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Tuning single GaAs quantum dots in resonance with a rubidium vapor

Mon, 2011-02-14 17:18 - Daniel Rudolph
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Date: 
2010-08-23
Author(s): 

N. Akopian, U. Perinetti, L. Wang, A. Rastelli, O. G. Schmidt, and V. Zwiller

Reference: 

Appl. Phys. Lett. 97, 082103 (2010)

URL: 

http://link.aip.org/link/doi/10.1063/1.3478232

We study single GaAs quantum dots with optical transitions that can be brought into resonance with the widely used D2 transitions of rubidium atoms. We achieve resonance by Zeeman or Stark shifting the quantum dot levels. We discuss an energy stabilization scheme based on the absorption of quantum dot photoluminescence in a rubidium vapor. This offers a scalable means to counteract slow spectral diffusion in quantum dots.