This project explores the fabrication of all-polymer spherical optical microcavities as a novel route toward low-threshold, radially emitting lasers. By combining quantum dots as the gain medium with block copolymer self-assembly in emulsion droplets, we aim to overcome the limitations of traditional planar cavities. These fully solution-processed structures offer enhanced light-matter interactions and eliminate angular dispersion, enabling omni-directional emission. The research is structured into two work packages focused on (1) microcavity design and fabrication and (2) precise tuning of optical properties for efficient lasing. This work lays the foundation for next-generation, scalable photonic devices in diagnostics, information processing, and energy applications.