Gain in time-dependent media—a new mechanism

HIGHLIGHTS

• who: J. B. Pendry et al. from the The Blackett Laboratory, Department of Physics, Imperial College London, London , AZ, UK Instituto de Telecomunicações, Instituto Superior Tecnico-University of Lisbon, Avenida Rovisco Pais, Lisboa, Portugal have published the article: Gain in time-dependent media—a new mechanism, in the Journal: (JOURNAL) of 14/04/2021
• what: The authors show that in some circumstances the number of lines of force, electric and magnetic, in a time-dependent system is conserved, and amplification occurs when these lines of force are squeezed closer together. The authors seek to . . .
  

   

  

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