Transport and localization of light inside a dye-filled microcavity
Transport and localization of light inside a dye-filled microcavity
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DOI：
10.1103/physreva.102.053517
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发表时间：
2020-11-25
影响因子：
2.9
通讯作者：
Mintert, Florian
中科院分区：
文献类型：
--
作者：
Dhar, Himadri S.;Rodrigues, Joao D.;Mintert, Florian
多模、充满染料的微腔内光与物质相互作用的驱动-耗散性质使其成为研究非平衡现象（例如输运）的理想系统。在这项工作中，我们研究了光如何在不相干的吸收和发射过程的介导下在这样的微腔内有效传输。特别是，我们表明存在两种不同的运输方式，即。导电性和局域性，是由染料分子的热化效应与驱动和损耗的非平衡影响之间复杂的相互作用引起的。当几个局域腔模式经历动态相变到凝聚态或激光态时，就会发生光在导电状态下的传播。此外，我们观察到，虽然这种传输对于空腔电位的弱无序来说是稳健的，但即使在良好的热化条件下，强无序也会导致光的局域化。重要的是，所展示的光传输和定位是非平衡动力学的表现，而不是系统中的任何相干干扰。
The driven-dissipative nature of light-matter interaction inside a multimode, dye-filled microcavity makes it an ideal system to study nonequilibrium phenomena, such as transport. In this work, we investigate how light is efficiently transported inside such a microcavity, mediated by incoherent absorption and emission processes. In particular, we show that there exist two distinct regimes of transport, viz. conductive and localized, arising from the complex interplay between the thermalizing effect of the dye molecules and the nonequilibrium influence of driving and loss. The propagation of light in the conductive regime occurs when several localized cavity modes undergo dynamical phase transitions to a condensed, or lasing, state. Furthermore, we observe that, while such transport is robust for weak disorder in the cavity potential, strong disorder can lead to localization of light even under good thermalizing conditions. Importantly, the exhibited transport and localization of light is a manifestation of the nonequilibrium dynamics rather than any coherent interference in the system.