41 citations · 98 across the 4 of their papers we have counts for
4 papers
Optical absorption in highly-strained Ge/SiGe quantum wells: the role of Γ-to-Δ scattering
L. Lever, Z. Ikonić, A. Valavanis +7
We report the observation of the quantum-confined Stark effect in Ge/SiGe multiple quantum well heterostructures grown on Si(0.22)Ge(0.78) virtual substrates. The large compressive…
An extended density matrix model applied to silicon-based terahertz quantum cascade lasers
T. V. Dinh, A. Valavanis, L. J. M. Lever +2
Silicon-based terahertz quantum cascade lasers (QCLs) offer potential advantages over existing III-V devices. Although coherent electron transport effects are known to be important…
Material configurations for n-type silicon-based terahertz quantum cascade lasers
A. Valavanis, T. V. Dinh, L. J. M. Lever +2
Silicon-based quantum cascade lasers (QCLs) offer the prospect of integrating coherent THz radiation sources with silicon microelectronics. Theoretical studies have proposed a vari…
Theory and design of quantum cascade lasers in (111) n-type Si/SiGe
A. Valavanis, L. Lever, C. A. Evans +2
Although most work toward the realization of group IV quantum cascade lasers (QCLs) has focused on valence-band transitions, there are many desirable properties associated with the…