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Optical coherence tomography for quality assessment of embedded microchannels in alumina ceramic
Dept of Production Engineering, KTH, Stockholm.
Laboratory of Biophotonics, Institute of Applied Physics RAS, Nizhny Novgorod, Ryssland.
Dept of Production Engineering, KTH, Stockholm.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Physics.
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2012 (English)In: Optics Express, ISSN 1094-4087, Vol. 20, no 4, 4603-4618 p.Article in journal (Refereed) Published
Abstract [en]

Large-scale and cost-effective manufacturing of ceramic micro devices based on tape stacking requires the development of inspection systems to perform high-resolution in-process quality control of embedded manufactured cavities, metal structures and defects. With an optical coherence tomography (OCT) system operating at 1.3 mu m and a dedicated automated line segmentation algorithm, layer thicknesses can be measured and laser-machined channels can be verified in alumina ceramics embedded at around 100 mu m depth. Monte Carlo simulations are employed to analyze the abilities of OCT in imaging of the embedded channels. The light scattering parameters required as input data for simulations are evaluated from the integrating sphere measurements of collimated and diffuse transmittance spectra using a reconstruction algorithm based on refined diffusion approximation approach.

Place, publisher, year, edition, pages
2012. Vol. 20, no 4, 4603-4618 p.
National Category
Physical Sciences Engineering and Technology
Research subject
Engineering Science with specialization in Solid State Physics
URN: urn:nbn:se:uu:diva-173362DOI: 10.1364/OE.20.004603ISI: 000301041900124OAI: oai:DiVA.org:uu-173362DiVA: diva2:517546
Available from: 2012-04-24 Created: 2012-04-23 Last updated: 2012-09-21Bibliographically approved

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Roos, Arne
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