https://scholars.lib.ntu.edu.tw/handle/123456789/575883
標題: | A horizontal-type scanning near-field optical microscope with torsional mode operation toward high-resolution and non-destructive imaging of soft materials | 作者: | Yu J.-R Chou H.-C Yang C.-W Liao W.-S Hwang I.-S Chen C. WEI-SSU LIAO |
關鍵字: | Fluorescence imaging; Mechanical stability; Microscopes; Single-walled carbon nanotubes (SWCN); Soft materials; Design and build; Force sensitivity; High resolution; Metallic gratings; Non-destructive imaging; Optical imaging; Optical resolution; Poly-3-hexylthiophene; Atomic force microscopy | 公開日期: | 2020 | 卷: | 91 | 期: | 7 | 來源出版物: | Review of Scientific Instruments | 摘要: | We design and build a horizontal-type aperture based scanning near-field optical microscope (a-SNOM) with superior mechanical stability toward high-resolution and non-destructive topographic and optical imaging. We adopt the torsional mode in AFM (atomic force microscopy) operation to achieve a better force sensitivity and a higher topographic resolution when using pyramidal a-SNOM tips. The performance and stability of the AFM are evaluated through single-walled carbon nanotube and poly(3-hexyl-thiophene) nanowire samples. An optical resolution of 93 nm is deduced from the a-SNOM imaging of a metallic grating. Finally, a-SNOM fluorescence imaging of soft lipid domains is successfully achieved without sample damage by our horizontal-type a-SNOM instrument with torsional mode AFM operation. ? 2020 Author(s). |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85089132998&doi=10.1063%2f5.0009422&partnerID=40&md5=ba39c9ca066b219fcddfd1bb5535b3cc https://scholars.lib.ntu.edu.tw/handle/123456789/575883 |
ISSN: | 346748 | DOI: | 10.1063/5.0009422 |
顯示於: | 化學系 |
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