{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,10]],"date-time":"2026-03-10T08:02:14Z","timestamp":1773129734906,"version":"3.50.1"},"reference-count":40,"publisher":"MDPI AG","issue":"5","license":[{"start":{"date-parts":[[2019,3,7]],"date-time":"2019-03-07T00:00:00Z","timestamp":1551916800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>A method to characterize cross-linking differences in polymers such as waveguide polymers has been developed. The method is based on the scan-free information acquisition utilizing a low-coherence interferometer in conjunction with an imaging spectrometer. By the introduction of a novel analyzing algorithm, the recorded spectral-phase data was interpreted as wavelength-dependent optical thickness which is matchable with the refractive index and therefore with the degree of cross-linking. In the course of this work, the method was described in its hardware and algorithmic implementation as well as in its accuracy. Comparative measurements and error estimations showed an accuracy in the range of 10\u22126 in terms of the refractive index. Finally, photo-lithographically produced samples with laterally defined cross-linking differences have been characterized. It could be shown, that differences in the optical thickness of \u00b11.5 \u03bcm are distinguishable.<\/jats:p>","DOI":"10.3390\/s19051152","type":"journal-article","created":{"date-parts":[[2019,3,8]],"date-time":"2019-03-08T04:58:35Z","timestamp":1552021115000},"page":"1152","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Spatially Resolved Cross-Linking Characterization by Imaging Low-Coherence Interferometry"],"prefix":"10.3390","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1877-4373","authenticated-orcid":false,"given":"Christopher","family":"Taudt","sequence":"first","affiliation":[{"name":"Faculty of Physical Engineering\/Computer Sciences, University of Applied Sciences Zwickau, D-08056 Zwickau, Germany"},{"name":"Fraunhofer Application Center for Optical Metrology and Surface Technologies, D-08056 Zwickau, Germany"},{"name":"Faculty of Electrical and Computer Engineering, Technical University Dresden, D-01307 Dresden, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bryan","family":"Nelsen","sequence":"additional","affiliation":[{"name":"Faculty of Physical Engineering\/Computer Sciences, University of Applied Sciences Zwickau, D-08056 Zwickau, Germany"},{"name":"Fraunhofer Application Center for Optical Metrology and Surface Technologies, D-08056 Zwickau, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Elisabeth","family":"Rossegger","sequence":"additional","affiliation":[{"name":"Polymer Competence Center Leoben, AT-8700 Leoben, Austria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2840-9700","authenticated-orcid":false,"given":"Sandra","family":"Schl\u00f6gl","sequence":"additional","affiliation":[{"name":"Polymer Competence Center Leoben, AT-8700 Leoben, Austria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Edmund","family":"Koch","sequence":"additional","affiliation":[{"name":"Faculty of Electrical and Computer Engineering, Technical University Dresden, D-01307 Dresden, Germany"},{"name":"Faculty of Medicine Carl Gustav Carus, Technical University Dresden, D-01307 Dresden, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Peter","family":"Hartmann","sequence":"additional","affiliation":[{"name":"Faculty of Physical Engineering\/Computer Sciences, University of Applied Sciences Zwickau, D-08056 Zwickau, Germany"},{"name":"Fraunhofer Application Center for Optical Metrology and Surface Technologies, D-08056 Zwickau, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2019,3,7]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1339","DOI":"10.1002\/1521-4095(20021002)14:19<1339::AID-ADMA1339>3.0.CO;2-O","article-title":"Polymer-Based Optical Waveguides: Materials, Processing, and Devices","volume":"14","author":"Ma","year":"2002","journal-title":"Adv. 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