Zhao Chen, Fan Zhang, Qi Zhang, Juanjuan Ren, He Hao, Xueke Duan, Pengfei Zhang, Tiancai Zhang, Ying Gu, Qihuang Gong, "Blue-detuned optical atom trapping in a compact plasmonic structure," Photonics Res. 5, 436 (2017)

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- Photonics Research
- Vol. 5, Issue 5, 436 (2017)

Fig. 1. (a) Schematic of the array of nanoholes in a metallic film. Inset shows the unit cell of the presented nanohole arrays and the geometrical parameter symbols. (b) Simulation results of the normalized zero-order transmission spectrum. (c) Field distribution of | E | in the nanohole at the air–gold interface when a 760 nm laser illuminates from the − z direction.

Fig. 2. (a) Field distributions of | E | in the x – z plane when y is 0 nm. (b) Normalized intensity distributions of | E | 2 along the dark dashed line in (a).

Fig. 3. (a) Calculated total potential along the dark dashed line in Fig. 2(a) . (b) Potential distributions for point P in the x – y plane. U x and U tot − x represent the optical dipole potential and the total potential along the x direction, respectively. The incident optical power P 0 = 1 mW .

Fig. 4. (a) Contour plot of a trapping total potential in the x – y plane at z = 372 nm for a unit cell. (b) Periodic arrays.

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