论文标题
当等离子体胶体符合光学涡旋时 - 简短审查
When Plasmonic Colloids Meet Optical Vortices -- A Brief Review
论文作者
论文摘要
结构化的光已成为以微米和亚微米量表进行询问和操纵物质的重要工具。结构化光的一种形式是光学涡流束。这些涡旋的螺旋波前具有轨道角动量，可以转移到棕色胶体上。当胶体由金属纳米结构（例如银和金）制成时，谐振光学效应起着至关重要的作用，相互作用会导致复杂的动力学和组装。这篇简短的评论旨在讨论有关用光学涡旋及其格子捕获等离子体胶体的最新工作。光散射和吸收的作用对特定概述的基础力和扭矩具有重要意义。光学涡流中自旋和轨道角动量的影响会导致自旋轨道耦合动力学，并且这些效果以文献的示例突出显示。除了组装和动力学外，还讨论了血浆胶体在涡旋晶格的影响下增强的血浆胶体运动。强调了了解光学涡流与等离子胶体之间相互作用的教学方面。
Structured light has emerged as an important tool to interrogate and manipulate matter at micron and sub-micron scale. One form of structured light is an optical vortex beam. The helical wavefront of these vortices carry orbital angular momentum which can be transferred to a Brownian colloid. When the colloid is made of metallic nanostructures, such as silver and gold, resonant optical effects play a vital role, and the interaction leads to complex dynamics and assembly. This brief review aims to discuss some recent work on trapping plasmonic colloids with optical vortices and their lattices. The role of optical scattering and absorption has important implications on the underlying forces and torques, which is specifically enunciated. The effect of spin and orbital angular momentum in an optical vortex can lead to spin-orbit coupling dynamics, and these effects are highlighted with examples from the literature. In addition to assembly and dynamics, enhanced Brownian motion of plasmonic colloids under the influence of a vortex-lattice is discussed. The pedagogical aspects to understand the interaction between optical vortex and plasmonic colloids is emphasized.
