发表机构
Air Force Research Laboratory; Rice University; University of Michigan; AV Inc.; National Institute of Standards and Technology; North Carolina State University; Lawrence Livermore National Laboratory; University of Minnesota（美国空军研究实验室; 莱斯大学; 密歇根大学; AV公司; 美国国家标准与技术研究院; 北卡罗来纳州立大学; 劳伦斯利弗莫尔国家实验室; 明尼苏达大学）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本文综述了测量手性声子的实验方法，分析其优缺点并展望新方法，旨在为系统研究手性声子性质提供实验指南。
AI 中文摘要
手性声子是量子化的振动，其中固体中的原子运动破坏了非真旋转对称性。在许多情况下，手性声子具有角动量，因此对圆偏振光具有选择性。关于手性声子的基础和应用研究工作正日益受到关注，因为它们在自旋电子学、自旋选择性化学反应、热输运、量子信息处理和生物传感等多个领域具有重要意义，在这些领域中，手性声子所实现的双向自旋-晶格耦合可以被以新的方式加以利用，并可能带来新的功能。迄今为止，在不同材料平台上对手性声子的研究在这些领域内大多独立发展，但实验技术往往是相互关联的。在这篇展望文章中，我们详细描述了当前在手性和非手性材料中实验测量手性声子的方法，以及这些方法的优缺点。最后，我们讨论了测量手性声子的新方法。最终，这项工作旨在为系统研究各种材料系统和应用中手性声子的性质提供一份实验指南。
英文摘要
Chiral phonons are quantized vibrations where the atomic motion in a solid breaks improper rotation symmetries. In many cases, chiral phonons possess angular momenta and are therefore selective to circularly polarized light. Both fundamental and applied research efforts on chiral phonons have been gaining increasing attention owing to their importance in a variety of fields including spintronics, spin-selective chemical reactions, thermal transport, quantum information processing and biosensing, where the bi-directional spin-lattice coupling enabled by chiral phonons can be harnessed in new ways, and potentially lead to new functionalities. Thus far, the studies of chiral phonons across diverse materials platforms have evolved largely independently within these fields, but the experimental techniques are often interrelated. In this perspective, we present a detailed description, as well as advantages and disadvantages of the current approaches for experimentally measuring chiral phonons in chiral and achiral materials. We conclude with a discussion of new methods for measuring chiral phonons. Ultimately, this work seeks to offer an experimental guide for systematically investigating the properties of chiral phonons in various materials systems and applications.
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