Circularly Polarized Photoluminescence from Nanostructured Arrays of Light Emitters
Circularly Polarized Photoluminescence from Nanostructured Arrays of Light Emitters
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DOI：
10.1021/acsaom.2c00130
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发表时间：
2023-01
期刊：
影响因子：
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通讯作者：
Maya Ramamurthy;Pavlos Pachidis;Bryan M. Cote;V. Ferry
中科院分区：
文献类型：
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作者：
Maya Ramamurthy;Pavlos Pachidis;Bryan M. Cote;V. Ferry
精心设计的超材料可以通过多种方式影响光发射器的特性，包括塑造发光的方向性和偏振。然而，这些特性在发光体均匀涂覆超材料的系统中受到限制。在这里，我们研究和设计由金纳米棒和纳米图案光发射器组成的超材料。我们系统地研究了空间平均、偶极子方向、手性、近场效应和其他因素对这些多材料系统的作用。最后，我们讨论了创建可以以任意角度发射任意圆偏振光致发光的超表面的多种设计路线。这些系统同时表现出高光致发光强度和定制的、定向的和偏振的光致发光。
Strategically designed metamaterials can influence the properties of light emitters in several ways, including shaping of the directionality and polarization of luminescence. These properties, however, are limited in systems where the luminophores uniformly coat the metamaterial. Here, we study and design metamaterials composed of both Au nanobars and nanopatterned light emitters. We systematically investigate the role of spatial averaging, dipole orientation, chirality, near-field effects, and other factors for these multimaterial systems. Finally, we discuss multiple design routes to create metasurfaces that can emit photoluminescence of any circular polarization at any arbitrary angle. These systems simultaneously exhibit high photoluminescence intensity and tailored, directional, and polarized photoluminescence.