PDF4PRO ⚡AMP

Modern search engine that looking for books and documents around the web

Example: stock market

Optical Physics of Quantum Wells - Stanford EE

Optical Physics of Quantum WellsDavid A. B. MillerRm. 4B-401, AT&T Bell LaboratoriesHolmdel, NJ07733-3030 USA1 IntroductionQuantum Wells are thin layered semiconductor structures in which we can observe and controlmany Quantum mechanical effects. They derive most of their special properties from thequantum confinement of charge carriers (electrons and "holes") in thin layers ( 40 atomiclayers thick) of one semiconductor "well" material sandwiched between other semiconductor"barrier" layers. They can be made to a high degree of precision by modern epitaxial crystalgrowth techniques. Many of the physical effects in Quantum well structures can be seen at roomtemperature and can be exploited in real devices. From a scientific point of view, they are also aninteresting "laboratory" in which we can explore various Quantum mechanical effects, many ofwhich cannot easily be investigated in the usual laboratory setting.

difficult to retain a well-defined crystal structure throughout the layers - the growth will not be "epitaxial". The growth is simplest when the lattice constants are identical. Fortunately, AlAs and GaAs have almost identical lattice constants, which means that arbitrary structures can be grown with high quality in this materials system.

Tags:

  Growth, Crystal

Information

Domain:

Source:

Link to this page:

Please notify us if you found a problem with this document:

Spam in document Broken preview Other abuse

Transcription of Optical Physics of Quantum Wells - Stanford EE

Related search queries