Surface waves and atomic force microscope probe-particle near-field coupling: discrete dipole approximation with surface interaction

Name: Surface waves and atomic force microscope probe-particle near-field coupling: discrete dipole approximation with surface interaction
Author: Loke, Vincent L. Y., Mengüç, Mustafa Pınar

İsim	Surface waves and atomic force microscope probe-particle near-field coupling: discrete dipole approximation with surface interaction
Yazar	Loke, Vincent L. Y., Mengüç, Mustafa Pınar
Basım Tarihi:	2010-10
Basım Yeri	- Optics InfoBase
Konu	Evanescent waves, Optics at Surfaces
Tür	Süreli Yayın
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	1084-7529
Kayıt Numarası	857f7af4-4616-4e96-acd4-b8fce635182e
Lokasyon	Mechanical Engineering
Tarih	2010-10
Notlar	Due to copyright restrictions, the access to the full text of this article is only available via subscription.
Örnek Metin	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 any object within the evanescent ﬁeld, electromagnetic energy within the medium is tunneled away and either absorbed or scattered. In this case, the absorption is localized, and potentially it can be used for selective diagnosis or nanopatterning applications. On the other hand, scattering of evanescent waves can be employed for characterization of nanoscale structures and particles on the surface. In this paper we present a numerical methodology to study the physics of such absorption and scattering mechanisms. We developed a MATLAB implementation of discrete dipole approximation with surface interaction (DDA-SI) in combinationwith evanescent wave illumination to investigate the near-ﬁeld coupling between particles on the surface and a probe. This method can be used to explore the effects of a number of physical, geometrical, and materialproperties for problems involving nanostructures on or in the proximity of a substrate under arbitrary illumination.
DOI	10.1364/JOSAA.27.002293
Cilt	27

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Surface waves and atomic force microscope probe-particle near-field coupling: discrete dipole approximation with surface interaction

Yazar Loke, Vincent L. Y., Mengüç, Mustafa Pınar

Basım Tarihi 2010-10

Basım Yeri - Optics InfoBase

Konu Evanescent waves, Optics at Surfaces

Tür Süreli Yayın

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 1084-7529

Kayıt Numarası 857f7af4-4616-4e96-acd4-b8fce635182e

Lokasyon Mechanical Engineering

Tarih 2010-10

Notlar Due to copyright restrictions, the access to the full text of this article is only available via subscription.

Örnek Metin 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 any object within the evanescent ﬁeld, electromagnetic energy within the medium is tunneled away and either absorbed or scattered. In this case, the absorption is localized, and potentially it can be used for selective diagnosis or nanopatterning applications. On the other hand, scattering of evanescent waves can be employed for characterization of nanoscale structures and particles on the surface. In this paper we present a numerical methodology to study the physics of such absorption and scattering mechanisms. We developed a MATLAB implementation of discrete dipole approximation with surface interaction (DDA-SI) in combinationwith evanescent wave illumination to investigate the near-ﬁeld coupling between particles on the surface and a probe. This method can be used to explore the effects of a number of physical, geometrical, and materialproperties for problems involving nanostructures on or in the proximity of a substrate under arbitrary illumination.

DOI 10.1364/JOSAA.27.002293

Cilt 27