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Third-harmonic generation imaging of three-dimensional microstructures fabricated by photopolymerization

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Original languageEnglish
Pages (from-to)9353-9358
JournalOptics Express
Issue number9
Publication statusPublished - 2016
Publication typeA1 Journal article-refereed


We demonstrate the capability of polarized third-harmonic generation (THG) for high contrast imaging of three-dimensional microstructures fabricated by photopolymerization. Using circular polarization of fundamental light, background-free optically-sectioned THG images were obtained from laser-written photopolymerized microstructures. The technique has great potential for simple and noninvasive characterization of photopolymerized devices, which typically show poor contrast in conventional light microscopy.

Publication forum classification

Field of science, Statistics Finland