Ultracompact and Uniform Nanoemitter Array Based on Periodic Scattering

IF 11.3 1区化学 Q1 CHEMISTRY, PHYSICAL

ACS Catalysis Pub Date : 2024-09-27 DOI:10.1021/acs.nanolett.4c03690

Zhen Yin, Haijun Tang, Kaiyang Wang, Xudong Zhang, Xinbo Sha, Wenchao Wang, Shumin Xiao, Qinghai Song

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Abstract

As emerging gain materials, lead halide perovskites have drawn considerable attention in coherent light sources. With the development of patterning and integration techniques, a perovskite laser array has been realized by distributing perovskite microcrystals periodically. Nevertheless, the packing density is limited by the crystal size and the channel gap distance. More importantly, the lasing performance for individual laser units is quite random due to variation of size and crystal quality. Herein an ultracompact perovskite nanoemitter array with uniform emission has been demonstrated. Individual emitters are formed via scattering evanescent components from a shared Fabry–Perot laser, ensuring uniform lasing emission in a unit cell with a side length of 160 nm and lattice constant of 400 nm. And the periodic silicon scatterers do not deteriorate the lasing threshold dramatically. In addition, the surface emitting efficiency increased significantly. The direct integration of a densely packed nanoemitter array with a silicon platform promises high-throughput sensing and high-capacity optical interconnects.

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基于周期性散射的超小型均匀纳米发射器阵列

作为新兴的增益材料，卤化铅包晶石在相干光源领域引起了广泛关注。随着图案化和集成技术的发展，通过周期性地分布光致发光体微晶体，已经实现了光致发光体激光阵列。然而，堆积密度受到晶体尺寸和通道间隙距离的限制。更重要的是，由于晶体尺寸和质量的不同，单个激光单元的激光性能也存在很大的随机性。在此，我们展示了一种具有均匀发射的超小型过氧化物纳米发射器阵列。单个发射器是通过散射来自共享法布里-珀罗激光器的蒸发分量而形成的，从而确保了边长为 160 nm、晶格常数为 400 nm 的单元池中均匀的激光发射。而且，周期性硅散射体不会显著降低激光阈值。此外，表面发射效率也显著提高。将密集排列的纳米发射器阵列与硅平台直接集成，有望实现高通量传感和大容量光互连。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

ACS Catalysis CHEMISTRY, PHYSICAL-

CiteScore

20.80

自引率

6.20%

发文量

1253

审稿时长

1.5 months

期刊介绍： ACS Catalysis is an esteemed journal that publishes original research in the fields of heterogeneous catalysis, molecular catalysis, and biocatalysis. It offers broad coverage across diverse areas such as life sciences, organometallics and synthesis, photochemistry and electrochemistry, drug discovery and synthesis, materials science, environmental protection, polymer discovery and synthesis, and energy and fuels. The scope of the journal is to showcase innovative work in various aspects of catalysis. This includes new reactions and novel synthetic approaches utilizing known catalysts, the discovery or modification of new catalysts, elucidation of catalytic mechanisms through cutting-edge investigations, practical enhancements of existing processes, as well as conceptual advances in the field. Contributions to ACS Catalysis can encompass both experimental and theoretical research focused on catalytic molecules, macromolecules, and materials that exhibit catalytic turnover.