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Analytical model for effect of temperature variation on PSF consistency in wavefront coding infrared imaging system
Feng B(冯斌); Shi ZL(史泽林); Zhang CS(张程硕); Xu BS(徐保树); Zhang, Xiaodong
Department光电信息技术研究室
Source PublicationOptics Communications
ISSN0030-4018
2016
Volume367Pages:35-43
Indexed BySCI ; EI
EI Accession number20160501867291
WOS IDWOS:000370127300006
Contribution Rank1
Funding OrganizationInnovation Foundation of the Chinese Academy of Sciences (Grantno.CXJJ-14-S116) and Tianjin Research Program of Application Foundation and Advanced Technology (Grant no.14JCQNJC05200).
KeywordAnalytical Model Wavefront Coding Psf Consistency Infrared Imaging Athermalization
AbstractThe point spread function (PSF) inconsistency caused by temperature variation leads to artifacts in decoded images of a wavefront coding infrared imaging system. Therefore, this paper proposes an analytical model for the effect of temperature variation on the PSF consistency. In the proposed model, a formula for the thermal deformation of an optical phase mask is derived. This formula indicates that a cubic optical phase mask (CPM) is still cubic after thermal deformation. A proposed equivalent cubic phase mask (E-CPM) is a virtual and room-temperature lens which characterizes the optical effect of temperature variation on the CPM. Additionally, a calculating method for PSF consistency after temperature variation is presented. Numerical simulation illustrates the validity of the proposed model and some significant conclusions are drawn. Given the form parameter, the PSF consistency achieved by a Ge-material CPM is better than the PSF consistency by a ZnSe-material CPM. The effect of the optical phase mask on PSF inconsistency is much slighter than that of the auxiliary lens group. A large form parameter of the CPM will introduce large defocus-insensitive aberrations, which improves the PSF consistency but degrades the room-temperature MTF.
Language英语
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectOptics
WOS KeywordPHASE MASK ; OPTICAL-SYSTEMS ; LENS ; ATHERMALIZATION ; COMPENSATION
WOS Research AreaOptics
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sia.cn/handle/173321/17646
Collection光电信息技术研究室
Corresponding AuthorFeng B(冯斌)
Affiliation1.Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang, China
2.Key Laboratory of Opto-electronic Information Processing, Chinese Academy of Sciences, Shenyang, China
3.University of Chinese Academy of Science, Beijing, China
4.State Key Laboratory of Precision Measuring Technology and Instruments, Centre of MicroNano Manufacturing Technology, Tianjin University, Tianjin, China
Recommended Citation
GB/T 7714
Feng B,Shi ZL,Zhang CS,et al. Analytical model for effect of temperature variation on PSF consistency in wavefront coding infrared imaging system[J]. Optics Communications,2016,367:35-43.
APA Feng B,Shi ZL,Zhang CS,Xu BS,&Zhang, Xiaodong.(2016).Analytical model for effect of temperature variation on PSF consistency in wavefront coding infrared imaging system.Optics Communications,367,35-43.
MLA Feng B,et al."Analytical model for effect of temperature variation on PSF consistency in wavefront coding infrared imaging system".Optics Communications 367(2016):35-43.
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