Optical manipulation techniques are important in many fields. For instance, they enable bottom-up assembly of nanomaterials and high-resolution and in situ analysis of biological cells and molecules, providing opportunities for discovery of new materials, medical diagnostics, and nanomedicines. Traditional optical tweezers have their applications limited due to the use of rigorous optics and high optical power. New strategies have been established for low-power optical manipulation techniques. Optothermal manipulation, which exploits photon–phonon conversion and matter migration under a light-controlled temperature gradient, is one such emerging technique. Elucidation of the underlying physics of optothermo–matter interaction and rational engineering of optical environments are required to realize diverse optothermal manipulation functionalities.

中文翻译：

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胶体颗粒和活细胞的光热操纵

光学操纵技术在许多领域都很重要。例如，它们可以实现纳米材料的自下而上组装以及高分辨率和原位组装生物细胞和分子的分析，为发现新材料，医学诊断和纳米药物提供了机会。由于使用严格的光学器件和高光功率，传统的光学镊子的应用受到限制。已经建立了针对低功率光学操纵技术的新策略。一种利用光子-声子转换和在光控温度梯度下物质迁移的光热操纵技术就是这样一种新兴技术。需要阐明光热-物质相互作用的基本物理原理和光学环境的合理设计，以实现各种光热操纵功能。