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Can I read Photoacoustic Study of Elastic Deformations in Silicon Membranes on EtoBox?
Photoacoustic Study of Elastic Deformations in Silicon Membranes by D. M. Todorovic is a Physics and Astronomy article available to read on EtoBox.
What is Photoacoustic Study of Elastic Deformations in Silicon Membranes about?
In an optically excited semiconductor micromechanical structure, photogenerated carriers (plasma waves) can produce elastic deformations (local strains and stresses)–plasmaelastic (PE) deformations. On the other hand, the generation of excess carriers will produce heat due to carrier thermalization and recombination processes. The generated heat can produce other elastic deformations–thermoelastic (TE) deformations. For these two components of elastic deformation, it is possible to consider two types of elastic displacements (two mods of elastic vibrations): elastic expanding and elastic bending. A theoretical model of the photoacoustic (PA) signal for optically excited Si membranes is given, which includes thermal diffusion (TD), TE, and PE mechanisms, in order to study elastic expansion and bending. The relations for the PA amplitude and the phase of elastic expanding and bending in the excited membrane are derived. Analysis of the PA signal indicates that the TD component is dominant for all thicknesses and practically the entire range of observed frequencies. The calculated PA amplitude and phase spectra show that the PA elastic expanding component has a significant influence o
Who reads Photoacoustic Study of Elastic Deformations in Silicon Membranes?
It is typically read by researchers, students, and practitioners in Physics and Astronomy.
- Author
- D. M. Todorovic
- Publisher
- AIP Publishing
- Published
- 2023
- Language
- EN
- Field
- Physics and Astronomy (Physical Sciences)