Investigation Of Acoustic Phonon Scattering In a Strongly Coupled Semiconductor Microcavity

2005 ◽  
Author(s):  
A.L. Bradley ◽  
L.A. Dunbar ◽  
J.P. Doran ◽  
J. Hegarty ◽  
R.P. Stanley ◽  
...  
Keyword(s):  
Acoustic Phonon ◽  
Phonon Scattering ◽  
Strongly Coupled ◽  
Semiconductor Microcavity ◽  
Coupled Semiconductor

Polariton scattering processes under resonant excitation in a strongly coupled semiconductor microcavity

2004 ◽  
Vol 19 (9) ◽  
pp. 1104-1112
Author(s):  
L A Dunbar ◽  
M Lynch ◽  
A L Bradley ◽  
J F Donegan ◽  
R P Stanley ◽  
...  
Keyword(s):  
Resonant Excitation ◽  
Strongly Coupled ◽  
Semiconductor Microcavity ◽  
Coupled Semiconductor

scholarly journals Acoustic cavities in 2D heterostructures

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Maxim K. Zalalutdinov ◽  
Jeremy T. Robinson ◽  
Jose J. Fonseca ◽  
Samuel W. LaGasse ◽  
Tribhuwan Pandey ◽  
...  
Keyword(s):  
Sound Propagation ◽  
Phonon Scattering ◽  
Frequency Comb ◽  
Material Interfaces ◽  
Low Frequencies ◽  
Strongly Coupled ◽  
Propagation Analysis ◽  
Acoustic Cavities ◽  
Ab Initio Approach ◽  
Spatiotemporal Response

AbstractTwo-dimensional (2D) materials offer unique opportunities in engineering the ultrafast spatiotemporal response of composite nanomechanical structures. In this work, we report on high frequency, high quality factor (Q) 2D acoustic cavities operating in the 50–600 GHz frequency (f) range with f × Q up to 1 × 1014. Monolayer steps and material interfaces expand cavity functionality, as demonstrated by building adjacent cavities that are isolated or strongly-coupled, as well as a frequency comb generator in MoS2/h-BN systems. Energy dissipation measurements in 2D cavities are compared with attenuation derived from phonon-phonon scattering rates calculated using a fully microscopic ab initio approach. Phonon lifetime calculations extended to low frequencies (<1 THz) and combined with sound propagation analysis in ultrathin plates provide a framework for designing acoustic cavities that approach their fundamental performance limit. These results provide a pathway for developing platforms employing phonon-based signal processing and for exploring the quantum nature of phonons.

Momentum relaxation of 2D electron gas due to near-surface acoustic phonon scattering

1999 ◽  
Vol 270 (3-4) ◽  
pp. 280-288 ◽  
Author(s):  
V.I. Pipa ◽  
N.Z. Vagidov ◽  
V.V. Mitin ◽  
M. Stroscio
Keyword(s):  
Acoustic Phonon ◽  
Phonon Scattering ◽  
Electron Gas ◽  
Near Surface ◽  
2D Electron Gas ◽  
Momentum Relaxation

Stability of the steady state in a strongly coupled semiconductor superlattice described using a semiclassical approach

2013 ◽  
Vol 77 (12) ◽  
pp. 1444-1447 ◽  
Author(s):  
K. N. Alekseev ◽  
A. G. Balanov ◽  
A. A. Koronovskii ◽  
V. A. Maksimenko ◽  
O. I. Moskalenko ◽  
...  
Keyword(s):  
Steady State ◽  
Semiclassical Approach ◽  
Strongly Coupled ◽  
Semiconductor Superlattice ◽  
Coupled Semiconductor
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