Oblique nonlinear interaction of two incident solitary waves, or soliton resonance, is important because it can produce a third solitary wave that has an amplitude up to 4 times the incident wave amplitude. Although this process is well studied for surface waves and in other fields of physics such as plasma, it has not been well studied for internal solitary-like waves (ISWs) in the ocean. In t...

The nonlinear three-wave interaction process at the heart of the parametric decay process is studied by launching counter-propagating Alfv en waves from antennas placed at either end of the Large Plasma Device [W. Gekelman et al., Rev. Sci. Instrum. 62, 2875 (1991)]. A resonance in the beat wave response produced by the two launched Alfv en waves is observed and is identified as a damped ion ac...

Introduction: Energetic particles and plasma dynamics in the near-Earth space environment can significantly impact operation of both military and civilian systems. The underlying physical mechanisms relevant to two important space plasma issues, radiation belt dynamics and auroral ionospheric space weather, are under investigation in the NRL Space Physics Simulation Chamber (SPSC). Plasma condi...

Hollow Gaussian beams (HGB) are a special class of doughnut shaped beams that do not carry orbital angular momentum (OAM). Such beams have a wide range of applications in many fields including atomic optics, bio-photonics, atmospheric science, and plasma physics. Till date, these beams have been generated using linear optical elements. Here, we show a new way of generating HGBs by three-wave mi...

A new diagnostic has been developed to investigate the wave-particle interaction in phase-space gyrokinetic particle-in-cell codes. Keeping information about energy transfer terms velocity space, technique implemented and tested global code ORB5 it gives an opportunity localize domains of maximum wave–plasma exchange for separate species. Moreover, contribution different species resonances can ...

Gravitational-wave astronomy, together with precise pulsar timing and long baseline interferometry, is changing our ability to perform tests of fundamental physics astrophysical observations. Some these are based on electromagnetic probes or electrically charged bodies, assume an empty universe. However, the cosmos filled plasma, a dilute medium which prevents propagation low-frequency, small-a...