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  • Comparison of STED, confocal and optical microscopy of ultra-short pitch cholesterics
    Pišljar, Jaka ...
    The goal of this work is to compare experimentally achievable resolution limits of three different optical microscopy techniques in chiral nematic liquid crystals: (i) standard optical polarisation ... microscopy, (ii) confocal optical microscopy using fluorescently labelled liquid crystal and (iii) Stimulated Emission Depletion (STED) microscopy using custom synthesised fluorescent dyes. The microscopy experiments on micrometre thin LC samples reveal that the lateral resolution better than ~90 nm can be achieved using STED technique in thin layers of liquid crystals. The standard optical microscopy with index matching between the objective and the sample cover glass in combination with short-wavelength narrow-band optical illumination is quite competitive to STED technique and optical details as small as ~150 nm could be resolved using aberration limited microscope.
    Vir: Liquid crystals. - ISSN 0267-8292 (Vol. 47, iss. 9, 2020, str. 1303-1311)
    Vrsta gradiva - članek, sestavni del
    Leto - 2020
    Jezik - angleški
    COBISS.SI-ID - 33039655

    Povezava(-e):

    https://www.tandfonline.com/doi/full/10.1080/02678292.2019.1710870
    DOI

vir: Liquid crystals. - ISSN 0267-8292 (Vol. 47, iss. 9, 2020, str. 1303-1311)
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