Improved detection of atmospheric turbulence with SLODAR
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Goodwin, Michael; Jenkins, Charles; Lambert, Andrew John
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We discuss several improvements in the detection of atmospheric turbulence using SLOpe Detection And Ranging (SLODAR). Frequently, SLODAR observations have shown strong ground-layer turbulence, which is beneficial to adaptive optics. We show that current methods which neglect atmospheric propagation effects can underestimate the strength of high altitude turbulence by up to ~ 30%. We show that mirror and dome seeing turbulence can be a significant fraction of measured ground-layer...[Show more]
dc.contributor.author | Goodwin, Michael | |
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dc.contributor.author | Jenkins, Charles | |
dc.contributor.author | Lambert, Andrew John | |
dc.date.accessioned | 2009-06-02T03:46:56Z | |
dc.date.accessioned | 2010-12-20T06:03:41Z | |
dc.date.available | 2009-06-02T03:46:56Z | |
dc.date.available | 2010-12-20T06:03:41Z | |
dc.identifier.citation | Optics Express 15.22 (2007): 14844-14860 | |
dc.identifier.issn | 1094-4087 | |
dc.identifier.uri | http://hdl.handle.net/10440/372 | |
dc.identifier.uri | http://digitalcollections.anu.edu.au/handle/10440/372 | |
dc.description.abstract | We discuss several improvements in the detection of atmospheric turbulence using SLOpe Detection And Ranging (SLODAR). Frequently, SLODAR observations have shown strong ground-layer turbulence, which is beneficial to adaptive optics. We show that current methods which neglect atmospheric propagation effects can underestimate the strength of high altitude turbulence by up to ~ 30%. We show that mirror and dome seeing turbulence can be a significant fraction of measured ground-layer turbulence, some cases up to ~ 50%. We also demonstrate a novel technique to improve the nominal height resolution, by a factor of 3, called Generalized SLODAR. This can be applied when sampling high-altitude turbulence, where the nominal height resolution is the poorest, or for resolving details in the important ground-layer. | |
dc.format | 17 pages | |
dc.publisher | Optical Society of America | |
dc.rights | "OSA will grant the authors permission to deposit the publisher’s pdf from their Optics Express articles into the repository with the proper citation (reference number or journal /volume/page/year citation)." - from email received from Authorized Agent, The Optical Society, 27/05/10 | |
dc.source | Optics Express | |
dc.source.uri | http://www.opticsinfobase.org/DirectPDFAccess/9F09A96E-BDB9-137E-C780B829FB354FE5_144546.pdf?da=1&id=144546&seq=0&CFID=39997365&CFTOKEN=32868506 | |
dc.subject | atmospheric turbulence | |
dc.subject | adaptive optics | |
dc.subject | equipment and techniques | |
dc.subject | telescopes | |
dc.title | Improved detection of atmospheric turbulence with SLODAR | |
dc.type | Journal article | |
local.identifier.citationvolume | 15 | |
dcterms.dateAccepted | 2007-09-09 | |
dc.date.issued | 2007-10-25 | |
local.identifier.absfor | 020110 | |
local.identifier.ariespublication | u4167262xPUB493 | |
local.type.status | Published Version | |
local.contributor.affiliation | Goodwin, Michael, Research School of Astronomy and Astrophysics | |
local.contributor.affiliation | Jenkins, Charles, Research School of Astronomy and Astrophysics | |
local.contributor.affiliation | Lambert, Andrew John, University of New South Wales, ADFA | |
local.bibliographicCitation.issue | 22 | |
local.bibliographicCitation.startpage | 14844 | |
local.bibliographicCitation.lastpage | 14860 | |
local.identifier.doi | 10.1364/OE.15.014844 | |
dc.date.updated | 2015-12-10T07:36:46Z | |
local.identifier.scopusID | 2-s2.0-35948974805 | |
Collections | ANU Research Publications |
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