Control of coherent acoustic phonons in semiconductor quantum wells.

Journal Article

Using subpicosecond optical pump-probe techniques, coherent zone-folded longitudinal acoustic phonons (ZFLAPs) were investigated in an InGaN multiple quantum well structure. A two-pump differential transmission technique was used to generate and control coherent ZFLAP oscillations through the relative timing and amplitude of the two pump pulses. Enhancement and suppression of ZFLAP oscillations were demonstrated, including complete cancellation of generated acoustic phonons for the first time in any material system. Coherent control was used to demonstrate that ZFLAPs are generated differently in InGaN multiple quantum wells than in GaAs/AlAs superlattices.

Full Text

Duke Authors

Cited Authors

  • Ozgür, U; Lee, CW; Everitt, HO

Published Date

  • June 2001

Published In

Volume / Issue

  • 86 / 24

Start / End Page

  • 5604 - 5607

PubMed ID

  • 11415312

Pubmed Central ID

  • 11415312

Electronic International Standard Serial Number (EISSN)

  • 1079-7114

International Standard Serial Number (ISSN)

  • 0031-9007

Digital Object Identifier (DOI)

  • 10.1103/physrevlett.86.5604


  • eng