高 Q 值、低阈值的整体钙钛矿薄膜垂直腔面发射激光器。
High-Q, Low-Threshold Monolithic Perovskite Thin-Film Vertical-Cavity Lasers.
机构信息
School of Engineering, Brown University, Providence, RI, 02912, USA.
Department of Electrical Engineering, Yale University, New Haven, CT, 06511, USA.
出版信息
Adv Mater. 2017 Apr;29(16). doi: 10.1002/adma.201604781. Epub 2017 Feb 17.
A vertical-cavity surface-emitting perovskite laser is achieved using a microcavity configuration where CH NH PbI thin solid films are embedded within a custom GaN-based high-quality (Q-factor) resonator. This single-mode perovskite laser reaches a low threshold (≈7.6 µJ cm ) at room temperature and emits spatially coherent Gaussian laser beams. The devices allow direct access to the study of perovskite gain dynamics and material robustness.
采用微腔结构实现了垂直腔面发射钙钛矿激光器，其中 CHNH PbI 薄膜嵌入在定制的基于 GaN 的高质量（Q 因子）谐振器中。这种单模钙钛矿激光器在室温下达到低阈值（约 7.6 µJ cm ），发射空间相干的高斯激光束。这些器件可以直接研究钙钛矿增益动力学和材料稳定性。
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