| Title | Blue-detuned optical atom trapping in a compact plasmonic structure |
| Authors | Chen, Zhao Zhang, Fan Zhang, Qi Ren, Juanjuan Hao, He Duan, Xueke Zhang, Pengfei Zhang, Tiancai Gu, Ying Gong, Qihuang |
| Affiliation | Peking Univ, Dept Phys, Collaborat Innovat Ctr Quantum Matter, State Key Lab Mesoscop Phys, Beijing 100871, Peoples R China. Shanxi Univ, Collaborat Innovat Ctr Extreme Opt, Taiyuan 030006, Shanxi, Peoples R China. Shanxi Univ, Inst Optoelect, State Key Lab Quantum Opt & Quantum Opt Devices, Taiyuan 030006, Shanxi, Peoples R China. Peking Univ, Dept Phys, Collaborat Innovat Ctr Quantum Matter, State Key Lab Mesoscop Phys, Beijing 100871, Peoples R China. Gu, Y (reprint author), Shanxi Univ, Collaborat Innovat Ctr Extreme Opt, Taiyuan 030006, Shanxi, Peoples R China. |
| Keywords | SURFACE-PLASMONS ULTRACOLD ATOMS SINGLE-ATOM TRANSMISSION ARRAYS RESONANCE |
| Issue Date | 2017 |
| Publisher | PHOTONICS RESEARCH |
| Citation | PHOTONICS RESEARCH.2017,5(5),436-440. |
| Abstract | We theoretically propose blue-detuned optical trapping for neutral atoms via strong near-field interfacing in a plasmonic nanohole array. The optical field at resonance forms a nanoscale-trap potential with an FWHM of 200 nm and about similar to 370 nm away from the nanohole; thus, a stable 3D atom trapping independent of the surface potential is demonstrated. The effective trap depth is more than 1 mK when the optical power of trapping light is only about 0.5 mW, while the atom scattering rate is merely about 3.31 s(-1), and the trap lifetime is about 800 s. This compact plasmonic structure provides high uniformity of trap depths and a two-layer array of atom nanotraps, which should have important applications in the manipulation of cold atoms and collective resonance fluorescence. (C) 2017 Chinese Laser Press |
| URI | http://hdl.handle.net/20.500.11897/470609 |
| ISSN | 2327-9125 |
| DOI | 10.1364/PRJ.5.000436 |
| Indexed | SCI(E) |
| Appears in Collections: | 物理学院 人工微结构和介观物理国家重点实验室 |
