Research Bits: June 8


Multi-tasking transistor Researchers at Pohang University of Science & Technology (POSTECH) developed a zinc oxide (ZnO) and tellurium (Te) heterojunction transistor technology that exhibits negative differential transconductance (NDT), where current decreases over a certain voltage range. By precisely controlling overlap length between the two materials, the team realized double negati... » read more

Research Bits: March 7


Optical signal processing with acoustic waves Researchers from Pohang University of Science & Technology (POSTECH) demonstrated an optical-wave signal that can be amplified or canceled using optically driven acoustic waves on a silicon chip. Optical signal processing using Brillouin scattering, in which acoustic waves scatter light, has been demonstrated in nanophotonic structures. But ... » read more