Tuneable red, green, and blue single-mode lasing in heterogeneously coupled organic spherical microcavities.

ABSTRACT: Tuneable microlasers that span the full visible spectrum, particularly red, green, and blue (RGB) colors, are of crucial importance for various optical devices. However, RGB microlasers usually operate in multimode because the mode selection strategy cannot be applied to the entire visible spectrum simultaneously, which has severely restricted their applications in on-chip optical processing and communication. Here, an approach for the generation of tuneable multicolor single-mode lasers in heterogeneously coupled microresonators composed of distinct spherical microcavities is proposed. With each microcavity serving as both a whispering-gallery-mode (WGM) resonator and a modulator for the other microcavities, a single-mode laser has been achieved. The colors of the single-mode lasers can b

SUBMITTER: Du Y 

PROVIDER: S-EPMC7455725 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature