130 citations · 389 across the 8 of their papers we have counts for
8 papers
Nonlinear Optical Observation of Coherent Acoustic Dirac Plasmons in Thin-Film Topological Insulators
Yuri D. Glinka, Sercan Babakiray, Trent A. Johnson +2
Low-energy collective electronic excitations exhibiting sound-like linear dispersion have been intensively studied both experimentally and theoretically for a long time. However, c…
Resonance-type thickness dependence of optical second harmonic generation in thin-films of the topological insulator Bi2Se3
Yuri D. Glinka, Sercan Babakiray, Trent A. Johnson +2
Optical second harmonic generation (SHG) has been measured for the first time in reflection from the nanometer-thick films (6 to 40 nm) of the topological insulator Bi2Se3 using 1.…
Acoustic phonon dynamics in thin-films of the topological insulator Bi2Se3
Yuri D. Glinka, Sercan Babakiray, Trent A. Johnson +2
Transient reflectivity traces measured for nanometer-sized films of the topological insulator Bi2Se3 revealed GHz-range oscillations driven within the relaxation of hot carriers ph…
Coherent control of injection currents in high-quality films of Bi2Se3
D. A. Bas, K. Vargas-Velez, S. Babakiray +5
Films of the topological insulator Bi2Se3 are grown by molecular beam epitaxy with in-situ reflection high-energy electron diffraction. The films are shown to be high-quality by X-…
Thickness tunable quantum interference between surface phonon and Dirac plasmon states in thin-films of the topological insulator Bi2Se3
Yuri D. Glinka, Sercan Babakiray, Trent A. Johnson +1
We report on a >100-fold enhancement of Raman responses from Bi2Se3 thin films if laser photon energy switches from 2.33 eV (532 nm) to 1.58 eV (785 nm), which is due to direct opt…
Effect of carrier recombination on ultrafast carrier dynamics in thin films of the topological insulator Bi2Se3
Yuri D. Glinka, Sercan Babakiray, Trent A. Johnson +2
Transient reflectivity (TR) from thin films (6 - 40 nm thick) of the topological insulator Bi2Se3 reveal ultrafast carrier dynamics, which suggest the existence of both radiative a…
Phase diagram of a three-dimensional antiferromagnet with random magnetic anisotropy
Felio A. Perez, Pavel Borisov, Trent A. Johnson +5
Three-dimensional (3D) antiferromagnets with random magnetic anisotropy (RMA) experimentally studied to date do not have random single-ion anisotropies, but rather have competing t…
Ultrafast carrier dynamics in thin-films of the topological insulator Bi2Se3
Yuri D. Glinka, Sercan Babakiray, Trent A. Johnson +2
Transient reflectivity measurements of thin films, ranging from 6 to 40 nm in thickness, of the topological insulator Bi2Se3 revealed a strong dependence of the carrier relaxation…