Localization microscopy (SPDM) facilitates high precision control of lithographically produced nanostructures

Area of Science:

• Material Science
• Optical Microscopy
• Nanotechnology

Background:

• Nanoscale resolution in material science typically requires scanning electron beam microscopes.
• Achieving single molecule resolution with visible light has been a significant challenge.

Purpose of the Study:

• To present a novel procedure for achieving single molecule resolution of sample surfaces using visible light.
• To demonstrate the capability of this method on nanostructured surfaces.
• To provide an absolute spatial calibration for the applied localization microscopy technique.

Main Methods:

• Utilizing electron beam lithography to create nanostructures of interconnected cubes.
• Labeling nanostructures with Alexa 647 dyes.
• Employing localization microscopy, specifically spectral precision distance microscopy (SPDM), for high-resolution imaging and spatial calibration.

Main Results:

• Demonstrated single molecule resolution on nanostructured surfaces using visible light.
• Successfully localized the spatial organization of dyes on the fabricated nanostructures.
• Achieved absolute spatial calibration of the spectral precision distance microscopy (SPDM) method.

Conclusions:

• The developed visible light procedure enables nanoscale resolution, comparable to electron microscopy, for surface analysis.
• This technique offers potential for enhanced product control in industrial applications.
• The method is suitable for long-term fluorescence imaging studies.