Resolution limits in Fourier Transform Spectrometry
It is shown by mathematical analysis, and by close inspection of experimentally determined spectra, that the frequently quoted result Δ v̄= 0.5/ D, where D is the maximum path difference introduced, for the resolution in unapodized Fourier transform spectrometry is over optimistic. Even when the two...
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| Veröffentlicht in: | Infrared physics 1976-01, Vol.16 (6), p.655-660 |
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| container_title | Infrared physics |
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| creator | Chantry, G.W. Fleming, J.W. |
| description | It is shown by mathematical analysis, and by close inspection of experimentally determined spectra, that the frequently quoted result Δ
v̄= 0.5/
D, where
D is the maximum path difference introduced, for the resolution in unapodized Fourier transform spectrometry is over optimistic. Even when the two lines are of equal strength the resolution is found to be Δ
v̄ =0.7/
D whilst if they differ markedly in strength the resolution is even worse (∼ 0.8/
D). The loss in resolution in going to apodized spectrometry is not as severe as has previously been thought with Δ
v̄ = 0.9/
D for equal strength components and Δ
v̄ = 1/
D for the components having an intensity ratio of 2:1. |
| doi_str_mv | 10.1016/0020-0891(76)90102-0 |
| format | Article |
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v̄= 0.5/
D, where
D is the maximum path difference introduced, for the resolution in unapodized Fourier transform spectrometry is over optimistic. Even when the two lines are of equal strength the resolution is found to be Δ
v̄ =0.7/
D whilst if they differ markedly in strength the resolution is even worse (∼ 0.8/
D). The loss in resolution in going to apodized spectrometry is not as severe as has previously been thought with Δ
v̄ = 0.9/
D for equal strength components and Δ
v̄ = 1/
D for the components having an intensity ratio of 2:1.</description><identifier>ISSN: 0020-0891</identifier><identifier>DOI: 10.1016/0020-0891(76)90102-0</identifier><language>eng</language><publisher>Elsevier B.V</publisher><ispartof>Infrared physics, 1976-01, Vol.16 (6), p.655-660</ispartof><rights>1976</rights><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c335t-8add37e1bb30fe3990b3cb09bc8614056f0fbd238350dc539342167ce9b23f83</citedby><cites>FETCH-LOGICAL-c335t-8add37e1bb30fe3990b3cb09bc8614056f0fbd238350dc539342167ce9b23f83</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27923,27924</link.rule.ids></links><search><creatorcontrib>Chantry, G.W.</creatorcontrib><creatorcontrib>Fleming, J.W.</creatorcontrib><title>Resolution limits in Fourier Transform Spectrometry</title><title>Infrared physics</title><description>It is shown by mathematical analysis, and by close inspection of experimentally determined spectra, that the frequently quoted result Δ
v̄= 0.5/
D, where
D is the maximum path difference introduced, for the resolution in unapodized Fourier transform spectrometry is over optimistic. Even when the two lines are of equal strength the resolution is found to be Δ
v̄ =0.7/
D whilst if they differ markedly in strength the resolution is even worse (∼ 0.8/
D). The loss in resolution in going to apodized spectrometry is not as severe as has previously been thought with Δ
v̄ = 0.9/
D for equal strength components and Δ
v̄ = 1/
D for the components having an intensity ratio of 2:1.</description><issn>0020-0891</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1976</creationdate><recordtype>article</recordtype><recordid>eNp9kEFLxDAQhXNQcF39Bx56Ej1UJ5lt2lwEWVwVFgTde2jSCUTaZk1aYf-93V3x6Gl4w3sPvsfYFYc7DlzeAwjIoVL8ppS3CjiIHE7Y7O99xs5T-pykUFLOGL5TCu04-NBnre_8kDLfZ6swRk8x28S6Ty7ELvvYkh1i6GiIuwt26uo20eXvnbPN6mmzfMnXb8-vy8d1bhGLIa_qpsGSuDEIjlApMGgNKGMryRdQSAfONAIrLKCxBSpcCC5LS8oIdBXO2fWxdhvD10hp0J1Pltq27imMSQtRggTkk3FxNNoYUork9Db6ro47zUHvR9F7er2n16XUh1E0TLGHY4wmhu8JVyfrqbfU-DjB6ib4_wt-AN7BajA</recordid><startdate>19760101</startdate><enddate>19760101</enddate><creator>Chantry, G.W.</creator><creator>Fleming, J.W.</creator><general>Elsevier B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>19760101</creationdate><title>Resolution limits in Fourier Transform Spectrometry</title><author>Chantry, G.W. ; Fleming, J.W.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c335t-8add37e1bb30fe3990b3cb09bc8614056f0fbd238350dc539342167ce9b23f83</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1976</creationdate><toplevel>online_resources</toplevel><creatorcontrib>Chantry, G.W.</creatorcontrib><creatorcontrib>Fleming, J.W.</creatorcontrib><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Infrared physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Chantry, G.W.</au><au>Fleming, J.W.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Resolution limits in Fourier Transform Spectrometry</atitle><jtitle>Infrared physics</jtitle><date>1976-01-01</date><risdate>1976</risdate><volume>16</volume><issue>6</issue><spage>655</spage><epage>660</epage><pages>655-660</pages><issn>0020-0891</issn><abstract>It is shown by mathematical analysis, and by close inspection of experimentally determined spectra, that the frequently quoted result Δ
v̄= 0.5/
D, where
D is the maximum path difference introduced, for the resolution in unapodized Fourier transform spectrometry is over optimistic. Even when the two lines are of equal strength the resolution is found to be Δ
v̄ =0.7/
D whilst if they differ markedly in strength the resolution is even worse (∼ 0.8/
D). The loss in resolution in going to apodized spectrometry is not as severe as has previously been thought with Δ
v̄ = 0.9/
D for equal strength components and Δ
v̄ = 1/
D for the components having an intensity ratio of 2:1.</abstract><pub>Elsevier B.V</pub><doi>10.1016/0020-0891(76)90102-0</doi><tpages>6</tpages></addata></record> |
| fulltext | fulltext |
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| ispartof | Infrared physics, 1976-01, Vol.16 (6), p.655-660 |
| issn | 0020-0891 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_22706031 |
| source | Alma/SFX Local Collection |
| title | Resolution limits in Fourier Transform Spectrometry |
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