Wang, Kaiwei, Zeng, L. and Yin, C. (2003) Influence of the incident wave-front on intensity distribution nondiffracting beam used in large-scale measurement. Optics Communications, 216. pp. 99-103. ISSN 0030-4018
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Nondiffracting beam is suitable for large-scale straightness measurement because it is much less influenced by atmospheric turbulence than other beams. Based on the energy conservation theory, a binary optical element (BOE) that is used to transform an incident plane wave or divergent spherical wave into a nondiffracting beam was fabricated. We compared intensity distribution of the nondiffracting beam at different propagation distances between a plane wave incidence and a divergent spherical wave incidence based on the scalar diffraction theory and experiment results, and found that by using the same BOE, the propagation range of nondiffracting beam generated by a divergent spherical wave is longer than that generated by a plane wave.
|Additional Information:||UoA 25 (General Engineering) Copyright © 2007 Elsevier B.V. All rights reserved. ScienceDirect® is a registered trademark of Elsevier B.V.|
|Subjects:||T Technology > TA Engineering (General). Civil engineering (General)
Q Science > QC Physics
|Schools:||School of Computing and Engineering
School of Computing and Engineering > Centre for Precision Technologies
School of Computing and Engineering > Centre for Precision Technologies > Surface Metrology Group
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|Depositing User:||Briony Heyhoe|
|Date Deposited:||18 Jul 2007|
|Last Modified:||03 Dec 2010 08:55|
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