2002
DOI: 10.1557/proc-731-w10.4
|View full text |Cite
|
Sign up to set email alerts
|

Modeling of Phonon Dispersion in a Semiconductor Quantum Dot Crystal

Abstract: We describe a model for numerical calculation of phonon spectrum in a three-dimensional regimented array of semiconductor quantum dots. Regimentation and possibility of carrier mini-band formation make this structure analogous to a crystal, e.g.quantum dot crystal. It is demonstrated that the acoustic phonon dispersion undergoes strong modification in such a structure leading to emergence of low-energy quasi-optical branches. Strong phonon spectrum modification is expected to affect carrier relaxation and tran… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
1

Citation Types

0
1
0

Year Published

2007
2007
2007
2007

Publication Types

Select...
1

Relationship

0
1

Authors

Journals

citations
Cited by 1 publication
(1 citation statement)
references
References 7 publications
0
1
0
Order By: Relevance
“…9 It was initially developed for the interpretation of Brillouin scattering in bulk materials. It has been then extended to two-dimensional structures 4 ͑superlattices, cavities, membranes͒ and generalized recently by Lazarenkova et al 10 to three-dimensional ordered ensembles of self-assembled quantum dots. The PEM is very useful for studying acoustic cavity effects as shown by Giehler et al 11 and Fainstein et al 12 Acoustic confinement in semiconductor membranes ͑tens of nm thick͒ has been also pointed out recently by Sotomayor et al 13 using a detailed comparison between Raman-Brillouin measurements and the spectra simulated with the PEM.…”
Section: Introductionmentioning
confidence: 99%
“…9 It was initially developed for the interpretation of Brillouin scattering in bulk materials. It has been then extended to two-dimensional structures 4 ͑superlattices, cavities, membranes͒ and generalized recently by Lazarenkova et al 10 to three-dimensional ordered ensembles of self-assembled quantum dots. The PEM is very useful for studying acoustic cavity effects as shown by Giehler et al 11 and Fainstein et al 12 Acoustic confinement in semiconductor membranes ͑tens of nm thick͒ has been also pointed out recently by Sotomayor et al 13 using a detailed comparison between Raman-Brillouin measurements and the spectra simulated with the PEM.…”
Section: Introductionmentioning
confidence: 99%