Demonstration of optically modulated dispersion forces

Abstract

We report the first experiment on the optical modulation of dispersion forces through a change of the carrier density in a Si membrane. For this purpose a high-vacuum based atomic force microscope and excitation light pulses from an Ar laser are used. The experimental results are compared with two theoretical models. The modulation of the dispersion force will find applications in optomechanical micromachines.

7 pages, 3 figures, opex3.sty is used, text has been made in accordance with the final version to appear in Optics express, 3 misprints are corrected

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