54 citations · 110 across the 5 of their papers we have counts for
5 papers
Assembly and disorder dissipation in superparamagnetic nanoparticle chains in a rotating magnetic field
Zhixing He, Hans D. Robinson
We investigate the formation of chains of superparamagnetic iron oxide nanoparticles (SPIONs) in a rotating magnetic field, combining two well-explored chain-forming systems: large…
Single photo-electron trapping, storage, and detection in a one-electron quantum dot
Deepak Sethu Rao, Thomas Szkopek, Hans Daniel Robinson +2
There has been considerable progress in electro-statically emptying, and re-filling, quantum dots with individual electrons. Typically the quantum dot is defined by electrostatic g…
A single photoelectron transistor for quantum optical communications
Hideo Kosaka, Deepak S. Rao, Hans D. Robinson +3
A single photoelectron can be trapped and its photoelectric charge detected by a source/drain channel in a transistor. Such a transistor photodetector can be useful for flagging th…
Photoconductance Quantization in a Single-Photon Detector
Hideo Kosaka, Deepak S. Rao, Hans D. Robinson +3
We have made a single-photon detector that relies on photoconductive gain in a narrow electron channel in an AlGaAs/GaAs 2-dimensional electron gas. Given that the electron channel…
Direct Observation of Lateral Coupling Between Self-Assembled Qauntum Dots
H. D. Robinson, B. B. Goldberg, J. L. Merz
Scattering of carriers between spatially separated zero dimensional states has been observed in a system of self-assembled In_{0.55}Al_{0.45}As quantum dots. We believe the interdo…