56 citations · 303 across the 14 of their papers we have counts for
14 papers
Coherent control of current injection in zigzag graphene nanoribbons
Cuauhtémoc Salazar, J. L. Cheng, J. E. Sipe
We present Fermi's golden rule calculations of the optical carrier injection and the coherent control of current injection in graphene nanoribbons with zigzag geometry, using an en…
Full Band Structure Calculation of Two-photon Indirect Absorption in Bulk Silicon
J. L. Cheng, J. Rioux, J. E. Sipe
Degenerate two-photon indirect absorption in silicon is an important limiting effect on the use of silicon structures for all-optical information processing at telecommunication wa…
Theory of optical spin orientation in silicon
J. L. Cheng, J. Rioux, J. Fabian +1
We theoretically investigate the indirect optical injection of carriers and spins in bulk silicon, using an empirical pseudopotential description of electron states and an adiabati…
Spin relaxation in -type ZnO quantum wells
C. Lü, J. L. Cheng
We perform an investigation on the spin relaxation for -type ZnO (0001) quantum wells by numerically solving the kinetic spin Bloch equations with all the relevant scattering ex…
Kinetic investigation on extrinsic spin Hall effect induced by skew scattering
J. L. Cheng, M. W. Wu
The kinetics of the extrinsic spin Hall conductivity induced by the skew scattering is performed from the fully microscopic kinetic spin Bloch equation approach in GaAs sym…
Anisotropic spin transport in GaAs quantum wells in the presence of competing Dresselhaus and Rashba spin-orbit-coupling strengths
J. L. Cheng, M. W. Wu, I. C. da Cunha Lima
Aiming at the optimization of the spin diffusion length in (001) GaAs quantum wells, we explore the effect of the anisotropy of the spin-orbit coupling on the competition between t…