ZnO-based random lasing and their sensing applications: a mini-review

IF 3.674 4区 工程技术 Q1 Engineering
Abdullah Abdulhameed
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引用次数: 0

Abstract

Random lasers operate without a traditional resonator cavity compared with traditional lasers, instead relying on multiple scattering events within a disordered medium to amplify light. Their emission spectrum and spatial characteristics are determined by the disorder within the medium rather than by specific resonant modes. ZnO nanostructures are ideal for random lasers due to their strong light emission properties and high refractive index, facilitating efficient light scattering and amplification within the disordered medium. Additionally, their wide bandgap and ability to support both optical and electrical pumping make them versatile for various laser applications. ZnO-based random lasers unlock a future beyond high-resolution displays and foldable phones due to their speckle-free emission and a knack for scattering. In medicine, they promise label-free cellular insights, targeted cancer treatments, and miniaturized diagnostics. However, the future of ZnO-based random lasers demands careful crafting. Scalability, cost, and longevity remain hurdles. This review first addresses the synthesis parameters controlling ZnO nanostructures as gain media in random lasers. Then, recent advances in random laser design and performance are discussed, followed by an explanation of the pumping mechanisms. The review concludes by addressing the potential applications of ZnO-based random lasers, including sensors, imaging, medical and display technologies.

Abstract Image

氧化锌基随机激光及其传感应用:微型综述
与传统激光器相比,随机激光器在工作时没有传统的谐振腔,而是依靠无序介质中的多次散射事件来放大光线。其发射光谱和空间特性由介质中的无序状态而非特定的谐振模式决定。氧化锌纳米结构具有强光发射特性和高折射率,有利于在无序介质中进行有效的光散射和放大,因此是随机激光器的理想材料。此外,它们的宽带隙和同时支持光泵浦和电泵浦的能力使它们成为各种激光应用的多面手。由于氧化锌无斑点发射和散射诀窍,基于氧化锌的随机激光开启了超越高分辨率显示器和可折叠手机的未来。在医学领域,它们有望实现无标记细胞洞察、癌症靶向治疗和微型化诊断。然而,氧化锌随机激光器的未来需要精心打造。可扩展性、成本和寿命仍然是障碍。本综述首先探讨了控制作为随机激光器增益介质的氧化锌纳米结构的合成参数。然后,讨论了随机激光器设计和性能方面的最新进展,接着解释了泵浦机制。综述最后探讨了基于氧化锌的随机激光器的潜在应用,包括传感器、成像、医疗和显示技术。
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
Applied Nanoscience
Applied Nanoscience Materials Science-Materials Science (miscellaneous)
CiteScore
7.10
自引率
0.00%
发文量
430
期刊介绍: Applied Nanoscience is a hybrid journal that publishes original articles about state of the art nanoscience and the application of emerging nanotechnologies to areas fundamental to building technologically advanced and sustainable civilization, including areas as diverse as water science, advanced materials, energy, electronics, environmental science and medicine. The journal accepts original and review articles as well as book reviews for publication. All the manuscripts are single-blind peer-reviewed for scientific quality and acceptance.
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