136 citations · 277 across the 7 of their papers we have counts for
7 papers
Influence of doping level on Brillouin oscillations in GaAs
Adam Dodson, Andrey Baydin, Hongrui Wu +2
Time-domain Brillouin scattering has proved to be an unique tool for determining depth dependent material properties. Here, we show the influence of doping level in GaAs on Brillou…
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…
On the interpretation of manifold ultrafast dynamics in supported graphene
Rustam Gatamov, Andrey Baydin, Halina Krzyzanowska +1
Understanding the ultrafast carrier dynamics of graphene on a substrate is a fundamental step in the development of graphene based opto-electronic devices. Here, we present ultrafa…
Ultrafast carrier and phonon dynamics in Bi2Se3 crystals
J. Qi, X. Chen, W. Yu +9
Ultrafast time-resolved differential reflectivity of Bi2Se3 crystals is studied using optical pump-probe spectroscopy. Three distinct relaxation processes are found to contribute t…
Mechanical and Electronic Properties of Ferromagnetic GaMnAs Using Ultrafast Coherent Acoustic Phonons
J. Qi, J. A. Yan, H. Park +7
Ultrafast two-color pump-probe measurements, involving coherent acoustic phonon (CAP) waves, have provided information simultaneously on the mechanical properties and on the electr…
Coherent Magnetization Precession in GaMnAs induced by Ultrafast Optical Excitation
J. Qi, Y. Xu, N. Tolk +3
We use femtosecond optical pulses to induce, control and monitor magnetization precession in ferromagnetic Ga0.965Mn0.035As. At temperatures below ~40 K we observe coherent oscilla…