Optical spectroscopy of site-controlled quantum dots in a Schottky diode
Abstract
The optical quality of site-controlled quantum dots is typically assessed by off-resonant photoluminescence spectroscopy, and emission linewidth is the most common figure of merit. Here, we combine photoluminescence and resonance fluorescence spectroscopy to obtain a more complete picture of site-controlled quantum dots embedded in a charge injection device. Although resonant and non-resonant linewidths are nearly as small as those of randomly nucleated dots, other optical properties show clear evidence of influence from defects introduced by the nanofabrication process. We demonstrate optical spin pumping and spin-flip Raman processes, which are important functions for use in quantum information applications.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jun 06, 2016
- Source ID
- 10.1063/1.4952767
Entities
People
- Allan S. Bracker
- Chul Soo Kim
- Daniel Gammon
- Lily Yang
- Michael K. Yakes
- Mijin Kim
- Patrick M Vora
- Samuel G Carter
Organizations
- Nuclear Regulatory Commission
- Office of the Secretary of Defense
- United States Naval Research Laboratory