A holographic technique for imaging electric fields in the vicinity of toner microparticles
Friday, May 23, 2014 - 09:01
in Physics & Chemistry
Electrophotography techniques such as laser printing or photocopying involve the transfer of charged microparticles of toner or ink onto a rotating drum using electric fields. The microscopic electrostatic interactions between these particles and the drum greatly affect the print quality. Visualizing the electric fields around these charged particles, however, is difficult due to the small size of the particles and the complexity of their arrangement.