17 citations · 41 across the 5 of their papers we have counts for
5 papers
Potential-inserted quantum well design for quantum cascade terahertz lasers
R. Benchamekh, J. -M. Jancu, P. Voisin
We report on a new design of terahertz quantum cascade laser based on a single, potential-inserted quantum well active region. The quantum well properties are engineered through si…
Theoretical analysis of influence of random alloy fluctuations on the opto-electronic properties of site-controlled (111)-oriented InGaAs/GaAs quantum dots
R. Benchamekh, S. Schulz, E. P. O'Reilly
We use an tight-binding model to investigate the electronic and optical properties of realistic site-controlled (111)-oriented InGaAs/GaAs quantum dots. Special atten…
Spin splitting of electron states in lattice-mismatched (110)-oriented quantum wells
M. O. Nestoklon, S. A. Tarasenko, R. Benchamekh +1
We show that for lattice-mismatched zinc-blende-type (110)-grown quantum wells a significant contribution to the zero-magnetic-field spin splitting of electron subbands comes from…
Optical properties of potential-inserted quantum wells in the near infrared and Terahertz ranges
F. Raouafi, R. Samti, R. Benchamekh +4
We propose an engineering of the optical properties of GaAs/AlGaAs quantum wells using AlAs and InAs monolayer insertions. A quantitative study of the effects of the monolayer posi…
Virtual crystal description of III-V semiconductor alloys in the tight binding approach
M. O. Nestoklon, R. Benchamekh, P. Voisin
We propose a simple and effective approach to construct the empirical tight-binding parameters of ternary alloys in the virtual crystal approximation. This combines a new, compact…