极化子激光器的最新进展

IF 7.4 1区 物理与天体物理 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC
Long Zhang , Jiaqi Hu , Jinqi Wu , Rui Su , Zhanghai Chen , Qihua Xiong , Hui Deng
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引用次数: 4

摘要

半导体激光器结构紧凑、速度快、效率高,在现代科学技术中无处不在。它们需要相对较低的功率,因此非常适合信息技术中的应用。然而,在传统的半导体激光器中,达到激光阈值所需的功率有一个基本的下界,由达到人口反转所需的载流子密度或透明度条件决定。这一限制可以在一种新型激光器中克服,即在不同机制下工作的极化子激光器。极化子激光器的相干光发射来自于极化子凝聚体,这是一种相干的、热力学上有利的多体态,形成于比居群反转密度低得多的载流子密度下。此外,由于极化子是通过激子和腔光子之间的强耦合形成的物质-光混合模式,极化子激光器可以通过光子和激子组分来控制,从而在调谐和控制模式特性方面具有更大的灵活性。在过去的几十年里,这些前景推动了对极化激子激光器的大量研究。在本文中,我们将首先回顾极化子和极化子激光器的基本性质,然后介绍具有非常规性质和功能的极化子激光器的最新发展,以及在室温极化子激光器的新材料平台上的发展。最后,我们将简要讨论极化激子激光器的实际应用前景。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Recent developments on polariton lasers

Semiconductor lasers are ubiquitous in modern science and technology for they are compact, fast, and efficient. They require relatively low power and thus are well suited for applications in the information technology. However, in conventional semiconductor lasers, the power required to reach the lasing threshold has a fundamental lower bound determined by the carrier density required to reach population inversion, or the transparency condition. This limitation can be overcome in a new type of laser, a polariton laser, which operates under a different mechanism. Coherent light emission from a polariton laser results from a polariton condensate, which is a coherent, thermodynamically favored many-body state, formed at a much lower carrier density than the population inversion density. Furthermore, since polaritons are matter-light hybrid modes formed via strong coupling between excitons and cavity photons, polariton lasers can be controlled via both the photon and exciton components, allowing greater flexibility in tuning and controlling the mode properties. These prospects have propelled intense research effort on polariton lasers in the past few decades. In this article, we will first review the essential properties of polaritons and polariton lasers, followed by recent developments on polariton lasers with unconventional properties and functionalities, and on new material platforms where room temperature polariton lasers have been demonstrated. We will conclude with a brief discussion on prospects of practical applications of polariton lasers.

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来源期刊
Progress in Quantum Electronics
Progress in Quantum Electronics 工程技术-工程:电子与电气
CiteScore
18.50
自引率
0.00%
发文量
23
审稿时长
150 days
期刊介绍: Progress in Quantum Electronics, established in 1969, is an esteemed international review journal dedicated to sharing cutting-edge topics in quantum electronics and its applications. The journal disseminates papers covering theoretical and experimental aspects of contemporary research, including advances in physics, technology, and engineering relevant to quantum electronics. It also encourages interdisciplinary research, welcoming papers that contribute new knowledge in areas such as bio and nano-related work.
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