Organic small molecules are proposed and demonstrated as a platform to realize arbitrary complex refractive index modulation and to explore passive parity‐time (PT) symmetry breaking in a composite organic thin film. The strong optical response and synthetic freedom afforded by small molecules and polymers make this material class an exciting opportunity to realize new PT‐based photonic functionality for devices throughout the visible and near‐infrared spectrum.

中文翻译：

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复杂折射率调制在有机复合薄膜中的被动PT对称性

提出并证明了有机小分子是实现任意复杂折射率调制并探索复合有机薄膜中被动奇偶时间（PT）对称性破坏的平台。小分子和聚合物提供的强大的光学响应和合成自由度，使该材料类别成为了一个令人兴奋的机会，可以为整个可见光和近红外光谱的设备实现新的基于PT的光子功能。