Two controversies in classical electromagnetism

Robert N. C. Pfeifer; Timo A. Nieminen; Norman R. Heckenberg; Halina Rubinsztein-Dunlop

doi:10.1117/12.678953

11 September 2006 Two controversies in classical electromagnetism

Robert N. C. Pfeifer, Timo A. Nieminen, Norman R. Heckenberg, Halina Rubinsztein-Dunlop

Proceedings Volume 6326, Optical Trapping and Optical Micromanipulation III; 63260H (2006) https://doi.org/10.1117/12.678953
Event: SPIE Optics + Photonics, 2006, San Diego, California, United States

Abstract

This paper examines two controversies arising within classical electromagnetism which are relevant to the optical trapping and micromanipulation community. First is the Abraham-Minkowski controversy, a debate relating to the form of the electromagnetic energy-momentum tensor in dielectric materials, with implications for the momentum of a photon in dielectric media. A wide range of alternatives exist, and experiments are frequently proposed to attempt to discriminate between them. We explain the resolution of this controversy and show that regardless of the electromagnetic energy-momentum tensor chosen, when material disturbances are also taken into account the predicted behaviour will always be the same. The second controversy, known as the plane wave angular momentum paradox, relates to the distribution of angular momentum within an electromagnetic wave. The two competing formulations are reviewed, and an experiment is discussed which is capable of distinguishing between the two.

Citation Download Citation

Robert N. C. Pfeifer, Timo A. Nieminen, Norman R. Heckenberg, and Halina Rubinsztein-Dunlop "Two controversies in classical electromagnetism", Proc. SPIE 6326, Optical Trapping and Optical Micromanipulation III, 63260H (11 September 2006); https://doi.org/10.1117/12.678953

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