Nanoscale multilayers in porous silicon for THz phonon engineering

Gazi N Aliev; Paul A Snow

doi:10.1557/PROC-1145-MM13-04

Nanoscale multilayers in porous silicon for THz phonon engineering

Gazi N Aliev, Paul A Snow

Department of Physics

Research output: Contribution to journal › Article

Abstract

A model predicting the frequency of folded longitudinal acoustic phonon modes in porous silicon based superlattices has been developed. The model includes the measured dependence of the acoustic velocity on porosity and the expected effect of acoustic attenuation on the dispersion relation and on line broadening. We predict that folded phonons with low folding index can be observed with the use of Raman spectroscopy in appropriately designed samples.

Original language	English
Pages (from-to)	137-142
Number of pages	6
Journal	Materials Research Society Symposium Proceedings
Volume	1145
DOIs	https://doi.org/10.1557/PROC-1145-MM13-04
Publication status	Published - Dec 2008
Event	2008 MRS Fall Meeting, December 1, 2008 - December 5, 2008 - Boston, MA, USA United States Duration: 1 Dec 2008 → …

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10.1557/PROC-1145-MM13-04

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title = "Nanoscale multilayers in porous silicon for THz phonon engineering",

abstract = "A model predicting the frequency of folded longitudinal acoustic phonon modes in porous silicon based superlattices has been developed. The model includes the measured dependence of the acoustic velocity on porosity and the expected effect of acoustic attenuation on the dispersion relation and on line broadening. We predict that folded phonons with low folding index can be observed with the use of Raman spectroscopy in appropriately designed samples.",

author = "Aliev, {Gazi N} and Snow, {Paul A}",

year = "2008",

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doi = "10.1557/PROC-1145-MM13-04",

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AU - Aliev, Gazi N

AU - Snow, Paul A

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AB - A model predicting the frequency of folded longitudinal acoustic phonon modes in porous silicon based superlattices has been developed. The model includes the measured dependence of the acoustic velocity on porosity and the expected effect of acoustic attenuation on the dispersion relation and on line broadening. We predict that folded phonons with low folding index can be observed with the use of Raman spectroscopy in appropriately designed samples.

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VL - 1145

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JF - Materials Research Society Symposium Proceedings

T2 - 2008 MRS Fall Meeting, December 1, 2008 - December 5, 2008

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Nanoscale multilayers in porous silicon for THz phonon engineering

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SOUND-LIGHT INTERACTIONS IN SPATIALLY PERIOD NANOPOROUS SILI CON STRUCTURES

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Nanoscale multilayers in porous silicon for THz phonon engineering

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SOUND-LIGHT INTERACTIONS IN SPATIALLY PERIOD NANOPOROUS SILI CON STRUCTURES

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