44 citations · 90 across the 4 of their papers we have counts for
4 papers
Flying electron spin control gates
Paul L. J. Helgers, James A. H. Stotz, Haruki Sanada +3
The control of "flying" (or moving) spin qubits is an important functionality for the manipulation and exchange of quantum information between remote locations on a chip. Typically…
Sidewall quantum wires on GaAs(001) substrates
Paul L. J. Helgers, Haruki Sanada, Yoji Kunihashi +2
We study the structural, optical, and transport properties of sidewall quantum wires on GaAs(001) substrates. The QWRs are grown by molecular beam epitaxy (MBE) on GaAs(001) substr…
Quantum confinement of exciton-polaritons in a structured (Al,Ga)As microcavity
Alexander S. Kuznetsov, Paul L. J. Helgers, Klaus Biermann +1
The realization of quantum functionalities with polaritons in an all-semiconductor platform requires the control of the energy and spatial overlap of the wave functions of single p…
Absorption and generation of femtosecond laser-pulse excited spin currents in non-collinear magnetic bilayers
Mark L. M. Lalieu, Paul L. J. Helgers, Bert Koopmans
Spin currents can be generated on an ultrafast timescale by excitation of a ferromagnetic (FM) thin film with a femtosecond laser-pulse. Recently, it has been demonstrated that the…