3 years ago

Switchable Single-Mode Perovskite Microlasers Modulated by Responsive Organic Microdisks

Switchable Single-Mode Perovskite Microlasers Modulated
by Responsive Organic Microdisks
Jinyang Zhao, Yongli Yan, Yong Sheng Zhao, Zhenhua Gao, Wei Zhang, Cong Wei
Miniaturized lasers with high spectra purity and switchable output are of crucial importance for various ultracompact photonic devices. However, it still remains a great challenge to simultaneously control the wavelength and mode purity of microscale lasers due to the insensitive response of traditional materials to external stimuli. In this work, we propose a strategy to realize switchable single-mode microlasers in perovskite microwires (MWs) coupled with responsive organic microdisk cavities. The perovskite MW therein serves as an excellent laser source to deliver multiple lasing modes, while the microdisk functions as a spectral filter to achieve single-mode outcoupling. Furthermore, on account of the sensitive responsiveness of organic materials, reversible wavelength-switching of single-mode laser can be realized through adjusting the resonant modes of the microdisk cavity filter. The results will provide guidance for the rational design of nanophotonic devices with novel performances based on the characteristic of organic materials.

Publisher URL: http://dx.doi.org/10.1021/acs.nanolett.7b04834

DOI: 10.1021/acs.nanolett.7b04834

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