8 research outputs found
New Electromagnetic Modes in Space-Time Modulated Dispersion-Engineered Media
We report on new electromagnetic modes in space-time modulated
dispersion-engineered media. These modes exhibit unusual dispersion relation,
field profile and scattering properties. They are generated by coupled
codirectional space-time harmonic pairs, and occur in space-time periodic media
whose constituent materials exhibit specific dispersion. Excitation of a slab
of such a medium with subluminal modulation results in periodic transfer of
energy between the incident frequency and a frequency shifted by a multiple of
the modulation frequency, whereas superluminal modulation generates
exponentially growing frequencies. These modes may find applications in optical
mixers, terahertz sources and other optical devices
Principles of electromagnetic waves and materials
xxi, 651 p. : ill. ; 25 cm
Electromagnetic waves, materials, and computation with MATLAB
xxv, 860 p. ; ill. ; 26 c