A new method to obtain tip shape from images and reconstruct the corresponding image

摘要

The image offered by the SPM is the combination of the tip shape and the surface of sample. In this paper, based on the theory of scanning, the relationship between the tip, surface and image are studied and a new method is proposed in order to obtain the precise information of surface. The profile of tip can be acquired using the information selected from the image; then, a new reconstructed image can be built on the reverse algorithm with the help of the computer. Different form other ways, points which reflect the true fluctuate of sample surface can be chosen from whole pixels in the image. An example is utilized to demonstrate the process and check this novel method.