Microdisk cavity laser with InGaAs quantum dots on AlAs/GaAs distributed Bragg reflector

Facile synthesis and optical properties of colloidal quantum dots/ZnO composite optical resonators

“…Most of the previously described composite systems feature a distributed Bragg reector (DBR) structure and selfassembled QDs, which have allowed great progress in the development of single-photon sources, 3,4 photodetectors, 5,6 and cavity lasers. 7,8 However, the above QDs (used as gain materials in these composites) were mostly based on III-V semiconductors prepared by molecular beam epitaxy (MBE) 9 or metal-organic chemical vapor deposition (MOCVD). 10,11 Moreover, DBR-structured microcavities are usually fabricated using MBE, MOCVD, or sputtering, additionally requiring the utilization of electron beam lithography (EBL) and other nano-etching technologies.…”