J.J. McClelland, R.E. Scholten, E.C. Palm, R.J. Celotta, Science 262, 877 (1993).

Description:

In this new form of nanofabrication, a laser standing wave propagates across a Si surface, concentrating atoms into its nodes as they deposit. Shown is a composite of two atomic force microscope images. The foreground is a three-dimensional rendering of an atomic force microscope image, showing 65 nm wide Cr lines. The background is a larger-range AFM image of the same sample, illustrating the regularity of the lines, which are spaced at exactly half the laser wavelength.
 

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