Highly sensitive biochemical sensor comprising rectangular nanometal arrays

He, Yue-Jing

doi:10.1016/j.snb.2015.05.068

Cited by 4 publications

(8 citation statements)

References 33 publications

(64 reference statements)

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“…In numerical operations, because including all modes is impossible, errors are unavoidable. To overcome this problem, similar to the FEM approach adopted in this study, the acceptable maximum error (i.e., power loss) for modal expansions was set to −40 dB [7,13,14]. In other words, when the power loss failed to reach the review standard, the number of modes was increased and simulations were repeated until the power loss satisfied the review standard.…”

Section: Results and Analysis Of The Fbg-oadmmentioning

confidence: 99%

“…To overcome this drawback and, thus, improve the accuracy of simulation results, this study employed a PRB to convert continuous radiation modes into discrete radiation modes. In addition, to enable the converted discrete radiation modes to achieve expected power loss, a PML was incorporated into the surround layer, enabling the propagation constant of the discrete radiation modes to be −(α + iβ), where α is the attenuation constant and β is the phase constant [13,14].…”

Section: Finite Element Methodsmentioning

confidence: 99%

“…Next, the FEM was used to solve all guided modes in each block, and the EEM was then employed to transmit the power between the block boundaries. Since changes in the RIs of FBG-OADM were cyclical, the power transmission in the segments during the simulations resembled the power transmission situation of the overall FBG-OADM [7,13,14].…”

Section: Eigenmode Expansion Methodsmentioning

confidence: 99%

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Designing a Novel High-Performance FBG-OADM Based on Finite Element and Eigenmode Expansion Methods

Yang

Wun

2016

Applied Sciences

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This study designed a novel high-performance fiber Bragg grating (FBG) optical add/drop multiplexers (OADMs) by referring to current numerical simulation methods. The proposed FBG-OADM comprises two single-mode fibers placed side by side. Both optical fibers contained an FBG featuring identical parameters and the same geometric structure. Furthermore, it fulfills the full width at half maximum (FWHM) requirement for dense wavelength-division multiplexers (DWDMs) according to the International Telecommunication Union (i.e., FWHM < 0.4 nm). Of all related numerical calculation methods, the combination of the finite element method (FEM) and eigenmode expansion method (EEM), as a focus in this study, is the only one suitable for researching and designing large-scale components. To enhance the accuracy and computational performance, this study used numerical methods-namely, the object meshing method, the boundary meshing method, the perfectly matched layer, and the perfectly reflecting boundary-to simulate the proposed FBG-OADM. The simulation results showed that the novel FBG-OADM exhibited a −3 dB bandwidth of 0.0375 nm. In addition, analysis of the spectrum revealed that the drop port achieved the power output of 0 dB at an operating wavelength of 1550 nm.

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Section: Results and Analysis Of The Fbg-oadmmentioning

confidence: 99%

Section: Finite Element Methodsmentioning

confidence: 99%

Section: Eigenmode Expansion Methodsmentioning

confidence: 99%

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Designing a Novel High-Performance FBG-OADM Based on Finite Element and Eigenmode Expansion Methods

Yang

Wun

2016

Applied Sciences

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“…However, limited by server memory capacity and calculation speed, numerical simulations involving continuous radiation modes are unlikely to be practical. To solve this problem and reduce the difference between simulation results and actual manufacturing outcomes, the present study adopted a previously proposed innovative technique to integrate PML and PRB into the FEM [ 19 , 24 , 25 , 26 ]. PRB converts continuous radiation modes reflected onto the boundaries into discrete guided modes.…”

Section: Finite Element Methodsmentioning

confidence: 99%

“…This method lowers knowledge of the mathematics and physical concepts related to this field [ 18 ]. This study incorporated a perfectly matched layer (PML), perfectly reflecting boundary (PRB), the object-meshing method (OMM), and boundary meshing method (BMM) into the finite element method (FEM) and eigenmode expansion method (EEM) [ 19 , 20 ]. The simulation results include the 2D and 3D power distribution of guided modes, dispersion relation of guided modes, orthogonality relationship between modes, power loss, SFBG period Λ Bragg scanning pattern, SFBG wavelength λ Bragg scanning pattern, and power propagation of HE 11 .…”

Section: Introductionmentioning

confidence: 99%

Using Finite Element and Eigenmode Expansion Methods to Investigate the Periodic and Spectral Characteristic of Superstructure Fiber Bragg Gratings

Hung

Lai

2016

Sensors

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In this study, a numerical simulation method was employed to investigate and analyze superstructure fiber Bragg gratings (SFBGs) with five duty cycles (50%, 33.33%, 14.28%, 12.5%, and 10%). This study focuses on demonstrating the relevance between design period and spectral characteristics of SFBGs (in the form of graphics) for SFBGs of all duty cycles. Compared with complicated and hard-to-learn conventional coupled-mode theory, the result of the present study may assist beginner and expert designers in understanding the basic application aspects, optical characteristics, and design techniques of SFBGs, thereby indirectly lowering the physical concepts and mathematical skills required for entering the design field. To effectively improve the accuracy of overall computational performance and numerical calculations and to shorten the gap between simulation results and actual production, this study integrated a perfectly matched layer (PML), perfectly reflecting boundary (PRB), object meshing method (OMM), and boundary meshing method (BMM) into the finite element method (FEM) and eigenmode expansion method (EEM). The integrated method enables designers to easily and flexibly design optical fiber communication systems that conform to the specific spectral characteristic by using the simulation data in this paper, which includes bandwidth, number of channels, and band gap size.

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Analyzing Guided-Modes for Novel and High Performance FBG-OADM Using Improved FEM

2016

2016 International Symposium on Computer, Consumer and Control (IS3C)

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Highly sensitive biochemical sensor comprising rectangular nanometal arrays

Cited by 4 publications

References 33 publications

Designing a Novel High-Performance FBG-OADM Based on Finite Element and Eigenmode Expansion Methods

Designing a Novel High-Performance FBG-OADM Based on Finite Element and Eigenmode Expansion Methods

Using Finite Element and Eigenmode Expansion Methods to Investigate the Periodic and Spectral Characteristic of Superstructure Fiber Bragg Gratings

Analyzing Guided-Modes for Novel and High Performance FBG-OADM Using Improved FEM

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