We propose a scheme for a photon switch based on quantum interference in interband transitions in an asymmetric semiconductor coupled double quantum well structure. It is shown that, due to the existence of tunneling induced quantum interference, a weak resonant probe field, in the ultraviolet or vi
Quantum interference electronic switch
✍ Scribed by O. Vanbésien; D. Lippens
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 164 KB
- Volume
- 17
- Category
- Article
- ISSN
- 0749-6036
No coin nor oath required. For personal study only.
✦ Synopsis
A novel planar electron waveguide coupler is proposed as an electronic switch. The structure consists of two quantum wires interconnected by a dual branch coupling scheme which is assumed to be controlled by an electrostatic potential. Switching is provided by tuning the phase relations between the different scattered waves by the two coupling branch lines. Assuming ballistic transport, the analysis is conducted by solving the time independent two-dimensional Schrödinger equation in order to derive the conductance characteristics. At a resonant energy of (25 \mathrm{meV}) and for a waveguide width of (27.4 \mathrm{~nm}), over (90 %) of the electron wave has been transferred with a half picosecond time response.
📜 SIMILAR VOLUMES
We theoretically discuss GaN-based quantum-effect electron devices using quantum interference of hot electron waves in the conduction band of the large bandgap collector barrier. In this type of device, the quantum interference of electrons plays a main role in the operation principle and originates
## This article is dedicated to Hermann Grabert on the occasion of his 60th birthday. Theory predicts that electrons emitted from independent electron sources (metallic contacts) can nevertheless interfere. This interference is manifest in an exchange contribution to the shot noise correlation of
A type of quantum interference network for electromagnetic radiation sensing, based on quantum wires, is proposed. A format is composed of symmetric hexagonal nanowire loops. The relevant quantum interference properties are analyzed, showing that the influence phase functional for the current densit