Single and entangled photon emitters at cryogenic temperature
Pyramidal quantum dots are a unique system developed at Tyndall to provide site-control of quantum dot material. The dots are either InGaAs in GaAs barriers or GaAs in AlGaAs barriers, and are grown in a tetrahedral recess etched on a 111B GaAs substrate. They obtain quantum dots have been repeatedly proven as single and entangled photon emitters at cryogenic temperatures. Emission wavelengths range from 730 to 900 nm. Can be provided as grown, or after substrate removal (apex-up configuration).
Single and entangled photons, site-control, cryogenic temperatures.
Sample size: patterned area typically a sixth of 2″ wafer
Dot pattern: hexagonal; dot recess size <12.5µm or less
Typical emission uniformity: less than 10 meV
Emission energy: 720-800nm / 850-920nm
- Nano for Quantum Technologies
Key Enabling Technologies
- Devices / Test Structures