The waveguide design is one of the most important parts in a terahertz quantum cascade laser(QCL). Si/SiGe QCL waveguides, based on the Drude model and finite-difference time-domain (FDTD) method, are designed by ...
Through the theoretical analysis and computer simulation,the optimized design principles for Si/SiGe PMOSFETs are given,including the choice of gate materials,the determination of Ge percentage and the profile in SiGe...
Si/SiGe/Si n\|p\|n HBT structural materials have been grown by gas source molecular beam epitaxy with disilane, solid Ge, diborane and phosphine as sources. The materials are of good structural properties. The effecti...