Heterogeneous Integration of Colloidal Quantum Dots with Silicon Nitride Nanophotonics

Abstract

Integrated photonics is a promising platform for next-generation technologies ranging from the classical to the quantum. Conventional photonic integrated circuits are fabricated from silicon and silicon compounds that, while excellent for passive components, are ill-suited for most active applications. A solution to this problem is the heterogeneous integration of novel materials with existing photonic devices fabricated from conventional photonic materials. In this thesis, I specifically focus on the heterogeneous integration of colloidal quantum dots with silicon nitride nanophotonics including techniques thereof. I will discuss my collaborative work on integration techniques such as inkjet printing of colloidal quantum dot ensembles and singles as well as template assisted self-assembly of single colloidal quantum dot arrays. I will also cover my work on on-chip nanolasers using colloidal quantum wells, in addition to cavity-enhanced second-harmonic generation from colloidal quantum dots. Lastly, I will discuss my work on near-visible topological edge states in silicon nitride, which paves the way for integration with colloidal quantum dots. This thesis is a step forward in the work of functionalizing passive photonic devices with colloidal quantum dots.