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Terahertz wavefronts measured using the Hartmann sensor principle
Cui, M.1,2; Hovenier, J. N.2; Ren, Y.2,3,4; Polo, A.5; Gao, J. R.1,2
Source PublicationOPTICS EXPRESS
AbstractWe demonstrate for the first time that the Hartmann wavefront sensor (HWS) principle can be applied for characterizing the wavefronts of terahertz (THz) electromagnetic radiation. The THz Hartmann wavefront sensor consists of a metallic plate with an array of holes and a two-dimensional scanable pyro-electric detector. The THz radiation with different wavefronts was generated by a far-infrared gas laser operated at 2.5 THz in combination with a number of objects that result in known wavefronts. To measure the wavefront, a beam passing through an array of holes generates intensity spots, for which the positions of the individual spot centroids are measured and compared with reference positions. The reconstructed wavefronts are in good agreement with the model expectations. (C) 2012 Optical Society of America
Subject AreaAstronomy & Astrophysics
WOS HeadingsScience & Technology ; Physical Sciences
Indexed BySCI
WOS Research AreaOptics
WOS SubjectOptics
WOS IDWOS:000305473000075
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.SRON Netherlands Inst Space Res, NL-3584 CA Utrecht, Netherlands
2.Delft Univ Technol, Kavli Inst NanoSci, NL-2628 CJ Delft, Netherlands
3.Chinese Acad Sci, PMO, Nanjing 210008, Jiangsu, Peoples R China
4.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
5.Delft Univ Technol, Dept Imaging Sci & Technol, Opt Res Grp, NL-2628 CJ Delft, Netherlands
Recommended Citation
GB/T 7714
Cui, M.,Hovenier, J. N.,Ren, Y.,et al. Terahertz wavefronts measured using the Hartmann sensor principle[J]. OPTICS EXPRESS,2012,20(13):14380-14391.
APA Cui, M.,Hovenier, J. N.,Ren, Y.,Polo, A.,&Gao, J. R..(2012).Terahertz wavefronts measured using the Hartmann sensor principle.OPTICS EXPRESS,20(13),14380-14391.
MLA Cui, M.,et al."Terahertz wavefronts measured using the Hartmann sensor principle".OPTICS EXPRESS 20.13(2012):14380-14391.
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