Abstract
Possible variational principles for excitation of an electromagnetic field in a wave guide are discussed. Our emphasis is not on the calculation of the modal shapes, which is common in previous art, but rather on the calculation of modal amplitude evolution, which are important in electron devices such as free electron lasers and gyrotrons. The variational formalism allows us to show that the electromagnetic field can be defined by a single complex function.
Related Journals
Current Physics
Related Books
Are We There Yet? The Search for a Theory of Everything
Atmospheric Flow Fields: Theory, Numerical Methods And Software Tools
Atomic Coherence and its Potential Applications
.jpg)
Classical Fluid Mechanics
Classical Mechanics and Quantum Mechanics: An Historic-Axiomatic Approach
Density Matrix Theories in Quantum Physics
Digital Signal Processing in Experimental Research Volume Title: Fast Transform Methods in Digital Signal Processing
Dynamical Processes In Atomic And Molecular Physics
Einstein's Revolution: A Study Of Theory Unification
Everything Coming Out of Nothing vs. A Finite, Open and Contingent Universe