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| 固体薄膜有机染料在共振耦合下的光物质混合态研究 |
| Study on the light material mixing states of organic dyes in solid film under resonance coupling |
| 投稿时间：2024-03-08 |
| DOI：10.3969/j.issn.1005-5630.202403080045 |
| 中文关键词: 强耦合 能量转移 光学微腔 |
| 英文关键词:strong coupling energy transfer optical microcavity |
| 基金项目: |
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| 摘要点击次数: 98 |
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| 中文摘要: |
| 耦合到腔中的有机染料供体与受体在形成光-物质混合态时，它们之间的非辐射能量转移被证明是极其有效的。采用物理分隔的复合有机染料薄膜结构，于单片石英片上构建了一个法布里–珀罗（Fabry–Pérot，F-P）腔，以形成光-物质混合态。该设计对染料浓度和薄膜厚度具有良好可协调性，通过调节腔长可精确匹配激子共振频率，产生明显的拉比分裂现象，使腔内染料的吸收和发射特性发生显著改变。同时，该结构在时间尺度上表现出相对稳定性，在保存1个月和3个月后，其吸收光谱和发射光谱均无明显变化。这种结构的构建为用于能量转化的薄膜器件的开发提供了新的可能性，拓展了该类器件的设计思路，对能量的收集与传输研究具有重要意义。 |
| 英文摘要: |
| The non-radiative energy transfer between the organic dye donor and acceptor coupled into the cavity has been proven to be extremely effective when forming a light-matter mixed state. In this study, a physically separated composite organic dye film structure was used to construct a Fabry–Pérot (F-P) cavity for the formation of a light-matter mixed state, and this structure was fabricated on a single quartz wafer. This structure exhibited excellent tolerance to variations in dye concentration and film thickness. By adjusting the cavity length, the exciton resonance frequency could be accurately matched, resulting in obvious Rabi splitting, which significantly changed the absorption and emission characteristics of the dye in the cavity. At the same time, the structure showed relative stability on the time scale. After the storage for 1 month and 3 months, there was no obvious change in its absorption spectrum and emission spectrum. The construction of this structure opens up new possibilities for the development of thin-film devices for energy conversion, expands the design concepts of such devices, and holds great significance for the study of energy collection and transmission processes. |
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