期刊文献+

通过圆孔衍射实现冷分子(或冷原子)囚禁的光学偶极阱 被引量:6

Optical Dipole Traps for Cold Molecules (or Cold Aatoms) Using a Red-Detuned Small-Hole Diffracted Light Field
原文传递
导出
摘要 以单色标量波衍射理论为基础,研究单色平面波由圆孔衍射产生实现冷分子(或冷原子)光学囚禁的光阱。运用圆孔衍射理论分析讨论了光学偶极阱的光强分布、光学势及偶极力,并导出了有关光阱的几何参量、光强分布、强度梯度及其曲率与光学系统参量(如照明光波的波长、小孔的孔径)间的解析关系。研究表明,当激光功率与波长分别为P=500 W和λ=1.08μm,小孔半径a=20μm时,产生囚禁甲烷CH4分子的光阱光学势约为57.9μK。通过圆孔衍射可实现冷分子或冷原子囚禁,该方案不仅简单可行、操作方便,而且在冷分子物理、原子光学、分子光学和量子光学等领域中有着广阔的应用前景。 Based on the diffraction theory of the monochromatic scalar wave, an optical trap using a red-detuned small-hole diffracted light field is investigated. The intensity distribution of the optical trap and its optical potential and optical dipole force are colculated by aperture diffraction theory, and derive some analytical relations between the characteristic parameters of the optical trap (including geometric parameters, intensity gradients and theirs curvatures) and the parameters of the optical system (including laser wavelength and aperture radius) are derived. The study shows that when P= 500 W, λ= 1. 080 μm and α = 20μm, the optical trapping potential for cold CH4 molecules is about 57.9 μK. So our trap scheme is not only simple and convenient in the manipulation and control of cold molecular (or cold atoms), but also has wide potential applications in the fields of cold molecular physics, atomic optics, molecule optics even quantum optics,and so on.
出处 《光学学报》 EI CAS CSCD 北大核心 2007年第10期1852-1857,共6页 Acta Optica Sinica
基金 国家自然科学基金(10174050 10374029 10674047) 国家自然科学重点基金(10434060) 上海市重点学科建设基金 教育部211专项基金项目资助课题
关键词 物理光学 原子分子囚禁 圆孔衍射 光学偶极阱 physical optics atomic and molecular trapping diffraction of a circular aperture optical dipole trap
作者简介 陈丽雅(1973-),女,浙江温州人,讲师,硕士研究生,主要从事原子分子光学方面的研究。E-mail:chenliya@wzu.edu.cn 印建平(1955-),男,江苏无锡人,教授,博士生导师,主要从事原子分子光学方面的研究。E-mail:jpyin@phy.ecnu.edu.cn
  • 相关文献

参考文献13

  • 1Steven Chu, J. E. Bjorkholm, A. Ashkin et al.. Experimental observation of optically trapped atoms[J]. Phys. Rev. Lett., 1986, 57(3): 314-318
  • 2T. Takekoshi, B. M. Patterson, R. J. Knize. Observation of optically trapped cold cesium molecules[J]. Phys. Rev. Lett., 1998, 81(23): 5105-5108
  • 3R. Dumke, M. Volk, T. Müther et al.. Micro-optical realization of arrays selectively addressable dipole traps a scalable configuration for quantum computation with atomic qubits[J]. Phys. Rev. Lett., 2002, 89(9): 097903-1-097903-4
  • 4S. R. Granade, M. E. Gehm, K. M. O′Hara et al.. All-optical production of a degenerate Fermi gas[J]. Phys. Rev. Lett., 2002, 88(12): 120405-1-120405-4
  • 5M. D. Barrett, J. A. Sauer, M. S. Chapman. All-optical formation of an atomic Bose-Einstein condensate[J]. Phys. Rev. Lett., 2001, 87(1): 010404-1-010404-4
  • 6印建平,高伟建,刘南春,王义遒.全光学冷却与囚禁^(133)Cs原子玻色-爱因斯坦凝聚的可能性[J].物理学报,2001,50(4):660-666. 被引量:13
  • 7Yosuke Takasu, Kenichi Maki, Kaduki Komori et al.. Spin-singlet Bose-Einstein condensation of two-electron atoms[J]. Phys. Rev. Lett., 2003, 91(4): 040404-1-040404-4
  • 8Giovanni Cennini, Gunnar Ritt, Carsten Geckeler et al.. All-optical realization of an atom laser[J]. Phys. Rev. Lett., 2003, 91(24): 240408-1-240408-4
  • 9S. Jochim, M. Bartenstein, A. Altmeyer et al.. Pure gas of optically trapped molecules greated from fermionic atoms[J]. Phys. Rev. Lett., 2003, 91(24): 240402-1-240402-4
  • 10周国泉,赵道木,王绍民.平面波经小圆孔衍射的轴上光强特性[J].光学学报,2003,23(1):22-25. 被引量:23

二级参考文献33

共引文献61

同被引文献56

引证文献6

二级引证文献11

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部