Dual-wavelength switchable single-mode lasing from a lanthanide-doped resonator

• DOI: 10.1038/s41467-022-29435-w
• Publication Date: 2022-04-01T10:22:14Z
• Authors: Limin Jin; Xian Chen; Yunkai Wu; Xiangzhe Ai; Xiaoli Yang; Shumin Xiao; Qinghai Song
• Keywords: Science; Q; 02 engineering and technology; 0210 nano-technology; 7. Clean energy; 01 natural sciences; Article; 0104 chemical sciences

The development of multi-wavelength lasing, particularly with the wavelength tuning in a wide spectral range, is challenging but highly desirable for integrated photonic devices due to its dynamic switching functionality, high purity and contrast. Here, we propose general strategy, that relies on simultaneous design electronic states optical states, demonstrate dynamically switchable single-mode lasing spanning beyond record range (300 nm). This achieved through integrating reversely designed nanocrystals two size-mismatched coupled microcavities. We show an experimental validation crosstalk-free violet-to-red behavior collective control asymmetric excitation wavelength. action persists power presents significant enhancement when compared microdisk laser. These findings enlighten reverse luminescent materials. Given remarkable doping flexibility, our results may create new opportunities variety frontier applications.