Enhancing local absorption within a gold nano-sphere on a dielectric surface under an AFM probe

Name: Enhancing local absorption within a gold nano-sphere on a dielectric surface under an AFM probe
Author: Moghaddama, S. T., Ertürk, H., Mengüç, Mustafa Pınar

İsim	Enhancing local absorption within a gold nano-sphere on a dielectric surface under an AFM probe
Yazar	Moghaddama, S. T., Ertürk, H., Mengüç, Mustafa Pınar
Basım Tarihi:	2016-07
Basım Yeri	- Elsevier
Konu	Plasmonic heating, Discrete dipole approximation with surface interactions, Evanescent waves, Near field radiation transfer, Core–shell nano-particle
Tür	Süreli Yayın
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	0022-4073
Kayıt Numarası	2e070f17-6f36-445c-9c44-5fddee0e559c
Lokasyon	Mechanical Engineering
Tarih	2016-07
Notlar	Center for Energy, Environment and Economy at Özyeğin University
Örnek Metin	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 with a surface evanescent wave, resulting a near-field coupling between the tip and NP and consequently enhances the absorption. This concept can be used for selective heating of NPs placed over a surface that enables precise manufacturing at nanometer scales. Different tip positions are considered to identify the optimal tip location and the corresponding enhancement limits. The effects of these interactions on the absorption profiles of dielectric core/gold shell NPs are also studied. It is observed that using core–shell nanoparticles with a dielectric core leads to further enhancement of the absorption efficiency and a more uniform distribution of absorption over the shell. Discrete dipole approximation coupled with surface interactions (DDA-SI) is employed throughout the study, and it is vectorized to improve its computational efficiency.
DOI	10.1016/j.jqsrt.2016.02.011
Cilt	178

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Enhancing local absorption within a gold nano-sphere on a dielectric surface under an AFM probe

Yazar Moghaddama, S. T., Ertürk, H., Mengüç, Mustafa Pınar

Basım Tarihi 2016-07

Basım Yeri - Elsevier

Konu Plasmonic heating, Discrete dipole approximation with surface interactions, Evanescent waves, Near field radiation transfer, Core–shell nano-particle

Tür Süreli Yayın

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 0022-4073

Kayıt Numarası 2e070f17-6f36-445c-9c44-5fddee0e559c

Lokasyon Mechanical Engineering

Tarih 2016-07

Notlar Center for Energy, Environment and Economy at Özyeğin University

Örnek Metin 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 with a surface evanescent wave, resulting a near-field coupling between the tip and NP and consequently enhances the absorption. This concept can be used for selective heating of NPs placed over a surface that enables precise manufacturing at nanometer scales. Different tip positions are considered to identify the optimal tip location and the corresponding enhancement limits. The effects of these interactions on the absorption profiles of dielectric core/gold shell NPs are also studied. It is observed that using core–shell nanoparticles with a dielectric core leads to further enhancement of the absorption efficiency and a more uniform distribution of absorption over the shell. Discrete dipole approximation coupled with surface interactions (DDA-SI) is employed throughout the study, and it is vectorized to improve its computational efficiency.

DOI 10.1016/j.jqsrt.2016.02.011

Cilt 178