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Title: Binary phase filters with a maximally-flat response
Authors: Sheppard, C.J.R. 
Issue Date: 15-Apr-2011
Source: Sheppard, C.J.R. (2011-04-15). Binary phase filters with a maximally-flat response. Optics Letters 36 (8) : 1386-1388. ScholarBank@NUS Repository.
Abstract: We investigate the binary phase filters of finite support that have a Fourier transform magnitude that is the broadest and flattest. We call this behavior maximally flat, after the electrical filters devised by Butterworth. Solutions are obtained by direct algebraic manipulation, and numerical results are given for filters of up to five elements. Their application for increasing depth of focus is described. © 2011 Optical Society of America.
Source Title: Optics Letters
ISSN: 01469592
DOI: 10.1364/OL.36.001386
Appears in Collections:Staff Publications

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