Continuous-Wave Raman Lasing from Metal-Linked Organic Dimer Microcrystals

Stimulated Raman scattering offers an alternative strategy to explore continuous-wave (c.w.) organic lasers, which, however, still suffers from the limitation of inadequate Raman gain in organic material systems. Here we propose a metal-linking approach to enhance the Raman gain of organic molecules. Self-assembled microcrystals of the metal linked organic dimers exhibit large Raman gain, therefore allowing for c.w. Raman lasing. Furthermore, broadband tunable Raman lasing is achieved in the organic dimer microcrystals by adjusting excitation wavelengths. This work advances the understanding of Raman gain in organic molecules, paving a way for the design of c.w. organic lasers.

Automated summary

Stimulated Raman scattering offers an alternative strategy for continuous-wave (c.w.) organic lasers, but suffers from inadequate Raman gain in organic material systems. In this study, a metal-linking approach is proposed to enhance the Raman gain of organic molecules. Self-assembled microcrystals of metal-linked organic dimers exhibit large Raman gain, enabling c.w. Raman lasing. Broadband tunable Raman lasing is achieved in the organic dimer microcrystals by adjusting excitation wavelengths. The work contributes to the understanding of Raman gain in organic molecules and provides a pathway for designing c.w. organic lasers.