Comprehensive numerical analysis of finite difference time domain methods for improving optical waveguide sensor accuracy

M. Mosleh E Abu Samak, Ahmad Ashrif A Bakar, Muhammad Kashif, Mohd Saiful Dzulkefly Zan

Research output: Contribution to journalArticle

Abstract

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.

Original languageEnglish
Article number506
JournalSensors (Switzerland)
Volume16
Issue number4
DOIs
Publication statusPublished - 9 Apr 2016

Fingerprint

Finite difference time domain method
Optical waveguides
finite difference time domain method
optical waveguides
numerical analysis
Numerical analysis
sensors
Sensors
range errors
intervals
Wavelength
wavelengths
simulation
Direction compound

Keywords

  • FDTD methods
  • Multi-dimensional FDTD
  • Optical waveguide sensor OWS
  • Surface plasmon resonance SPR

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics
  • Analytical Chemistry
  • Biochemistry

Cite this

Comprehensive numerical analysis of finite difference time domain methods for improving optical waveguide sensor accuracy. / Abu Samak, M. Mosleh E; A Bakar, Ahmad Ashrif; Kashif, Muhammad; Zan, Mohd Saiful Dzulkefly.

In: Sensors (Switzerland), Vol. 16, No. 4, 506, 09.04.2016.

Research output: Contribution to journalArticle

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