研究目的
Developing a principle of optical vortex phase analysis and its application to surface imaging with high accuracy measurements in nanoscale range.
研究成果
The proposed technique of optical vortex phase analysis allows for high-accuracy measurements of surface features in the nanoscale range, applicable to both reflecting and transparent surfaces, including biological samples. It achieves a vertical resolution down to 1.75 nm and a longitudinal resolution of 7 nm, offering potential for non-destructive testing and real-time imaging of live cells.
研究不足
The method's accuracy and resolution are dependent on the quality of the optical components and the stability of the interferometric setup. Vibrations and mechanical instability may impose accuracy limits.
1：Experimental Design and Method Selection:
The study involves the use of optical vortex phase analysis for surface imaging, focusing on the interference between singular beams and reference waves to extract phase delay information.
2：Sample Selection and Data Sources:
The method is applicable to optically transparent and reflecting surfaces, including biological structures and live cells.
3：List of Experimental Equipment and Materials:
The setup likely involves lasers, interferometers, and imaging sensors capable of detecting nanoscale phase differences.
4：Experimental Procedures and Operational Workflow:
Two-coordinate scanning of the sample is performed to retrieve information about shape and roughness, with automatic processing of vortex interferograms.
5：Data Analysis Methods:
The study employs phase retrieval algorithms to analyze interference patterns and extract surface features or refraction data.
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