Two-zone pupil filters

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 a...

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Detalles Bibliográficos
Autores principales: Sheppard, C.J.R., Campos, J., Escalera, J.C., Ledesma, S.
Formato: JOUR
Materias:
100.6640
110.1220
350.5730
Light transmission
Optimization
Parameter estimation
Performance parameters
Strehl ratio
Optical filters
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00304018_v281_n5_p913_Sheppard
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00304018_v281_n5_p913_Sheppard
record_format dspace
spelling todo:paper_00304018_v281_n5_p913_Sheppard2023-10-03T14:40:14Z Two-zone pupil filters Sheppard, C.J.R. Campos, J. Escalera, J.C. Ledesma, S. 100.6640 110.1220 350.5730 Light transmission Optimization Parameter estimation Performance parameters Strehl ratio Optical filters 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. Fil:Ledesma, S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00304018_v281_n5_p913_Sheppard
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic 100.6640
110.1220
350.5730
Light transmission
Optimization
Parameter estimation
Performance parameters
Strehl ratio
Optical filters
spellingShingle 100.6640
110.1220
350.5730
Light transmission
Optimization
Parameter estimation
Performance parameters
Strehl ratio
Optical filters
Sheppard, C.J.R.
Campos, J.
Escalera, J.C.
Ledesma, S.
Two-zone pupil filters
topic_facet 100.6640
110.1220
350.5730
Light transmission
Optimization
Parameter estimation
Performance parameters
Strehl ratio
Optical filters
description 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.
format JOUR
author Sheppard, C.J.R.
Campos, J.
Escalera, J.C.
Ledesma, S.
author_facet Sheppard, C.J.R.
Campos, J.
Escalera, J.C.
Ledesma, S.
author_sort Sheppard, C.J.R.
title Two-zone pupil filters
title_short Two-zone pupil filters
title_full Two-zone pupil filters
title_fullStr Two-zone pupil filters
title_full_unstemmed Two-zone pupil filters
title_sort two-zone pupil filters
url http://hdl.handle.net/20.500.12110/paper_00304018_v281_n5_p913_Sheppard
work_keys_str_mv AT sheppardcjr twozonepupilfilters
AT camposj twozonepupilfilters
AT escalerajc twozonepupilfilters
AT ledesmas twozonepupilfilters
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