Resources Contact Us Home
Quantum field-effect directional coupler

Image Number 3 for United States Patent #5105232.

A quantum field-effect directional coupler is described comprised of two quantum waveguides closely spaced apart with an adjacent gate electrode over the space between waveguides. The coupling of electron probability density between waveguides is controlled by the voltage applied to the gate electrode. The coupler implements a voltage-controlled current switch. Several couplers can be connected to perform multiplex/demultiplexing functions.

  Recently Added Patents
Power surface mount light emitting die package
Reusing data in user run book automation
Processing autocomplete suggestions
Light emitting device and light emitting device package
Valved, microwell cell-culture device and method
Wireless communications system, wireless communications apparatus, wireless communications method and computer program for wireless communication
Hand mixer
  Randomly Featured Patents
Radiant burner
Brushless motor control system
Safety-device for locking fire-arms
Systems and methods for a covered deployment unit for electronic weaponry
Ceramic electronic part
Plastics sheet material and articles produced therefrom
Two-tailed surfactants having one aromatic containing tail and their use in chemical waterflooding
Rotary electric machine
Read system for a luminescent image storage screen in an x-ray diagnostics installation
Resetting a CPU