Submillimeter-wave imaging assisted alignment of millimeter-wave spectroscopic system for quantification of corneal water content

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorBaggio, Mariangelaen_US
dc.contributor.authorHu, Yongen_US
dc.contributor.authorTamminen, Aleksien_US
dc.contributor.authorNefedova, Irinaen_US
dc.contributor.authorAla-Laurinaho, Juhaen_US
dc.contributor.authorTaylor, Zacharyen_US
dc.contributor.departmentDepartment of Electronics and Nanoengineeringen_US
dc.contributor.departmentUniversity of Californiaen_US
dc.contributor.departmentZachary Taylor Groupen_US
dc.contributor.editorJarrahi, Monaen_US
dc.contributor.editorPreu, Saschaen_US
dc.contributor.editorTurchinovich, Dmitryen_US
dc.date.accessioned2020-06-01T06:54:39Z
dc.date.available2020-06-01T06:54:39Z
dc.date.issued2020-01-01en_US
dc.description.abstractWe propose an alignment strategy for millimeter spectroscopy of cornea that uses imaging to screen for sufficient alignment conditions. The performance of different corneal imaging objectives, in the presence of misalignment, is evaluated. The cornea is illuminated with a TEM00 Gaussian beam at 650 GHz and the beam is swept across the cornea. Images are generated by calculating the coupling between illumination and scattered beams for each illumination beam position and angle. The cornea is displaced at intervals of 500 microns in the transverse and axial directions and with new coupling coefficient maps generated at each misaligned position. Contrast in the misaligned cases are compared to the aligned case via zero normalized spatial cross correlation. The results show a maximum normalized cross correlation of 0.92 for a two-mirror scanning system and 0.74 for a one-mirror scanning objective. The analysis suggests that imaging contrast at 650 GHz can be used to screen for misalignment that would be difficultto detect with MMW.en
dc.description.versionPeer revieweden
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationBaggio , M , Hu , Y , Tamminen , A , Nefedova , I , Ala-Laurinaho , J & Taylor , Z 2020 , Submillimeter-wave imaging assisted alignment of millimeter-wave spectroscopic system for quantification of corneal water content . in M Jarrahi , S Preu & D Turchinovich (eds) , SPIE Conference Proceedings . , 113480M , Proceedings of SPIE : the International Society for Optical Engineering , vol. 11348 , SPIE , SPIE Photonics Europe , Virtual, Online , France , 06/04/2020 . https://doi.org/10.1117/12.2556309en
dc.identifier.doi10.1117/12.2556309en_US
dc.identifier.isbn9781510634688
dc.identifier.issn0277-786X
dc.identifier.issn1996-756X
dc.identifier.otherPURE UUID: b0d50fdd-502d-43da-99de-c6b8afb1f113en_US
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/b0d50fdd-502d-43da-99de-c6b8afb1f113en_US
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85084183982&partnerID=8YFLogxKen_US
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/43180885/Baggio_Submillimeter_wave_imaging_assisted_alignment_SPIE.pdfen_US
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/44535
dc.identifier.urnURN:NBN:fi:aalto-202006013508
dc.language.isoenen
dc.relation.ispartofSPIE Photonics Europeen
dc.relation.ispartofseriesSPIE Conference Proceedingsen
dc.relation.ispartofseriesProceedings of SPIE : the International Society for Optical Engineeringen
dc.relation.ispartofseriesVolume 11348en
dc.rightsopenAccessen
dc.subject.keywordCorneaen_US
dc.subject.keywordmedical imagingen_US
dc.subject.keywordphysical opticsen_US
dc.subject.keywordquasiopticsen_US
dc.subject.keywordsubmillimeter wave remote sensingen_US
dc.subject.keywordTHzen_US
dc.subject.keywordTHz imagingen_US
dc.titleSubmillimeter-wave imaging assisted alignment of millimeter-wave spectroscopic system for quantification of corneal water contenten
dc.typeConference article in proceedingsfi
dc.type.versionpublishedVersion
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