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Proceedings Paper

Propagation properties of partially coherent dark hollow beams with rectangular symmetry through aligned paraxial optical systems
Author(s): Jia Li; Yan-ru Chen; Qi Zhao; Mu-chun Zhou
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Paper Abstract

Propagation properties of partially coherent dark hollow beams with rectangular symmetry through aligned paraxial optical systems are investigated in this paper. Based on the unified theory of coherence and polarization, the analytical formulae for cross-spectral density both in source and reference plane are derived in tensor forms with the help of generalized paraxial Collins formula. By using the transmitting matrix law, we set up a general aligned ABCD optical system in order to analyze the propagation properties of beams passing through it. Numerical results show that intensity distribution in transversal output plane is easily influenced by coherence length in the source plane; oppositely it shows no variation by varying beam orders or dark-size adjusting parameter. We also investigate varying effects of two sorts of beam source parameters on degree of coherence in the transversal reference plane. Finally we show the relationship between dark-size adjusting parameter and paraxial transmitting intensity. Results show that when we decrease dark-size parameter to a certain number, the average intensity around the focal point disappear which is very different from ordinarily situation. All results in this paper may provide an effect way to describe and treat atom trapping and guiding by applying rectangular DHB.

Paper Details

Date Published: 29 August 2009
PDF: 10 pages
Proc. SPIE 7382, International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging, 73823B (29 August 2009); doi: 10.1117/12.831412
Show Author Affiliations
Jia Li, Nanjing Univ. of Science and Technology (China)
Yan-ru Chen, Nanjing Univ. of Science and Technology (China)
Qi Zhao, Nanjing Univ. of Science and Technology (China)
Mu-chun Zhou, Nanjing Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 7382:
International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging
Farzin Amzajerdian; Chun-qing Gao; Tian-yu Xie, Editor(s)

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