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Compensation for the spatial periodic modulation of the near-field beam with an improved iterative weight-based method
Gao, Yaru; Liu, Dean; Yang, Aihua; Tang, Ruyu; Zhu, Jianqiang; liudean@siom.ac.cn
2017
Source PublicationOptik
Volume143Pages:59
AbstractAn improved iterative weight-based method is studied to compensate for the spatial periodic modulation (SPM) of the near-field beam, Based on the beam angular spectrum transmit formula (ASTF). the required phase that compensates for the intensity distribution of the incident SPM beam is iterated by this algorithm, which can contribute to improve the uniformity and quality of the output near-field beam. The experimental results show that the similarity values is improved from 0.9878 to 0.9947 and is getting closer to 1. The modulation degree M of the output near-field beam is decreased from 1.3631 to 1.3401 and the contrast degree C is decreased from 0.3018 to 0.2635 by using the liquid-crystal spatial light modulator (SLM). This indicates that the experiment verifies the feasibility of this iterative method to compensate for the SPM of the near-field beam.
SubtypeArticle
Department联合
DOI10.1016/j.ijleo.2017.06.057
Indexed BySCI
WOS IDWOS:000407401700009
Citation statistics
Document Type期刊论文
Identifierhttp://ir.siom.ac.cn/handle/181231/27941
Collection高功率激光物理国家实验室
Corresponding Authorliudean@siom.ac.cn
Affiliation中国科学院上海光学精密机械研究所
Recommended Citation
GB/T 7714
Gao, Yaru,Liu, Dean,Yang, Aihua,et al. Compensation for the spatial periodic modulation of the near-field beam with an improved iterative weight-based method[J]. Optik,2017,143:59.
APA Gao, Yaru,Liu, Dean,Yang, Aihua,Tang, Ruyu,Zhu, Jianqiang,&liudean@siom.ac.cn.(2017).Compensation for the spatial periodic modulation of the near-field beam with an improved iterative weight-based method.Optik,143,59.
MLA Gao, Yaru,et al."Compensation for the spatial periodic modulation of the near-field beam with an improved iterative weight-based method".Optik 143(2017):59.
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