利用三角形介观Janus棱镜形成具有可调弯曲角度的光子钩
Photonic Hook with Modulated Bending Angle Formed by Using Triangular Mesoscale Janus Prisms
AI总结：
本研究提出三角形介观Janus棱镜设计，通过时域有限差分模拟揭示不对称涡旋产生长光子钩，调节棱镜间距可有效控制其长度与弯曲角度，且宽度突破衍射极限，在光镊、纳米粒子操控和光子电路中有应用潜力。
摘要：
在本研究中，我们提出了一种新型三角形介观Janus棱镜设计，用于产生长光子钩。采用基于时域有限差分法的数值模拟来研究光子钩的形成机制。计算了在不同折射率和两个三角形微棱镜间距下微棱镜附近的电场强度分布。强度分布的不对称涡旋导致了具有大弯曲角度的长光子钩。通过改变两个三角形微棱镜之间的间距，可以有效地调制光子钩的长度和弯曲角度。此外，光子钩的窄宽度突破了衍射极限。三角形Janus微棱镜在光镊、纳米粒子分选与操控以及光子电路等实际应用中具有很高的潜力。
英文摘要：
In this study, we propose a novel design of the triangular mesoscale Janus prisms for the generation of the long photonic hook. The numerical simulations based on the finite-difference time-domain method are used to examine the formation mechanism of the photonic hook. The electric intensity distributions near the micro-prisms are calculated for operating at different re-fractive indices and spaces of the two triangular micro-prisms. The asymmetric vortexes of in-tensity distributions result in the long photonic hook with large bending angle. The length and the bending angle of the photonic hook are efficiently modulated by changing the space be-tween the two triangular micro-prisms. Moreover, the narrow width of the photonic hook is achieved beyond the diffraction limit. The triangular Janus micro-prisms have high potential for practical applications in optical tweezers, nanoparticle sorting and manipulation and photonic circuits.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
