Control of the Casimir Force Using Semiconductor Test Bodies

Abstract

We describe experimental and related theoretical work on the measurement of the Casimir force using semiconductor test bodies. This field of research started in 2005 and several important and interesting results have already been obtained. Specifically, the Casimir force or its gradient were measured in the configuration of an Au-coated sphere and different semiconductor surfaces. It was found that the force magnitude depends significantly on the replacement of the metal with a semiconductor and on the concentration of charge carriers in the semiconductor material. Special attention is paid to the experiment on the optical modulation of the Casimir force. In this experiment the difference Casimir force between an Au-coated sphere and Si plate in the presence and in the absence of laser light was measured. Possible applications of this experiment are discussed, specifically, for the realization of the pulsating Casimir force in three-layer systems. Theoretical problems arising from the comparison of the experimental data for the difference Casimir force with the Lifshitz theory are analyzed. We consider the possibility to control the magnitude of the Casimir force in phase transitions of semiconductor materials. Experiments on measuring the Casimir force gradient between an Au-coated sphere and Si plate covered with rectangular corrugations of different character are also described. Here, we discuss the interplay between the material properties and nontrivial geometry and the applicability of the proximity force approximation. The review contains comparison between different experiments and analysis of their advantages and disadvantages.

Review: 61 pages, 23 figures

References in corpus (33)

• Measurement of the Temperature Dependence of the Casimir-Polder Force
• Novel constraints on light elementary particles and extra-dimensional physics from the Casimir effect
• Measurement of the Casimir force between a gold sphere and silicon surface with nanoscale trench arrays
• Control of the Casimir force by the modification of dielectric properties with light
• Casimir interaction of dielectric gratings
• Halving the Casimir force with conductive oxides
• On the torque on birefringent plates induced by quantum fluctuations
• Demonstration of optically modulated dispersion forces
• Influence of random roughness on the Casimir force at small separations
• Anomalies in electrostatic calibrations for the measurement of the Casimir force in a sphere-plane geometry
• Demonstration of the difference Casimir force for samples with different charge carrier densities
• Influence of slab thickness on the Casimir force
• Experimental test for the conductivity properties from the Casimir force between metal and semiconductor
• Thermal Lifshitz Force between Atom and Conductor with Small Density of Carriers
• Conductivity of dielectric and thermal atom-wall interaction
• No anomalous scaling in electrostatic calibrations for Casimir force measurements
• Contribution of drifting carriers to the Casimir-Lifshitz and Casimir-Polder interactions with semiconductor materials
• Comment on "Anomalies in electrostatic calibration for the measurement of the Casimir force in a sphere-plane geometry"
• Thermal Casimir effect in ideal metal rectangular boxes
• Application of the Lifshitz theory to poor conductors
• Casimir effect in a superconducting cavity and the thermal controversy
• Casimir-Polder force between an atom and a dielectric plate: thermodynamics and experiment
• Experimental procedures for precision measurements of the Casimir force with an Atomic Force Microscope
• Experimental approaches to the difference in the Casimir force through the varying optical properties of boundary surface
• Analytic approach to the thermal Casimir force between metal and dielectric
• Problems in the theory of thermal Casimir force between dielectrics and semiconductors
• Universal behavior of dispersion forces between two dielectric plates in the low-temperature limit
• Pulsating Casimir force
• Magnetic materials and the problem of thermal Casimir force
• New approach to the thermal Casimir force between real metals
• Comment on ``Precision measurement of the Casimir-Lifshitz force in a fluid''
• Comment on "Repulsive Casimir Force in Chiral Metamaterials"
• Possibility to measure thermal effects in the Casimir force