Browsing by Author "Loke, Vincent L. Y."
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Comparison between discrete dipole approximation and other modelling methods for the plasmonic response of gold nanospheres
Loke, Vincent L. Y.; Huda, G. M.; Donev, E. U.; Schmidt, V.; Hastings, J. T.; Mengüç, Mustafa Pınar; Wriedt, T. (Springer Science+Business Media, 2014-05)We investigate the plasmonic response of gold nanospheres calculated using discrete dipole approximation validated against the results from other discretization methods, namely the finite-difference time-domain method and ... -
Discrete dipole approximation of gold nanospheres on substrates: considerations and comparison with other discretization methods
Loke, Vincent L. Y.; Donev, E. U.; Huda, G. M.; Hastings, J. T.; Mengüç, Mustafa Pınar; Wriedt, T. (AAPP Physical, Mathematical, and Natural Sciences, 2011)We embark on this preliminary study of the suitability of the discrete dipole approximation with surface interaction (DDA-SI) method to model electric field scattering from noble metal nano-structures on dielectric substrates. ... -
Discrete-dipole approximation with surface interaction: computational toolbox for MATLAB
Loke, Vincent L. Y.; Mengüç, Mustafa Pınar; Nieminen, T. A. (Elsevier, 2011-07)We describe a MATLAB toolbox that utilizes the discrete-dipole approximation (DDA) method for modelling light interaction with arbitrarily-shape scatterers in free space as well with planar surface interaction (DDA-SI). ... -
Surface waves and atomic force microscope probe-particle near-field coupling: discrete dipole approximation with surface interaction
Loke, Vincent L. Y.; Mengüç, Mustafa Pınar (Optics InfoBase, 2010-10)Evanescent waves on a surface form due to the collective motion of charges within the medium. They do not carry any energy away from the surface and decay exponentially as a function of the distance. However, if there is ... -
T-matrix method for modelling optical tweezers
Nieminen, T. A.; Loke, Vincent L. Y.; Stilgoe, A. B; Heckenberg, N. R.; Rubinsztein-Dunlop, H. (Taylor & Francis, 2011)We review the use of the T-matrix description of scattering, or the T-matrix method, for the calculation of optical forces and torques, especially for the computational modelling of optical tweezers. We consider both simple ...
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