Characteristics of Local Modulation Beam Propagating through Spatial Filter System
Joint Authors
Zhu, Jianqiang
You, Kewei
Zhang, Yanli
Zhang, Xuejie
Source
Advances in Condensed Matter Physics
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-01-01
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
As local defects may significantly harm beam quality and affect safe operation, a systematic analysis of the ability of a spatial filter to alleviate these adverse effects is required.
Thus, the evolutional characteristics of a beam modulated by a local defect propagating through a spatial filter system at an image reply plane and a downstream plane are analyzed in detail.
Modulation stripes appear at the image reply plane; these are caused by the pinhole cutoff effect.
The modulation degree increases with increasing defect size.
The maximum intensification factor can reach 3.2 under certain conditions.
Thus, the defect size should be restricted to a reasonable size for safe operation with a specified pinhole size.
Moreover, a maximal value appears at the downstream plane, and the intensity enhances with increasing defect size.
To ensure beam quality, the maximum allowable defect size and angle of the spatial filter should meet special constraints.
The maximum allowable defect size is calculated based on practical configuration parameters.
American Psychological Association (APA)
You, Kewei& Zhang, Yanli& Zhang, Xuejie& Zhu, Jianqiang. 2018. Characteristics of Local Modulation Beam Propagating through Spatial Filter System. Advances in Condensed Matter Physics،Vol. 2018, no. 2018, pp.1-6.
https://search.emarefa.net/detail/BIM-1117160
Modern Language Association (MLA)
You, Kewei…[et al.]. Characteristics of Local Modulation Beam Propagating through Spatial Filter System. Advances in Condensed Matter Physics No. 2018 (2018), pp.1-6.
https://search.emarefa.net/detail/BIM-1117160
American Medical Association (AMA)
You, Kewei& Zhang, Yanli& Zhang, Xuejie& Zhu, Jianqiang. Characteristics of Local Modulation Beam Propagating through Spatial Filter System. Advances in Condensed Matter Physics. 2018. Vol. 2018, no. 2018, pp.1-6.
https://search.emarefa.net/detail/BIM-1117160
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1117160