Ultracompact and Uniform Nanoemitter Array Based on Periodic Scattering

IF 9.6 1区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Nano Letters 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

Nano Letters 工程技术-材料科学：综合

CiteScore

16.80

自引率

2.80%

发文量

1182

审稿时长

1.4 months

期刊介绍： Nano Letters serves as a dynamic platform for promptly disseminating original results in fundamental, applied, and emerging research across all facets of nanoscience and nanotechnology. A pivotal criterion for inclusion within Nano Letters is the convergence of at least two different areas or disciplines, ensuring a rich interdisciplinary scope. The journal is dedicated to fostering exploration in diverse areas, including: - Experimental and theoretical findings on physical, chemical, and biological phenomena at the nanoscale - Synthesis, characterization, and processing of organic, inorganic, polymer, and hybrid nanomaterials through physical, chemical, and biological methodologies - Modeling and simulation of synthetic, assembly, and interaction processes - Realization of integrated nanostructures and nano-engineered devices exhibiting advanced performance - Applications of nanoscale materials in living and environmental systems Nano Letters is committed to advancing and showcasing groundbreaking research that intersects various domains, fostering innovation and collaboration in the ever-evolving field of nanoscience and nanotechnology.