Characterization of the on-chip cavity coupled emission of 2D materials at room

Light sources or lasers based on two-dimensional (2D) materials have been recently demonstrated with different photonic cavities emitting into free space. However, on-chip lasing based on 2D materials remains challenging. We present the characterization of on-chip cavity coupled emission from 2D materials and observe laser-like emission properties. We report 30% linewidth narrowing and a 'kink' in the input vs. output power relation of a device consisting of a monolayer WSe2 monolithically integrated with a high-quality factor microring resonator operating at room temperature. Our device could ultimately enable fully integrated devices where all on-chip active functionalities are mediated by 2D materials.(c) 2023 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement

Automated summary

Recent demonstrations have shown light sources or lasers based on two-dimensional (2D) materials with different photonic cavities emitting into free space. However, on-chip lasing with 2D materials remains challenging. In this study, we characterize on-chip cavity coupled emission from 2D materials and observe laser-like emission properties. We report a 30% linewidth narrowing and a 'kink' in the input vs. output power relation of a device consisting of a monolayer WSe2 integrated with a high-quality factor microring resonator operating at room temperature. Our findings could pave the way for fully integrated devices utilizing 2D materials for on-chip active functionalities.