Measurement of the atmospheric primary aberrations by a 4-aperture differential image motion monitor
(2011) In Journal of Optics 13(5).- Abstract
- The present paper investigates and discusses the ability of the Hartmann test with a 4-aperture differential image motion monitor (DIMM) to measure the atmospheric primary aberrations which, in turn, can be used for the calculation of the atmospheric coherence time. Through performing numerical simulations, we show that the 4-aperture DIMM is able to measure the defocus and astigmatism terms correctly whereas its results are not reliable for the coma. The most important limitations in the measurement of the primary aberrations by the 4-aperture DIMM are the centroid displacements of the spots which are caused by the higher order aberrations. This effect is negligible in the calculation of the defocus and astigmatisms, whereas it cannot be... (More)
- The present paper investigates and discusses the ability of the Hartmann test with a 4-aperture differential image motion monitor (DIMM) to measure the atmospheric primary aberrations which, in turn, can be used for the calculation of the atmospheric coherence time. Through performing numerical simulations, we show that the 4-aperture DIMM is able to measure the defocus and astigmatism terms correctly whereas its results are not reliable for the coma. The most important limitations in the measurement of the primary aberrations by the 4-aperture DIMM are the centroid displacements of the spots which are caused by the higher order aberrations. This effect is negligible in the calculation of the defocus and astigmatisms, whereas it cannot be ignored in the calculation of the coma. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/2042291
- author
- Shomali, Ramin ; Nasiri, Sadollah and Darudi, Ahmad LU
- organization
- publishing date
- 2011
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- atmospheric turbulence, wavefront sensing, remote sensing and sensors
- in
- Journal of Optics
- volume
- 13
- issue
- 5
- article number
- 055708
- publisher
- IOP Publishing
- external identifiers
-
- wos:000292185100033
- scopus:79955823957
- ISSN
- 2040-8986
- DOI
- 10.1088/2040-8978/13/5/055708
- language
- English
- LU publication?
- yes
- id
- f89b956f-f6d7-4933-988f-ca1ee907b0d9 (old id 2042291)
- date added to LUP
- 2016-04-01 10:01:28
- date last changed
- 2025-04-04 14:48:53
@article{f89b956f-f6d7-4933-988f-ca1ee907b0d9,
abstract = {{The present paper investigates and discusses the ability of the Hartmann test with a 4-aperture differential image motion monitor (DIMM) to measure the atmospheric primary aberrations which, in turn, can be used for the calculation of the atmospheric coherence time. Through performing numerical simulations, we show that the 4-aperture DIMM is able to measure the defocus and astigmatism terms correctly whereas its results are not reliable for the coma. The most important limitations in the measurement of the primary aberrations by the 4-aperture DIMM are the centroid displacements of the spots which are caused by the higher order aberrations. This effect is negligible in the calculation of the defocus and astigmatisms, whereas it cannot be ignored in the calculation of the coma.}},
author = {{Shomali, Ramin and Nasiri, Sadollah and Darudi, Ahmad}},
issn = {{2040-8986}},
keywords = {{atmospheric turbulence; wavefront sensing; remote sensing and sensors}},
language = {{eng}},
number = {{5}},
publisher = {{IOP Publishing}},
series = {{Journal of Optics}},
title = {{Measurement of the atmospheric primary aberrations by a 4-aperture differential image motion monitor}},
url = {{http://dx.doi.org/10.1088/2040-8978/13/5/055708}},
doi = {{10.1088/2040-8978/13/5/055708}},
volume = {{13}},
year = {{2011}},
}