Single-Mode Lasing from Imprinted Halide-Perovskite Microdisks
2019; American Chemical Society; Volume: 13; Issue: 4 Linguagem: Inglês
10.1021/acsnano.8b08948
ISSN1936-086X
AutoresAlexey Zhizhchenko, Sergey Syubaev, Alexander S. Berestennikov, A. V. Yulin, Alexey P. Porfirev, Anatoly P. Pushkarev, Ivan I. Shishkin, Kirill S. Golokhvast, Andrey Bogdanov, Anvar Zakhidov, Aleksandr A. Kuchmizhak, Yuri S. Kivshar, Sergey Makarov,
Tópico(s)Solid State Laser Technologies
ResumoHalide-perovskite microlasers have demonstrated fascinating performance owing to their low-threshold lasing at room temperature and low-cost fabrication. However, being synthesized chemically, controllable fabrication of such microlasers remains challenging, and it requires template-assisted growth or complicated nanolithography. Here, we suggest and implement an approach for the fabrication of microlasers by direct laser ablation of a thin film on glass with donut-shaped femtosecond laser beams. The fabricated microlasers represent MAPbBrxIy microdisks with 760 nm thickness and diameters ranging from 2 to 9 μm that are controlled by a topological charge of the vortex beam. As a result, this method allows one to fabricate single-mode perovskite microlasers operating at room temperature in a broad spectral range (550–800 nm) with Q-factors up to 5500. High-speed fabrication and reproducibility of microdisk parameters, as well as a precise control of their location on a surface, make it possible to fabricate centimeter-sized arrays of such microlasers. Our finding is important for direct writing of fully integrated coherent light sources for advanced photonic and optoelectronic circuitry.
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