quantum well


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quantum well

[¦kwän·təm ′wel]
(electronics)
A thin layer of material (typically between 1 and 10 nanometers thick) within which the potential energy of an electron is less than outside the layer, so that the motion of the electron perpendicular to the layer is quantized.
References in periodicals archive ?
Keywords: Resonant tunneling devices, Nanoelectronics, Quantum theory, Quantum wells, Semiconductor device modeling.
When a quantum well is in the presence of a monochromatic laser beam--linearly polarized in the axial direction (z axis)--we can study the electronic states of the confinement potential and the electromagnetic field, including the term representing the external field in the kinetic part of the Hamiltonian operator.
In this case the lattice constant of the quantum well material is almost matched with the lattice constant of 5.
Chiarello, "Collective electronic excitations in systems exhibiting quantum well states," Surface Review and Letters, Vol.
The forming of the quantum well in n-Si needs essentially higher doping values than in n-GaAs [51], because the effective mass of the density of states in silicon is much higher.
Figures 3, 4 and 5 depict the transmission spectra of photonic quantum well structures [(AB).
But unlike infrared detectors using quantum well technology, these nanocrystals can absorb light shining straight down on them, meaning night vision systems based on quantum dots could be simpler and less expensive.
The different transitions in the mobility evolution are explained by changing the number of states in n-delta doped quantum well.
Liu, "Linear and nonlinear intersubband optical absorption in double triangular quantum wells," Solid State Commun.
Laterally pumped GaAs/AlGaAs quantum wells as sources of broadband terahertz radiation // Journal of Applied Physics.
They built their device out of electrons moving through a series of structures known as quantum wells.
8 |mu~m using single quantum well AlGaAs structures.