Comprehensive Numerical Analysis of Finite Difference Time Domain Methods for Improving Optical Waveguide Sensor Accuracy
| Autor: | Mohd Saiful Dzulkefly Zan, M. Mosleh E. Abu Samak, Ahmad Ashrif A Bakar, Muhammad Kashif |
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| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
multi-dimensional FDTD
02 engineering and technology Interval (mathematics) lcsh:Chemical technology Time saving FDTD methods Biochemistry Analytical Chemistry optical waveguide sensor OWS Approximation error 0202 electrical engineering electronic engineering information engineering Electronic engineering lcsh:TP1-1185 Electrical and Electronic Engineering Instrumentation Mathematics surface plasmon resonance SPR Small number Numerical analysis Finite-difference time-domain method 020206 networking & telecommunications Concept Paper 021001 nanoscience & nanotechnology Atomic and Molecular Physics and Optics Wavelength Alternating direction implicit method 0210 nano-technology Algorithm |
| Zdroj: | Sensors (Basel, Switzerland) Sensors, Vol 16, Iss 4, p 506 (2016) |
| ISSN: | 1424-8220 |
| Popis: | This paper discusses numerical analysis methods for different geometrical features that have limited interval values for typically used sensor wavelengths. Compared with existing Finite Difference Time Domain (FDTD) methods, the alternating direction implicit (ADI)-FDTD method reduces the number of sub-steps by a factor of two to three, which represents a 33% time savings in each single run. The local one-dimensional (LOD)-FDTD method has similar numerical equation properties, which should be calculated as in the previous method. Generally, a small number of arithmetic processes, which result in a shorter simulation time, are desired. The alternating direction implicit technique can be considered a significant step forward for improving the efficiency of unconditionally stable FDTD schemes. This comparative study shows that the local one-dimensional method had minimum relative error ranges of less than 40% for analytical frequencies above 42.85 GHz, and the same accuracy was generated by both methods. |
| Databáze: | OpenAIRE |
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