417 citations · 2.3k across the 36 of their papers we have counts for
36 papers
Stable electroluminescence in ambipolar dopant-free lateral p-n junctions
Lin Tian, Francois Sfigakis, Arjun Shetty +11
Dopant-free lateral p-n junctions in the GaAs/AlGaAs material system have attracted interest due to their potential use in quantum optoelectronics (e.g., optical quantum computers…
Terahertz semiconductor laser source at -12 C
Ali Khalatpour, Man Chun Tam, Sadhvikas J. Addamane +3
Room temperature operation of Terahertz Quantum Cascade Lasers (THz QCLs) has been a long-pursued goal to realize compact semiconductor THz sources. The progress toward high-temper…
Field effect two-dimensional electron gases in modulation-doped InSb surface quantum wells
E. Annelise Bergeron, F. Sfigakis, Y. Shi +6
We report on transport characteristics of field effect two-dimensional electron gases (2DEG) in surface indium antimonide quantum wells. The topmost 5 nm of the 30 nm wide quantum…
Semiconductor nanowire metamaterial for broadband near-unity absorption
Burak Tekcan, Brad van Kasteren, Sasan V. Grayli +6
The realization of a semiconductor near-unity absorber in the infrared will provide new capabilities to transform applications in sensing, health, imaging, and quantum information…
Non-adiabatic single-electron pump in a dopant-free GaAs/AlGaAs 2DEG
B. Buonacorsi, F. Sfigakis, A. Shetty +7
We have realized quantized charge pumping using non-adiabatic single-electron pumps in dopant-free GaAs two-dimensional electron gases (2DEGs). The dopant-free III-V platform allow…
Effects of biased and unbiased illuminations on dopant-free GaAs/AlGaAs 2DEGs
A. Shetty, F. Sfigakis, W. Y. Mak +16
Illumination is performed at low temperature on dopant-free two-dimensional electron gases (2DEGs) of varying depths, under unbiased (gates grounded) and biased (gates at a positiv…