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Chin. Phys. B, 2013, Vol. 22(2): 023701    DOI: 10.1088/1674-1056/22/2/023701
ATOMIC AND MOLECULAR PHYSICS Prev   Next  

Structured mirror array for two-dimensional collimation of a chromium beam in atom lithography

Zhang Wan-Jing (张万经), Ma Yan (马艳), Li Tong-Bao (李同保), Zhang Ping-Ping (张萍萍), Deng Xiao (邓晓), Chen Sheng (陈晟), Xiao Sheng-Wei (肖盛炜 )
Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology, Department of Physics, Tongji University, Shanghai 200092, China
Abstract  Direct-write atom lithography, one of the potential nanofabrication techniques, is restricted by some difficulties in producing optical masks for the deposition of complex structures. In order to bring a further progress, a structured mirror array is developed to transversely collimate the chromium atomic beam in two dimensions. The best collimation is obtained when the laser red detunes by natural line-width of transition 7S37P40 of chromium atom. The collimation ratio is 0.45 vertically (in x axis), and it is 0.55 horizontally (in y axis). The theoretical model is also simulated, and a success of our structured mirror array is achieved.
Keywords:  atom lithography      structured mirror array      laser Doppler cooling      two-dimensional collimation  
Received:  19 July 2012      Revised:  01 November 2012      Accepted manuscript online: 
PACS:  37.10.De (Atom cooling methods)  
  37.10.Gh (Atom traps and guides)  
  42.50.Wk (Mechanical effects of light on material media, microstructures and particles)  
Fund: Project supported by the Shanghai Nanoscience Foundation, China (Grant Nos. 0852nm07000 and 0952nm07000); the National Natural Science Foundation of China (Grant Nos. 10804084 and 91123022); the National Key Technology R & D Program, China (Grant No. 2006BAF06B08); and the Specialized Research Fund for the Doctoral Program of Ministry of High Education of China (Grant No. 200802471008).
Corresponding Authors:  Ma Yan     E-mail:  mayan@tongji.edu.cn

Cite this article: 

Zhang Wan-Jing (张万经), Ma Yan (马艳), Li Tong-Bao (李同保), Zhang Ping-Ping (张萍萍), Deng Xiao (邓晓), Chen Sheng (陈晟), Xiao Sheng-Wei (肖盛炜 ) Structured mirror array for two-dimensional collimation of a chromium beam in atom lithography 2013 Chin. Phys. B 22 023701

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