论文标题
在连续体中绑定状态下的光力增强
Enhancement of optical forces at bound state in the continuum
论文作者
论文摘要
发光的电动机，车辆甚至太空航行都引起了对基础科学以及在太空，生物医学和传感域中的应用的极大关注。连续体（BIC）中的光学结合状态是散射矩阵的拓扑奇异性，以其独特的光捕获能力和增强的光 - 物质相互作用而闻名。我们表明，BIC模式可以产生增强和可调的光学力和扭矩。接近高Q共振BIC模式时，在力和扭矩光谱中观察到尖锐而可控制的线形。波长和极化可调性作为控制BIC封闭结构上力的有效方法。最后，进行了有限尺寸的模拟，以评估BIC辅助Metavehicle的实际应用。
Light-actuated motors, vehicles, and even space sails have drawn tremendous attention for basic science and applications in space, biomedical, and sensing domains. Optical bound states in the continuum (BIC) are topological singularities of the scattering matrix, known for their unique light trapping capability and enhanced light-matter interaction. We show that BIC modes enable the generation of enhanced and tunable optical forces and torques. A sharp and controllable lineshape is observed in forces and torques spectra when approaching high-Q resonance BIC modes. Wavelength and polarization tunability are presented as an effective method to control the forces on BIC enclosed structures. Finally Finite-size simulations are performed to evaluate the practical application for a BIC assisted metavehicle.
