171 citations · 439 across the 24 of their papers we have counts for
24 papers
Separation of interface and substrate carrier dynamics at a heterointerface based on coherent optical phonons
Kunie Ishioka, Ethan Angerhoffer, Christopher J. Stanton +4
Transient reflectivity spectroscopy is widely used to study ultrafast carrier- and phonon-dynamics in semiconductors. In their heterostructures, it is often not straightforward to…
Light-Activated Nuclear Spin Polarization in Dilute Ferromagnetic (Ga,Mn)As
John T. Tokarski, Clifford R Bowers, Sunil K. Thapa +5
We study light-induced nuclear spin-polarization in a thin film of Ga1-xMnxAs (x 0.04), a dilute ferromagnetic semiconductor, grown on a GaAs substrate. High-field inductively-dete…
Experimental Measurements of Effective Mass in Near Surface InAs Quantum Wells
Joseph Yuan, Mehdi Hatefipour, Brenden A. Magill +11
Near surface indium arsenide quantum wells have recently attracted a great deal of interest since they can be interfaced epitaxially with superconducting films and have proven to b…
Valley and Zeeman Splittings in Multilayer Epitaxial Graphene Revealed by Circular Polarization Resolved Magneto-infrared Spectroscopy
Y. Jiang, Z. Lu, J. Gigliotti +7
Circular polarization resolved magneto-infrared studies of multilayer epitaxial graphene (MEG) are performed using tunable quantum cascade lasers in high magnetic fields up to 17.5…
Energy dependent amplitude of Brillouin oscillations in GaP
Andrey Baydin, Rustam Gatamov, Halina Krzyzanowska +2
Gallium phosphide is an important indirect band gap material with variety of applications in optics ranging from LEDs to applications in GaP/Si based solar cells. We investigated G…
Coherent optical and acoustic phonons generated at lattice-matched GaP/Si(001) heterointerfaces
Kunie Ishioka, Andreas Beyer, Wolfgang Stolz +4
Thin GaP films can be grown on an exact Si(001) substrate with nearly perfect lattice match. We perform all-optical pump-probe measurements to investigate the ultrafast electron-ph…