Abstract
We have investigated coherent LO phonon–plasmon coupled (LOPC) modes in an (InAs) 1/(GaAs) 30 strained-layer superlattice (SL) with a miniband structure. By generating carriers in the miniband, the GaAs-like LOPC modes are observed. In spectrally resolved pump–probe measurements, it is found that the intensity of the lower branch (L −) of the LOPC mode is enhanced around the transition energies at the miniband critical points, the mini-Brillouin-zone center and edge. In addition, the decay time of the L − mode in the SL hardly depends on the detection energy. These properties of the LOPC mode will be discussed from the viewpoint of the effect of the miniband structure.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
