CIOMP OpenIR
Defining speckle-based spectral metric from a linear array detector for characterizing the laser focusing spot
D. B. Che; T. F. Wang; S. Zhang; Y. Y. Li; Y. Han and Z. Yu
2022
Source PublicationOptics Communications
ISSN0030-4018
Volume502Issue:7
AbstractSpeckle modulation in the laser beam projection scenarios such as adaptive optics, remote sensing, and active imaging has been a long-standing challenge that causes intensity fluctuation and further degrades the performance of the system. Speckle statistical characteristics coupled with the feature of the laser beam intensity distribution can be obtained by analyzing the speckle variation through a single point detector or an image sensor. A single point detector has the advantage in high sampling rate but may lose speckle spatial information, while the image sensor has a high spatial resolution but slow sampling rate. In this paper, we defined a dynamic speckle metric based on a linear array detector to estimate the encircled energy of the far field spot on the diffuse target, which well balanced the trade-off between sampling rate and spatial resolution. The potential of the metric is analyzed using a physics-based speckle simulation and experimental verification. Both results agree with each other, showing that the metrics based on the speckle-field spatiotemporal spectrum analysis are monotonically dependent on the target focused-spot size.
DOI10.1016/j.optcom.2021.127397
URL查看原文
Indexed BySCI
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ciomp.ac.cn/handle/181722/65131
Collection中国科学院长春光学精密机械与物理研究所
Recommended Citation
GB/T 7714
D. B. Che,T. F. Wang,S. Zhang,et al. Defining speckle-based spectral metric from a linear array detector for characterizing the laser focusing spot[J]. Optics Communications,2022,502(7).
APA D. B. Che,T. F. Wang,S. Zhang,Y. Y. Li,&Y. Han and Z. Yu.(2022).Defining speckle-based spectral metric from a linear array detector for characterizing the laser focusing spot.Optics Communications,502(7).
MLA D. B. Che,et al."Defining speckle-based spectral metric from a linear array detector for characterizing the laser focusing spot".Optics Communications 502.7(2022).
Files in This Item:
File Name/Size DocType Version Access License
Defining speckle-bas(2487KB)期刊论文出版稿开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[D. B. Che]'s Articles
[T. F. Wang]'s Articles
[S. Zhang]'s Articles
Baidu academic
Similar articles in Baidu academic
[D. B. Che]'s Articles
[T. F. Wang]'s Articles
[S. Zhang]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[D. B. Che]'s Articles
[T. F. Wang]'s Articles
[S. Zhang]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Defining speckle-based spectral metric from a.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.