Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.optcom.2007.10.050
Title: Two-zone pupil filters
Authors: Sheppard, C.J.R. 
Campos, J.
Escalera, J.C.
Ledesma, S.
Keywords: 100.6640
110.1220
350.5730
Issue Date: 1-Mar-2008
Source: Sheppard, C.J.R., Campos, J., Escalera, J.C., Ledesma, S. (2008-03-01). Two-zone pupil filters. Optics Communications 281 (5) : 913-922. ScholarBank@NUS Repository. https://doi.org/10.1016/j.optcom.2007.10.050
Abstract: The performance of pupil filters consisting of two zones each of constant complex amplitude transmittance is investigated. For filters where the transmittance is real, different classes of potentially useful filter are identified and optimized. These include leaky filters with an inner zone of low amplitude transmittance, pure phase filters with phase change of π, and equal area filters. The first of these minimizes the relative power in the outer rings for a given axial resolution, the second maximizes the Strehl ratio for a given transverse resolution, and the third minimizes the relative power in the outer rings for a given transverse resolution. Complex filters can give an axially shifted maximum in intensity: the performance parameters calculated relative to the true focus are investigated for some different classes of filter, but filters with phase change not equal to π are found to give inferior performance to the real value filters. © 2007 Elsevier B.V. All rights reserved.
Source Title: Optics Communications
URI: http://scholarbank.nus.edu.sg/handle/10635/67339
ISSN: 00304018
DOI: 10.1016/j.optcom.2007.10.050
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

17
checked on Dec 6, 2017

WEB OF SCIENCETM
Citations

17
checked on Nov 21, 2017

Page view(s)

25
checked on Dec 10, 2017

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.