Related Experiment Video
Updated: Feb 6, 2026

Focussed Ion Beam Milling and Scanning Electron Microscopy of Brain Tissue
Published on: July 6, 2011
How a relativistic electron beam-ion channel system can act as a polarizer
Abstract:
The polarization evolution of electromagnetic radiation propagating through an electron beam-ion channel system is studied in the presence of the coupling instability. Employing the system's dielectric tensor and the full four-component Stokes vector description, the obtained differential Mueller matrix is used to determine the polarization state of the initially polarized radiated wave at any arbitrary point in the system. It is shown that an unpolarized EM wave propagating through the electron beam-ion channel system will achieve a linearly polarization state aligned to the perpendicular self-magnetic field vector and propagation direction.
Related Concept Videos
Ion Channels
Ion channels are specialized integral membrane proteins on the plasma membrane that allow...
Non-gated Ion Channels
Compared to the gated ion channels, the non-gated channels, also known as leakage or passive channels, have no gating mechanism....
Mechanically-gated Ion Channels
Ligand-gated Ion Channels
Three Subfamilies of Ligand-gated Ion Channels
Ligand-gated ion channels fall into three subfamilies. The 'Cys-loop' includes the nicotinic acetylcholine receptors, γ-aminobutyric acid (GABA), glycine, and 5-hydroxytryptamine receptors. The second one is the 'Pore-loop' channels that...
Voltage-gated Ion Channels
Generally, all voltage-gated ion channels have a 'voltage-sensing domain' that spans the lipid bilayer. The charged residues in the sensor move in response to the membrane potential changes that open the channel allowing ions movement. There are several types of...
G-Protein Gated Ion Channels
Sensory...

