Title :
Asymmetrical PSF by Azimuthal Walsh filters
Author :
Indrani Bhattacharya;Arjit Saha;Lakshminarayan Hazra
Author_Institution :
Department of Research and Development, University of Engg. and Management, Kolkata, India
Abstract :
Azimuthal Walsh Functions can be utilized to obtain an orthogonal set of Azimuthal Walsh Filters where the transmission values of +1 and -1 are achieved by using 0 and pi phase respectively. The inherent asymmetry in the azimuthal Walsh filters leads to asymmetrical Point Spread Function (PSF) in the far field diffraction pattern. This report presents results of our preliminary investigation on the effects of phase asymmetry in the filters on the PSF in the Far-field patterns.
Keywords :
"Optical filters","Diffraction","Filtering theory","Imaging","Optimized production technology","Apertures","Optical diffraction"
Conference_Titel :
Opto-Electronics and Applied Optics (IEM OPTRONIX), 2015 2nd International Conference on
DOI :
10.1109/OPTRONIX.2015.7345520
