Leopold B. Felsen was a physicist known for studies of Electromagnetism

Electromagnetism

Electromagnetism is one of the four fundamental interactions in nature. The other three are the strong interaction, the weak interaction and gravitation...

 and wave-based disciplines. He had to flee Germany at 16 due to the Nazis. In 1991 he won the IEEE Heinrich Hertz Medal

IEEE Heinrich Hertz Medal

The IEEE Heinrich Hertz Medal was a science award presented by the IEEE for outstanding achievements in the field of electromagnetic waves. The medal was named in honour of German physicist Heinrich Hertz, and was first proposed in 1986 by IEEE Region 8 as a centennial recognition of Hertz's work...

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He has fundamental contributions to electromagnetic field analysis.

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Leopold B. Felsen was a professor of Boston University College of Engineering, life fellow of IEEE, fellow of Acoustical Society of America and Optical Society of America.