Resolution-enhanced optical inspection system to examine metallic nanostructures using structured illumination

We developed a structured illumination-based optical inspection system to inspect metallic nanostructures in real time. To address this, we used post-image-processing techniques to enhance the image resolution. To examine the fabricated metallic nanostructures in real time, a compact and highly reso...

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Bibliographic Details
Published in:Applied optics (2004) 2022-08, Vol.61 (23), p.6819
Main Authors: Yoon, Taerim, Kim, Pil Un, Ahn, Heesang, Kim, Taeyeon, Eom, Tae Joong, Kim, Kyujung, Choi, Jong-ryul
Format: Article
Language:English
Subjects:
Illumination
Image enhancement
Image processing
Image reconstruction
Image resolution
Industrial applications
Inspection
Nanostructure
Real time
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Summary:We developed a structured illumination-based optical inspection system to inspect metallic nanostructures in real time. To address this, we used post-image-processing techniques to enhance the image resolution. To examine the fabricated metallic nanostructures in real time, a compact and highly resolved optical inspection system was designed for practical industrial use. Structured illumination microscopy yields multiple images with various linear illumination patterns, which can be used to reconstruct resolution-enhanced images. Images of nanosized posts and complex structures reflected in the structured illumination were reconstructed into images with improved resolution. A comparison with wide-field images demonstrates that the optical inspection system exhibits high performance and is available as a real-time nanostructure inspection platform. Because it does not require special environmental conditions and enables multiple systems to be covered in arrays, the developed system is expected to provide real-time and noninvasive inspections during the production of large-area nanostructured components.
ISSN:1559-128X
2155-3165
DOI:10.1364/AO.457806