Quantum coherence in semiconductor nanostructures for improved lasers and detectors.

Chow, Weng Wah ; Lyo, Sungkwun Kenneth ; Cederberg, Jeffrey George ; Modine, Normand Arthur ; Biefeld, Robert Malcolm

Sandia National Laboratories

关键词: Nanostructures;    Self-Assembly.;    Indium Arsenides;    Quantum Optics.;    36 Materials Science;   

DOI  :  10.2172/878573
RP-ID  :  SAND2006-0390
RP-ID  :  AC04-94AL85000
RP-ID  :  878573

美国|英语

来源: UNT Digital Library

【 摘 要 】

The potential for implementing quantum coherence in semiconductor self-assembled quantum dots has been investigated theoretically and experimentally. Theoretical modeling suggests that coherent dynamics should be possible in self-assembled quantum dots. Our experimental efforts have optimized InGaAs and InAs self-assembled quantum dots on GaAs for demonstrating coherent phenomena. Optical investigations have indicated the appropriate geometries for observing quantum coherence and the type of experiments for observing quantum coherence have been outlined. The optical investigation targeted electromagnetically induced transparency (EIT) in order to demonstrate an all optical delay line.