Development of a digital astronomical intensity interferometer: laboratory results with thermal light.
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| Title: | Development of a digital astronomical intensity interferometer: laboratory results with thermal light. |
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| Authors: | Matthews, Nolan1 nolankmatthews@gmail.com, Kieda, David1, LeBohec, Stephan1 |
| Source: | Journal of Modern Optics. Jul2018, Vol. 65 Issue 11, p1336-1344. 9p. |
| Subjects: | Intensity interferometers, Coherence (Optics), Light sources, Optical polarization, Telescopes, Thermal analysis |
| Abstract: | We present measurements of the second-order spatial coherence function of thermal light sources using Hanbury-Brown and Twiss interferometry with a digital correlator. We demonstrate that intensity fluctuations between orthogonal polarizations, or at detector separations greater than the spatial coherence length of the source, are uncorrelated but can be used to reduce systematic noise. The work performed here can readily be applied to existing and future Imaging Air-Cherenkov Telescopes used as star light collectors for stellar intensity interferometry to measure spatial properties of astronomical objects. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Modern Optics is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 129301324 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Development of a digital astronomical intensity interferometer: laboratory results with thermal light. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Matthews%2C+Nolan%22">Matthews, Nolan</searchLink><relatesTo>1</relatesTo><i> nolankmatthews@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Kieda%2C+David%22">Kieda, David</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22LeBohec%2C+Stephan%22">LeBohec, Stephan</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Modern+Optics%22">Journal of Modern Optics</searchLink>. Jul2018, Vol. 65 Issue 11, p1336-1344. 9p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Intensity+interferometers%22">Intensity interferometers</searchLink><br /><searchLink fieldCode="DE" term="%22Coherence+%28Optics%29%22">Coherence (Optics)</searchLink><br /><searchLink fieldCode="DE" term="%22Light+sources%22">Light sources</searchLink><br /><searchLink fieldCode="DE" term="%22Optical+polarization%22">Optical polarization</searchLink><br /><searchLink fieldCode="DE" term="%22Telescopes%22">Telescopes</searchLink><br /><searchLink fieldCode="DE" term="%22Thermal+analysis%22">Thermal analysis</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: We present measurements of the second-order spatial coherence function of thermal light sources using Hanbury-Brown and Twiss interferometry with a digital correlator. We demonstrate that intensity fluctuations between orthogonal polarizations, or at detector separations greater than the spatial coherence length of the source, are uncorrelated but can be used to reduce systematic noise. The work performed here can readily be applied to existing and future Imaging Air-Cherenkov Telescopes used as star light collectors for stellar intensity interferometry to measure spatial properties of astronomical objects. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Modern Optics is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1080/09500340.2017.1360958 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 9 StartPage: 1336 Subjects: – SubjectFull: Intensity interferometers Type: general – SubjectFull: Coherence (Optics) Type: general – SubjectFull: Light sources Type: general – SubjectFull: Optical polarization Type: general – SubjectFull: Telescopes Type: general – SubjectFull: Thermal analysis Type: general Titles: – TitleFull: Development of a digital astronomical intensity interferometer: laboratory results with thermal light. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Matthews, Nolan – PersonEntity: Name: NameFull: Kieda, David – PersonEntity: Name: NameFull: LeBohec, Stephan IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 07 Text: Jul2018 Type: published Y: 2018 Identifiers: – Type: issn-print Value: 09500340 Numbering: – Type: volume Value: 65 – Type: issue Value: 11 Titles: – TitleFull: Journal of Modern Optics Type: main |
| ResultId | 1 |
