Fig. 3
From: Spontaneous emission in micro- or nanophotonic structures
SE based on WGM structures. a The microdisk structure containing a single InAs quantum dot [84]. b Enhancement of spontaneous emission when WGM and exciton are on resonance [10]. c A glass microsphere doped with CdSe nanocrystals in a thin surface shell [89]. d The radiative lifetime of CdSe quantum dots with and without WGM structure [89]. e A high Q/V toroid microcavity on a chip [11]. f Measured Q/V ratio of toroid microcavities by varying principal diameter D [11]