Molecular Orientation-Dependent Photonic Polarization Engineering in Organic Single-Crystal-Filled Microcavities,The Journal of Physical Chemistry Letters

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Molecular Orientation-Dependent Photonic Polarization Engineering in Organic Single-Crystal-Filled Microcavities
The Journal of Physical Chemistry Letters ( IF 4.8 ) Pub Date : 2024-07-18 , DOI: 10.1021/acs.jpclett.4c01178
Qian Liang ₁ , Xuekai Ma ₂ , Jiahuan Ren _{1,

3} , Cunbin An ₁ , Chunling Gu ₄ , Bo Liao ₅ , Qing Liao ₁

Affiliation

Designing the polarization degree of freedom of light is crucial in many fields and has widespread application in, for example, all-optical circuits. In this work, we find that in an organic microcavity filled with anisotropic single crystals the cavity modes can be modulated to be elliptically polarized, i.e., partially circularly polarized and partially linearly polarized. The circular polarization component originates from the Rashba–Dresselhaus spin splitting, while the linear polarization component is due to the dislocation of linearly polarized modes. The dislocation of the linear polarizations is ascribed to the orientation of individual molecules and the molecular packing arrangement; hence, the linear polarizations can be controlled by properly structuring the molecular distributions. Our results pave the way for enriching and engineering the polarization properties of individual optical cavity modes in organic microstructures, which may favor the development of polarized lasers with various polarizations.

中文翻译：

有机单晶填充微腔中分子取向相关的光子偏振工程

设计光的偏振自由度在许多领域都至关重要，并且在全光电路等领域有着广泛的应用。在这项工作中，我们发现在填充各向异性单晶的有机微腔中，腔模可以调制为椭圆偏振，即部分圆偏振和部分线偏振。圆偏振分量源自Rashba-Dresselhaus自旋分裂，而线偏振分量则归因于线偏振模式的位错。线性偏振的错位归因于单个分子的方向和分子堆积排列；因此，可以通过适当构造分子分布来控制线性偏振。我们的研究结果为丰富和设计有机微结构中各个光学腔模式的偏振特性铺平了道路，这可能有利于各种偏振的偏振激光器的发展。

更新日期：2024-07-18

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