Event Details
Terahertz Field Enhancement Using Waveguide Coupling
Presenter: Levi Smith
Supervisor: Dr. Thomas Darcie
Date: Wed, July 30, 2014
Time: 11:00:00 - 12:30:00
Place: EOW 430
ABSTRACT
Abstract
We demonstrate experimentally the coupling of a THz beam into a laser-machined double-tapered thick slot waveguide operating between 0.3 and 2 THz. Simulation reveals that the THz field generated by a standard photoconductive antenna coupled to an undoped aspheric HRFZ-silicon focusing lens can be enhanced by 30dB in the 40 micrometer taper waist, relative to a traditional Gaussian beam waist (at 1 THz). Analysis of the 8 dB insertion loss reveals positive implications for coupling between THz transceivers and in-plane emitting antennas or lowloss THz waveguides.