Coherent Control of Acoustic Phonons in hybrid Metal-Semiconductor   System
  We demonstrate the modification of coherent zone-folded longitudinal acoustic phonons (ZFLAPs) oscillations in InGaN/GaN multiple quantum wells by the inclusion of metal nanoparticles (Au and Ag) via self-assembled inverted hexagonal pits. Blueshift and redshift have been observed in photoluminescence spectra due to the effect of electrostatic charge of metal nanoparticles (NPs). A change in periodicity of ZFLAPs oscillations were demonstrated due to the metal NPs inserted in the material system. 
Meg Mahat (1), Sergio Periera (2), Ian M. Watson (3), T.Y. Choi (4),   Arup Neogi (1) ((1) Department of Physics, University...
cond-mat.mtrl-sci cond-mat.other