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Publication Citation: Abraham's Force on a Highly Dispersive Medium

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Author(s): Paul D. Lett; L Wang;
Title: Abraham's Force on a Highly Dispersive Medium
Published: Date Unknown
Abstract: We consider the radiation force on highly dispersive media. In doing so we reconsider an experiment proposed to measure the Abraham force term in the stress-energy tensor at optical frequencies by measuring the displacement of a transparent dielectric caused by a light pulse passing through it. We demonstrate that, using a cold atomic vapor with a large normal dispersion as the sample medium, such an experiment should now be feasible. We also show that this radiation force can be measured for a light pulse in a highly anomalously dispersive medium, where the group velocity exceeds c. This leads to the non-intuitive result that the sample recoil changes direction.
Citation: Laser Spectroscopy
Publisher: World Scientific Publishing Company, Hackensack, NJ
Keywords: Abraham's force;anomalous dispersion;Bose-Einstein condensation;electromagnetic theory;laser cooling;slow light;spectroscopy
Research Areas: Physics