Figure 2From: Single-dot Spectroscopy of GaAs Quantum Dots Fabricated by Filling of Self-assembled Nanoholes a Micro PL spectra of a single deep-hole QD with height of 7.6 nm taken at varied excitation power I e . b Micro PL spectra of a single shallow-hole QD at varied I e . The laser energy is 2.33 eV. The spectra are vertically shifted for clarity. The exciton peaks are labeled as X and the biexciton as XX Back to article page