当前位置: X-MOL 学术ACS Photonics › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Theory of Nanoscale Organic Cavities: The Essential Role of Vibration-Photon Dressed States
ACS Photonics ( IF 7 ) Pub Date : 2017-11-20 00:00:00 , DOI: 10.1021/acsphotonics.7b00728
Felipe Herrera 1 , Frank C. Spano 2
Affiliation  

The interaction of organic molecules and molecular aggregates with electromagnetic fields that are strongly confined in nanoscale optical cavities has allowed the observation of exotic quantum regimes of light–matter interaction at room temperature, for a wide variety of cavity materials and geometries. Understanding the universal features of such organic cavities represents a significant challenge for theoretical modeling, as experiments show that these systems are characterized by an intricate competition between coherent and dissipative processes involving entangled nuclear, electronic and photonic degrees of freedom. In this review, we discuss a new theoretical framework that can successfully describe organic cavities under strong light–matter coupling. The theory combines standard concepts in chemical physics and quantum optics to provide a microscopic description of vibronic organic polaritons that is fully consistent with available experiments, and yet is profoundly different from the common view of organic polaritons. We show that by introducing a new class of vibronic polariton wave functions with a photonic component that is dressed by intramolecular vibrations, the new theory can offer a consistent solution to some of the long-standing puzzles in the interpretation of organic cavity photoluminescence. Throughout this review, we confront the predictions of the model with spectroscopic observations, and describe the conditions under which the theory reduces to previous approaches. We finally discuss possible extensions of the theory to account for realistic complexities of organic cavities such spatial inhomogeneities and the multimode nature of confined electromagnetic fields.

中文翻译:

纳米有机腔理论:振动光子打扮状态的基本作用。

有机分子和分子聚集体与强烈限制在纳米级光学腔中的电磁场之间的相互作用,使得人们可以观察到室温下光腔相互作用的奇异量子态,适用于各种腔体材料和几何形状。了解此类有机腔体的普遍特征对理论建模提出了重大挑战,因为实验表明,这些系统的特征是相干和耗散过程之间复杂的竞争,涉及核,电子和光子纠缠度的纠缠。在这篇综述中,我们讨论了一个新的理论框架,该框架可以成功地描述强光物质耦合下的有机腔。该理论结合了化学物理学和量子光学中的标准概念,提供了对振动有机极化子的微观描述,与现有实验完全一致,但与有机极化子的普遍看法却有很大不同。我们显示出,通过引入一类新的振动子极化波函数,其光子分量受到分子内振动的影响,新理论可以为解释有机腔体光致发光中的一些长期难题提供一致的解决方案。在整个审查过程中,我们用光谱学观察来面对模型的预测,并描述了将该理论简化为先前方法的条件。
更新日期:2017-11-21
down
wechat
bug