Table 1.

Lasing statistics summary

Sample	Average wavelength of background emission, nm	Average wavelength of lasing mode, nm	Average lasing threshold, μW	Threshold range, μW
QW	446 ± 2.3	448 ± 6.7	184	88–375
fQW	457 ± 3.5	451 ± 6.7	753	83–3600
fQW+QD A	441 ± 4.8	428 ± 3.8	303	118–815
fQW+QD B	437 ± 4.4	429 ± 6.3	2029	350–6175

Center of background emission spectrum, average wavelength of lasing mode, and lasing threshold determined by averaging over the 20 microdisk lasers measured for each of the four active layer materials.