Polaron-Polariton Bose-Einstein Condensation Lasing via Longitudinal Optical Phonon Scattering in GaN-Based Microcavity.

IF 9.6 1区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Nano Letters Pub Date : 2025-06-18 Epub Date: 2025-06-09 DOI:10.1021/acs.nanolett.5c01198

Huying Zheng, Xuebing Gong, Runchen Wang, Junxing Dong, Lisheng Wang, Jingzhuo Wang, Yifan Zhang, Xianghu Wang, Hua Shi, Dezhen Shen, Yiyun Zhang, Hai Zhu

{"title":"Polaron-Polariton Bose-Einstein Condensation Lasing via Longitudinal Optical Phonon Scattering in GaN-Based Microcavity.","authors":"Huying Zheng, Xuebing Gong, Runchen Wang, Junxing Dong, Lisheng Wang, Jingzhuo Wang, Yifan Zhang, Xianghu Wang, Hua Shi, Dezhen Shen, Yiyun Zhang, Hai Zhu","doi":"10.1021/acs.nanolett.5c01198","DOIUrl":null,"url":null,"abstract":"<p><p>Exciton-polaritons, hybrid states composed of excitons and photons under strong coupling, play a crucial role in investigating Bose-Einstein condensation (BEC) and optoelectronics. However, the relaxation bottleneck in exciton-polaritons, arising from reduced scattering efficiency with acoustic phonons, hinders the achievement of thermal equilibrium Bose-Einstein condensation (BEC). Here, by invoking the polaronic effect of the exciton, we present the first observation of polaron-polariton BEC in a GaN-based microcavity. The dispersion pattern in k-space reveals a typical middle polariton (MP) branch of polaron-polaritons. This unique dispersion structure enables a novel relaxation route through LO-phonon-mediated scattering for polaron-polaritons, overcoming the phonon bottleneck observed in exciton-polaritons. By utilizing this mechanism, we achieve a robust polaron-polariton BEC, which is confirmed by the characteristics of massive occupation of the ground state, linear polarization buildup, and long-range spatial coherence. Our findings provide new insights into thermal equilibrium BEC and high-performance polariton quantum devices with GaN materials.</p>","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":" ","pages":"9605-9613"},"PeriodicalIF":9.6000,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nano Letters","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1021/acs.nanolett.5c01198","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/6/9 0:00:00","PubModel":"Epub","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

Abstract

Exciton-polaritons, hybrid states composed of excitons and photons under strong coupling, play a crucial role in investigating Bose-Einstein condensation (BEC) and optoelectronics. However, the relaxation bottleneck in exciton-polaritons, arising from reduced scattering efficiency with acoustic phonons, hinders the achievement of thermal equilibrium Bose-Einstein condensation (BEC). Here, by invoking the polaronic effect of the exciton, we present the first observation of polaron-polariton BEC in a GaN-based microcavity. The dispersion pattern in k-space reveals a typical middle polariton (MP) branch of polaron-polaritons. This unique dispersion structure enables a novel relaxation route through LO-phonon-mediated scattering for polaron-polaritons, overcoming the phonon bottleneck observed in exciton-polaritons. By utilizing this mechanism, we achieve a robust polaron-polariton BEC, which is confirmed by the characteristics of massive occupation of the ground state, linear polarization buildup, and long-range spatial coherence. Our findings provide new insights into thermal equilibrium BEC and high-performance polariton quantum devices with GaN materials.

Abstract Image

查看原文本刊更多论文

氮化镓基微腔中纵向光学声子散射的极化子-极化子玻色-爱因斯坦凝聚激光。

激子-极化子是由激子和光子在强耦合下组成的杂化态，在研究玻色-爱因斯坦凝聚（BEC）和光电子学中起着至关重要的作用。然而，由于声子散射效率降低，导致激子-极化子中的弛缓瓶颈阻碍了热平衡玻色-爱因斯坦凝聚（BEC）的实现。在这里，通过调用激子的极化子效应，我们首次在gan基微腔中观察到极化子-极化子BEC。k空间色散模式揭示了极化子-极化子的典型中极化子分支。这种独特的色散结构为极化子-极化子提供了一种新的弛豫途径，克服了在激子-极化子中观察到的声子瓶颈。利用这一机制，我们实现了一个鲁棒的极化子-极化子BEC，基态的大量占据、线性极化积累和远程空间相干特性证实了这一点。我们的发现为GaN材料的热平衡BEC和高性能极化子量子器件提供了新的见解。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

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.