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We investigate the rates of charge state fluctuation in single InGaAs quantum dots under resonant excitation and with an additional low-power above-band laser. Multiple charging processes are identified.
Interference between coherent scattering from the two fine structure split exciton states in a neutral InGaAs quantum dot causes an unconventional excitation line shape. Analysis allows the extraction of steady-state coherence between the exciton states.
Resonant photoluminescence excitation spectra and autocorrelation measurements indicate that a quantum dot experiences discrete spectral shifts and continuous drifts due to fluctuations in the local charge environment. Specifically, the fluctuations of few nearby charge traps.
KPiX is a 1,024 channel “System on a Chip” intended for bump bonding to large area Si sensors, enabling low multiple scattering Si strip tracking and high density Particle Flow calorimetry for SiD at the International Linear Collider (ILC). It may be used for hadronic calorimetry readout with RPC's or GEM's, and with a scintillator-based muon system using SiPM's. An electromagnetic calorimeter prototype...
We demonstrate multi-VT engineering on both CMOS bulk and FinFET devices through As implantation into a 1.0nm EOT TiN/high-K gate stack within a single metal single dielectric approach. We determine a As implantation process window enabling VT tuning without any device degradation. It is shown that this approach is suitable for multi-VT engineering with aggressively scaled dielectrics and, particularly,...
Source/drain formation in ultra-thin body devices by conventional ion implantation is analyzed using atomistic simulation. Dopant retention is dramatically reduced by backscattering for low-energy and low-tilt angles, and by transmission for high angles. For the first time, molecular dynamics and kinetic Monte Carlo simulations, encompassing the entire Si body, are applied in order to predict damage...
The Silicon Detector proposed for the International Linear Collider (ILC) requires electronic read-out that can be tightly coupled to the silicon detectors envisioned for the tracker and the electromagnetic calorimeter. The KPiX is a 1024-channel read-out chip that bump-bonds to the detector and communicates through a few digital signals, power, and detector bias. The KPiX front-end is a low-noise...
Scaling the fin width in fully-depleted FinFETs can improve short channel effect control, but may be accompanied by a on-state drive current degradation. Ion implantation is a leading candidate as the means to introduce dopants into the silicon, but is often accompanied by amorphization when highly doped source-drain regions are formed. Thin-body silicon recrystallization after amorphization is not...
Summary form only given. Wireless Mesh is a new technology that provides great benefits for network operators. Wireless Mesh networks can be installed in days, covering dozens of square miles, for thousands of pounds. The low cost, high speed and massive reach of Wireless Mesh is making it a popular choice for networks of all kinds. LocustWorld will showcase mesh network installations from around...
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