Reduction of the Casimir force from indium tin oxide film by UV treatment
C. C. Chang, A. A. Banishev, G. L. Klimchitskaya, V. M. Mostepanenko,, and U. Mohideen
TL;DR
This study demonstrates that UV treatment of indium tin oxide (ITO) films significantly reduces the Casimir force, with experimental results showing a 21-35% decrease, supported by theoretical comparison and a proposed explanation.
Contribution
The paper presents the first experimental evidence that UV treatment can effectively reduce the Casimir force between ITO and gold surfaces.
Findings
Casimir force decreased by 21-35% after UV treatment
UV treatment alters ITO surface properties affecting force
Experimental results align with theoretical predictions
Abstract
A significant decrease in the magnitude of the Casimir force (from 21% to 35%) was observed after an indium tin oxide (ITO) sample interacting with an Au sphere was subjected to the UV treatment. Measurements were performed by using an atomic force microscope (AFM) in high vacuum. The experimental results are compared with theory, and a hypothetical explanation for the observed phenomenon is proposed.
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