Multi-barrier tunnelling structures which have features that can be considered as power sources in the range of 300 GHz to 2 THz are described. Current molecular beam epitaxy (MBE) techniques can achieve the requirements for uniformity in electron energy within a quantum well on both small and large distance scales. The most important remaining problem in MBE growth is the short term fluctuations in the growth rates. Now that the time scale of this major problem has been identified there is a reasonable prospect of identifying its cause and eliminating the problem.
|Number of pages||5|
|Journal||IEE Colloquium (Digest)|
|Publication status||Published - 1 Jan 1997|
|Event||Proceedings of the 1997 IEE Colloquium on Terahertz Technology and Its Applications - London, UK|
Duration: 10 Apr 1997 → 10 Apr 1997