Cited by 9 publications

References 36 publications

High‐Sensitivity Thin‐Film Grating Absorbers for Sensing Applications

High‐Sensitivity Thin‐Film Grating Absorbers for Sensing Applications

Multiple ultra-narrow band-stop filters based on MIM plasmonic waveguide with nanoring cavities

Unsaturated polyester resin/polymethylmethacrylate waveguide-based refractive index sensor with dual-wavelength temperature compensation

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