208 citations · 1.2k across the 24 of their papers we have counts for
7 papers · 1 filter
Non-equilibrium hot-carrier transport in type-II multiple-quantum wells for solar-cell applications
H. P. Piyathilaka, R. Sooriyagoda, V. R. Whiteside +4
Prototypes for hot-carrier solar cells based on type-II InAs/AlAsSb multiple quantum wells are examined for AC photoconductivity as a function of lattice temperature and photoexcit…
Signatures of four-particle correlations associated with exciton-carrier interactions in coherent spectroscopy on bulk GaAs
D. Webber, B. L. Wilmer, X. Liu +4
Transient four-wave mixing studies of bulk GaAs under conditions of broad bandwidth excitation of primarily interband transitions have enabled four-particle correlations tied to de…
Role of Strain on the Coherent Properties of GaAs Excitons and Biexcitons
Brian L. Wilmer, Daniel Webber, Joseph M. Ashley +2
Polarization-dependent two-dimensional Fourier-transform spectroscopy (2DFTS) is performed on excitons in strained bulk GaAs layers probing the coherent response for differing amou…
Multidimensional Coherent Spectroscopy of a Semiconductor Microcavity
Brian L. Wilmer, Felix Passmann, Michael Gehl +2
Rephasing and non-rephasing two-dimensional coherent spectra map the anti-crossing associated with normal-mode splitting in a semiconductor microcavity. For a 12-meV detuning range…
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…
Effect of Monolayer Thickness Fluctuations on Coherent Exciton Coupling in Single Quantum Wells
Yuri D. Glinka, Zheng Sun, Mikhail Erementchouk +5
Monolayer fluctuations in the thickness of a semiconductor quantum well (QW) lead to three types of excitons, located in the narrower, average and thicker regions of the QW, which…
Many-body two-quantum coherences in semiconductor nanostructures
Denis Karaiskaj, Alan D. Bristow, Lijun Yang +4
We present experimental coherent two-dimensional Fourier transform spectra of the exciton resonances in semiconductor quantum wells for a pulse sequence that isolates two-quantum c…