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arXiv 2007.15434physics.optics
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硅纳米线的光共振弯曲

Resonant bending of silicon nanowires by light

Evgeny Bulgakov, Almas Sadreev

摘要:

两个矩形截面的介质线的耦合引起键合和反键合谐振。后者的特点是极端狭窄的谐振宽度的变化的纵横比的横截面和线之间的距离时,反键谐振模式的形态接近的米氏谐振模式的形态具有高的方位角指数的有效圆线。然后,与这种反键共振共振的平面波引起光学力的前所未有的增强,达到每微米长度的线数纳米牛顿。这些力随平面波的入射角振荡,但总是试图排斥导线。如果线在端部固定,则光学力导致对于线的长度$50μm$和光功率$1.5mW/μm^2$的$100 nm$阶的线的弹性偏转。

英文摘要:

Coupling of two dielectric wires with rectangular cross-section gives rise to bonding and anti-bonding resonances. The latter is featured by extremal narrowing of the resonant width for variation of the aspect ratio of the cross-section and distance between wires when the morphology of the anti-bonding resonant mode approaches to the morphology of the Mie resonant mode of effective circular wire with high azimuthal index. Then plane wave resonant to this anti-bonding resonance gives rise to unprecedent enhancement of the optical forces up to several nano Newtons per micron length of wires. The forces oscillate with angle of incidence of plane wave but always try to repel the wires. If the wires are fixed at the ends the optical forces result in elastic deflection of wires of order $100 nm$ for wires's length $50μm$ and the light power $1.5mW/μm^2$.

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。

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