Author
Loke, V. L. Y., Ertürk, H., Mengüç, Mustafa Pınar
Publication Date
2023-01-01
Publication Place
-
Elsevier
Subject
Discrete dipole approximation, Evanescent wave, Field enhancement, Volume integration
Type
Book
Language
English
Digital
Yes
Manuscript
No
Library
Özyeğin University
Library Asset ID
978-032399901-4
Record ID
28c29f6c-ec00-47fa-9c6b-7e5ec8db8e51
Library Location
Mechanical Engineering
Date
2023-01-01
Sample Text
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 approximation (DDA); however, the interaction matrix between the dipoles is modified to include the effect of the semiinfinite surface by including dipole reflections represented by Sommerfeld integrals. Depending on the direction of an incident plane wave, the particle will be illuminated by the combination of the incident wave with the reflected, transmitted, or evanescent wave. In order to explore problems involving nanomanufacturing or sensing, a new DDA-SI algorithm is constructed as an open-source computational toolbox in a MATLAB environment. Later, two other algorithms (DDA-SI-v and zDDA-SI) were developed to increase the speed of calculations. All three algorithms were considered for atomic force microscopy-based manufacturing applications using dielectric and metallic nanoparticles. Examples of different cases are provided at the end of the chapter.
DOI
10.1016/B978-0-323-99901-4.00018-4
