150 citations · 380 across the 8 of their papers we have counts for
8 papers
Low-threshold optically pumped lasing in highly strained Ge nanowires
Shuyu Bao, Daeik Kim, Chibuzo Onwukaeme +11
The integration of efficient, miniaturized group IV lasers into CMOS architecture holds the key to the realization of fully functional photonic-integrated circuits. Despite several…
Unifying first principle theoretical predictions and experimental measurements of size effects on thermal transport in SiGe alloys
Samuel Huberman, Vazrik Chiloyan, Ryan A. Duncan +6
In this work, we demonstrate the correspondence between first principle calculations and experimental measurements of size effects on thermal transport in SiGe alloys. Transient th…
Thermal Conductivity of GaAs/Ge Nanostructures
Roger Jia, Lingping Zeng, Gang Chen +1
Superlattices are promising low-dimensional nanomaterials for thermoelectric technology that is capable of directly converting low-grade heat energy to useful electrical power. In…
Demonstration of a novel dispersive spectral splitting optical element for cost- effective photovoltaic conversion
Carlo Maragliano, Tim Milakovich, Matteo Bronzoni +4
In this letter we report the preliminary validation of a low-cost paradigm for photovoltaic power generation that utilizes a prismatic Fresnel-like lens to simultaneously concentra…
Defect and Temperature Dependence of Tunneling in InAs/GaSb Heterojunctions
Ryan M. Iutzi, Eugene A. Fitzgerald
Tunnel field effect transistors (TFETs) utilizing semiconductor heterojunctions have shown promise for low energy logic but presently do not display subthreshold swings steeper tha…
Microstructure and Conductance-Slope of InAs/GaSb Tunnel Diodes
Ryan M. Iutzi, Eugene A. Fitzgerald
InAs/GaSb and similar materials systems have generated great interest as a heterojunction for tunnel field effect transistors (TFETs) due to favorable band alignment. However, litt…
Lifetime of sub-THz coherent acoustic phonons in a GaAs-AlAs superlattice
A. A. Maznev, Felix Hofmann, Adam Jandl +5
We measure the lifetime of the zone-center 340 GHz longitudinal phonon mode in a GaAs-AlAs superlattice excited and probed with femtosecond laser pulses. By comparing measurements…
Phase-controlled, heterodyne laser-induced transient grating measurements of thermal transport properties in opaque material
Jeremy A. Johnson, Alexei A. Maznev, Keith A. Nelson +6
The methodology for a heterodyned laser-induced transient thermal grating technique for non-contact, non-destructive measurements of thermal transport in opaque material is present…