Browsing by Author "Ertürk, H."
Now showing items 1-10 of 10
-
Absorption and plasmon resonance of bi-metallic core-shell nanoparticles on a dielectric substrate
Avşar, D.; Ertürk, H.; Mengüç, Mustafa Pınar (Begell House Inc., 2019-06)Numerical investigation of absorption efficiency profiles and localized surface plasmon resonance (LSPR) wavelengths are performed for metallic core-shell nanoparticles (NPs) placed over a BK7 glass substrate. Gold (Au) ... -
Development of an accelerated Monte Carlo ray tracing based radiation heat transfer solver
Siddiqui, Faizan Pervez (2017-07)The Monte Carlo ray tracing (MCRT) is a semi-analytical stochastic method for the solution of radiative transfer equation (RTE). However, its high computation cost prevents its extensive use. In this study, an accelerated ... -
Discrete dipole approximation with surface interaction
Loke, V. L. Y.; Ertürk, H.; Mengüç, Mustafa Pınar (Elsevier, 2023-01-01)In this chapter, we discuss a methodology to determine absorption and scattering cross sections of particles of different size and shape placed on substrates. This approach is based on the principles of discrete dipole ... -
Effect of the probe location on the absorption by an array of gold nano-particles on a dielectric surface
Moghaddam, S. T.; Avşar, D.; Ertürk, H.; Mengüç, Mustafa Pınar (Elsevier, 2017)Effect of silicon atomic force microscope probe position and particle spacing on the local absorption of an array of gold nanoparticles placed over a dielectric borosilicate glass surface are evaluated. An improved, ... -
Enhancing local absorption within a gold nano-sphere on a dielectric surface under an AFM probe
Moghaddama, S. T.; Ertürk, H.; Mengüç, Mustafa Pınar (Elsevier, 2016-07)This study considers enhancing localized absorption by a gold nanoparticle (NP) placed over a substrate where an atomic force microscope (AFM) tip is in close proximity of the particle. The gold NP and AFM tip are interacting ... -
Modelling surface plasmon resonances of arrays of nano particles on a dielectric substrate using discrete dipole approximation with surface interaction (DDA-SI)
Fathi, Zahra Rastampour (2017-06)Analysis of surface plasmon resonance of arbitrary shape nano-particles on a substrate is important for many engineering applications. The strong optical absorption of noble metal nano-particles is due to the localized ... -
Near- and far-field thermal radiation in metamaterials and the development of NF-RT-FDTD algorithm
Didari, Azadeh (2016-06)In this dissertation, analysis of near-field regime of thermal radiative transfer in metamaterials supporting surface phonon polaritons (SPhPs) is given. Solutions of electromagnetic fields at subwavelength distances are ... -
Optimization of spectrally selective Si/SiO2 based filters for thermophotovoltaic devices
Khosroshahi, F. K.; Ertürk, H.; Mengüç, Mustafa Pınar (Elsevier, 2017-08)Design of a spectrally selective filter based on one-dimensional Si/SiO2 layers is considered for improved performance of thermo-photovoltaic devices. Spectrally selective filters transmit only the convertible radiation ... -
Plasmon coupling between complex gold nanostructures and a dielectric substrate
Fathi, Zahra Rostampour; Mengüç, Mustafa Pınar; Ertürk, H. (The Optical Society, 2018-10-20)Intercoupling of an incident electric field in metal nanoparticles causes asymmetric distribution of surface charges, which eventuates in shifting of the surface plasmon resonance frequency. This feature can be used in ... -
Plasmonic responses of metallic/dielectric core-shell nanoparticles on a dielectric substrate
Avşar, D.; Ertürk, H.; Mengüç, Mustafa Pınar (IOP Publishing, 2019-06)The effect of material selection on the plasmonic response and local absorption are evaluated for core- shell nanoparticles placed over a BK7 glass substrate. Eight different core-shell pairs are studied using the vectorized ...
Share this page