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July 6, 2005

Infrared near-field image of block copolymer surface

An infrared, near-field microscopic image of a polystyrene-poly (dimethylsiloxane) (PS-PDMS) block copolymer surface. The upper image shows the surface at constant tip surface separation. The bottom shows the surface imaged at constant height above the substrate. PDMS appears as the small bumps in the lower image.

This work was supported by grants from the National Science Foundation (CHE 98-16820 and PHY 01-03048). (Date of Image: Unknown)

Credit: Dr. Gilbert Walker

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