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首页> 外文期刊>RSC Advances >Tailoring the lasing modes in CH3NH3PbBr3 perovskite microplates via micro-manipulation
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Tailoring the lasing modes in CH3NH3PbBr3 perovskite microplates via micro-manipulation

机译：通过微型操作来定制CH3NH3PBBBR3钙钛矿微孔板中的激光模式

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Laser emissions from perovskite microplates have been intensively studied recently. However, due to their relatively large sizes, most of them produced multiple lasing modes simultaneously. In order to improve the monochromaticity of perovskite microlasers without significantly affecting the output energy, here we demonstrate a simple way to tailor the number of lasing modes in a microcavity. By pushing an additional microplate to contact the lasing microplate, the number of lasing modes has been effectively reduced and single-mode laser operation has been achieved even though the size of the microplate is orders of magnitude larger than the lasing wavelengths. The corresponding extinction ratio can be as high as 11.8 dB. Our experimental results show that introducing the second microplate and the extremely narrow gain region play essential roles in achieving single-mode laser operation. We believe that our findings will be interesting for the applications of perovskite microdisk lasers.
机译：最近从钙钛矿噬菌体的激光排放量被密集研究。然而，由于它们的尺寸相对较大，它们中的大多数同时产生多种激光模式。为了改善钙钛矿微溶剂的单色性而不会显着影响输出能量，在这里，我们展示了定制微腔中的激光模式的数量的简单方法。通过推动额外的微孔板接触激光微孔板，已经有效地减少了激光模式的数量，并且即使微孔板的尺寸为大于激光波长的级别的级，也已经实现了单模激光操作。相应的消光比可以高达11.8 dB。我们的实验结果表明，引入第二颗微孔板和极窄的增益区域在实现单模激光操作时起着基本作用。我们认为，我们的调查结果将有趣的是Perovskite Microdisk激光器的应用。

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