2 papers
cond-mat.mtrl-sci2005
Ultra low threshold current THz quantum cascade lasers based on buried strip-waveguides
S. Dhillon, J. Alton, S. Barbieri +5
THz quantum cascade lasers based on a novel buried cavity geometry are demonstrated by combining double-metal waveguides with proton implantation. Devices are realised with emissio…
cond-mat.str-el2003
Possible evidence of a spontaneous spin-polarization in mesoscopic 2D electron systems
A. Ghosh, C. J. B. Ford, M. Pepper +2
We have experimentally studied the non-equilibrium transport in low-density clean 2D electron systems at mesoscopic length scales. At zero magnetic field (B), a double-peak structu…