论文标题
介电磁盘光学结合的巨大谐振增强
Giant resonant enhancement of optical binding of dielectric disks
论文作者
论文摘要
每个磁盘和磁盘之间距离的纵横比上的两种参数变化会导致避免了单个磁盘共振的众多事件。对于这些事件，杂交抗束缚谐振模式可以获得与MIE共振模式接近的形态，并具有高轨道的等效球动量。这种共振的$ q $系数可以超过隔离磁盘的$ q $因子，这一数量的幅度为两个订单。我们表明，双重不连贯的反反击散发同轴贝塞尔束具有$ 1MW/μm^2 $的频率共振，以谐振到这种反键模模式，从而导致空前的光学结合力，直到数十年来，用于硅微米尺寸尺寸的纳米Newtons多达数十年。我们还表明，光学力的大小和迹象在很大程度上取决于贝塞尔束的纵向波矢量。
Two-parametric variation over the aspect ratio of each disk and distance between disks gives rise to numerous events of avoided crossing of resonances of individual disks. For these events the hybridized anti-bonding resonant modes can acquire a morphology close to the Mie resonant mode with high orbital momentum of equivalent sphere. The $Q$ factor of such resonance can exceed the $Q$ factor of isolated disk by two orders in magnitude. We show that dual incoherent counter propagating coaxial Bessel beams with power $1mW/μm^2$ with frequency resonant to such a anti-bonding modes result in unprecedented optical binding forces up to decades of nano Newtons for silicon micron size disks. We show also that a magnitude and sign of optical forces strongly depend on the longitudinal wave vector of the Bessel beams.
