Broadband Frequency-Tunable Whispering-Gallery-Mode Superradiant Light from Quantum Dots in Colloidal Solution

Figure 4

Laser-induced fluorescence (LIF), threshold, and amplified spontaneous emission (ASE) spectra of CdSe/ZnS (560 nm, QD-1) dispersed in THF at quantum dot (QD) concentration of 26 mg in 5 mL solution.