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Lecture
Are you an EPFL student looking for a semester project?
Work with us on data science and visualisation projects, and deploy your project as an app on top of Graph Search.
This lecture covers the average Poynting vector and intensity of electromagnetic waves, energy density, momentum, and radiation pressure. It explains the relations in a vacuum for monochromatic plane waves and the momentum associated with the electromagnetic field. The discussion extends to the forces generated by radiation pressure, illustrated with examples like the pressure of sunlight on Earth and the use of solar sails in space missions. Additionally, it explores the transmission of waves through Earth's atmosphere and the behavior of different types of electromagnetic radiation. The lecture concludes with the trajectory of the electromagnetic field created by a moving load.