Leelawattananon, Tanaporn
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Preferred name
Leelawattananon, Tanaporn
Alternative Name
Leelawattananon, Thanaporn
Main Affiliation
Email
tanaporn.le@kmitl.ac.th
2 results
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Item type:Publication, Simulation of copper thin film thickness optimization for surface plasmon using the finite element method(2017-01-01); ; Chittayasothorn, SuphamitThis paper presents a computer simulation of optical activations based on the Kretschmann configuration using a prism for the observation of the surface plasmon wave. This is according to the condition of the dispersion relation. The analysis of the electric field of the surface plasmon wave which appears at the interface between the metal layer and the air layer is done by using the Finite Element Method (FEM). The simulation is performed using the COMSOL Multiphysics software which supports the FEM. The objective of our experiment is to find the most suitable thickness of the metal thin film which is most suitable for the surface plasmon excitation when activated by 632.5 nm red laser light source. The red laser light source is commonly available and also very economical. The metal used in our work is copper which is an economical noble metal and gives better conductivity than gold. The findings from the simulation will be used in the future high precision physical experiments. The outcome of this research project, the surface plasmon wave on copper thin film, is expected to be used in bio-molecular detectors or high speed THz communications. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Simulation effects on the optical response of gold nanoparticles(2019-01-01); Chittayasothorn, SuphamitIn this research work, we use simulation models for the investigation of the sizes and shapes of gold nanoparticles on BK-7 substrate base, which affect the optical characteristics in a large spectral range of the gold nanoparticles. Linearly polarized light with wavelengths of 300 – 800 nm are specified as the impact light on gold nanostructures. We try to find the suitable wavelength of the impact light when localized surface plasmon resonance takes place. The gold nanoparticles are spherical, elliptical oval, and 10nm x 40 nm block-shape and have their aspect ratio similar to the nanorod shape nanoparticles used in other experiments. The results are useful for the development of plasmonic complex nanostructure with tunable surface plasmon resonances which generate heat and have potential applications in medical thermal therapy.