Stories about Volkmar Dierolf

Volkmar Dierolf and an international team demonstrate the possibility of tuning the color of a GaN LED by changing the time sequence at which the operation current is provided to the device.

For the first time, a team of researchers from Lehigh University, Oak Ridge National Laboratory, Lebanon Valley College and Corning Inc. has demonstrated that laser-generated crystals confined in glass retain controllable ferroelectric properties, key to creating faster, more efficient optical communication systems.

A “subtle” laser heating technique causes atoms to assemble into a rotating lattice.

Oxygen helps rare earth element improve optoelectronic devices' performance, researchers say.