Over-Size Pill-Box Window for Sub-Terahertz Vacuum Electronic Devices

AlGaN/GaN plasmonic terahertz electronic devices

A very large electron sheet density and a relatively long momentum relaxation time of the two-dimensional electron gas in III-N heterostructures makes this materials system to be very attractive for plasmonic electronics applications.

Resonant Tunneling Diodes for Sub-Terahertz and Terahertz Oscillators

Graphene Oxide as a Promising Hole Injection Layer for MoS₂-Based Electronic Devices

M any two-dimensional (2D)materials exist in bulk form as stacks of bonded layers with weak van der Waals interlayer attraction. Thanks to their particular structure, they can be exfoliated into atomically thin monolayers that hold promise for next-generation flexible electronics and optoelectronics. Graphene has received much attention in the past decade, due in large part to exceptional elect...

Photo-designed terahertz devices

Technologies are being developed to manipulate electromagnetic waves using artificially structured materials such as photonic crystals and metamaterials, with the goal of creating primary optical devices. For example, artificial metallic periodic structures show potential for the construction of devices operating in the terahertz frequency regime. Here we demonstrate the fabrication of photo-de...

Cross-Talk Problem in Pill-Box Cavity

We discuss the polarisations of dipole modes, excited when a bunch of particles passes a cylindrical cavity beam position monitor. In dependence on the polarisation axis, cross-talk between antennas in x and y directions can be unacceptably strong, in an uncontrolled manner. We propose and apply a solution to get minimal cross-talk between coupling antennas in perpendicular axes.