Oblique propagation and nonlinear wave particle processes

Theory and Application of Nonlinear Wave Propagation Phenomena in Combined Reaction / Separation Processes

In the chemical industry the demands regarding process efficiency are permanently increasing. At the same time methods to design indiviual process stages and interconnect them to higly integrated process are reaching their preformance limit. To overcome these limitations the focus of current research has turned to combined processes, i.e. processes that combine the tasks of different process st...

Asymmetric wave propagation in nonlinear systems.

A mechanism for asymmetric (nonreciprocal) wave transmission is presented. As a reference system, we consider a layered nonlinear, nonmirror-symmetric model described by the one-dimensional discrete nonlinear Schrödinger equation with spatially varying coefficients embedded in an otherwise linear lattice. We construct a class of exact extended solutions such that waves with the same frequency a...

Nonlinear Ultrasonic Wave Propagation in Biological Materials

The n o n l i n e a r i t y p a r a m e t e r B / A h a s b e e n d e t e r m i n e d f o r t i s s u e mode l s ( a q u e o u s s o l u t i o n s o f b i o l o g i c a l m a c r o m o l e c u l e s ) a n d f o r e x c i s e d t i s s u e s f r o m measuremen t s o f t h e f u n d a m e n t a l p r e s s u r e a m p l i t u d e , a t t h e s o u r c e , and t h e s e c o n d ha rmon ic p r e s ...

Wave propagation in periodic nonlinear dielectric superlattices

Novel phenomena such as photo& band gaps and possible light localization occur when electromagnetic (EM) waves propagate in dielectric superlattices.1-6 In an approximation where only the scalar nature of the EM wave is taken into account, wave propagation in a periodic or disordered medium resembles the dynamics of an electron in a crystal lattice. As a result, photonic bands and gaps arise in...

Nonlinear wave propagation in free-electron lasers.