Point Spread Function of Apertures Masked by Two-Dimensional Polar Walsh Filters

  • I. Bhattacharya
  • A. Saha
  • L. N. Hazra
Conference paper
Part of the Springer Proceedings in Physics book series (SPPHY, volume 166)


Binary polar Walsh filters derived from two dimensional polar Walsh functions provides an effective tool for tailoring the three dimensional intensity distributions of a point spread function (PSF) in the pupil plane in a diffraction limited imaging system. This paper reports the study of radial as well as azimuthally variant polar Walsh filters and observation on their imaging characteristics near the focal plane of a rotationally symmetric imaging system.


Point Spread Function Orthogonality Condition Zone Plate Optical Encode Walsh Function 
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Copyright information

© Springer India 2015

Authors and Affiliations

  1. 1.Department of ECEInstitute of Engineering and ManagementSalt LakeIndia
  2. 2.Department of ECEB.P. Poddar Institute of TechnologyPoddar ViharIndia
  3. 3.Department of Applied Optics and PhotonicsUniversity of CalcuttaSalt LakeIndia

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