Ring-Resonator-Based Sub-THz Dielectric Sensor

Broadband Annular-Ring Dielectric Resonator Antenna

Generation of THz frequency using PANDA ring resonator for THz imaging

In this study, we have generated terahertz (THz) frequency by a novel design of microring resonators for medical applications. The dense wavelength-division multiplexing can be generated and obtained by using a Gaussian pulse propagating within a modified PANDA ring resonator and an add/drop filter system. Our results show that the THz frequency region can be obtained between 40-50 THz. This ar...

Tunable Room Temperature THz Sources Based on Nonlinear Mixing in a Hybrid Optical and THz Micro-Ring Resonator

We propose and systematically investigate a novel tunable, compact room temperature terahertz (THz) source based on difference frequency generation in a hybrid optical and THz micro-ring resonator. We describe detailed design steps of the source capable of generating THz wave in 0.5-10 THz with a tunability resolution of 0.05 THz by using high second order optical susceptibility (χ((2))) in cry...

Dielectric rod waveguide components at sub-THz frequencies

Aalto University, P.O. Box 11000, FI-00076 Aalto www.aalto.fi Author Andrey Generalov Name of the doctoral dissertation Dielectric rod waveguide components at sub-THz frequencies Publisher School of Electrical Engineering Unit Department of Radio Science and Engineering Series Aalto University publication series DOCTORAL DISSERTATIONS 99/2015 Field of research Radio Engineering Manuscript submi...

Split ring resonator based THz-driven electron streak camera featuring femtosecond resolution

Through combined three-dimensional electromagnetic and particle tracking simulations we demonstrate a THz driven electron streak camera featuring a temporal resolution on the order of a femtosecond. The ultrafast streaking field is generated in a resonant THz sub-wavelength antenna which is illuminated by an intense single-cycle THz pulse. Since electron bunches and THz pulses are generated wit...