Characteristics of multi-mode lasing in cesium lead bromide perovskite microwires with an isosceles right triangle cross-section

Sheng Chan Wu, Ya Chi Liu, Li Jyuan Lin, Yia Chung Chang, Hsu Cheng Hsu

研究成果: Article同行評審

3 引文 斯高帕斯(Scopus)

摘要

The CsPbBr3 microwires with unique isosceles right triangle cross-sections are commonly observed via chemical vapor deposition method. In this work, we study the correlations between measured multi-mode lasing behaviors and the simulation of the mode patterns inside the triangular-rod microcavity. We confirm that lasing action with higher-order transverse modes can well sustain, even when these modes experience large optical loss due to the isosceles triangle cross-section. By comparing the experimental and simulation results, the higher-order transverse modes tend to show up prior to the fundamental transverse modes for wider microwires. We attribute this behavior to the nonuniform field distribution caused by the high absorption efficiency of CsPbBr3. We also elaborate on the difficulties to sustain the whispering gallery mode in the CsPbBr3 triangular-rod microcavity, which implies that the lateral dimension and geometry of the cavity should be considered carefully for the future design of low threshold wire-based laser devices.

原文English
頁(從 - 到)37797-37808
頁數12
期刊Optics Express
29
發行號23
DOIs
出版狀態Published - 2021 11月 8

All Science Journal Classification (ASJC) codes

  • 原子與分子物理與光學

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