Characterization of the THz quasi-optical channel for the measurement of the power radiated by photoconductive antennas

Characterization of the THz quasi-optical channel for the measurement of the power radiated by photoconductive antennas

Garufo, A. (TU Delft Tera-Hertz Sensing)
Carluccio, G. (TU Delft Tera-Hertz Sensing)
Freeman, Joshua R. (University of Leeds)
Bacon, David R. (University of Leeds)
Llombart Juan, N. (TU Delft Tera-Hertz Sensing)
Davies, Alexander G. (University of Leeds)
Neto, A. (TU Delft Tera-Hertz Sensing)

2017

In this paper a rigorous electromagnetic characterization of the setup for measuring the THz power radiated by pulsed photoconductive antenna is discussed. Such characterization is expressed in terms of efficiencies which quantify how much power is lost in the coupling between the various components involved in the measurement setup. The conducted analysis highlights how such efficiencies affect the energy spectrum of the measured pulsed signal. Measurement results with two different detectors will be shown during the conference and will be compared against the power estimation obtained by a recently developed equivalent circuit model for photoconductive antennas. The proposed electromagnetic modeling allows us to effectively improve the design of THz time domain systems.

Antenna measurements
Detectors
Power measurement
Antennas
principal component analysis
Lenses
Semiconductor device measurement

http://resolver.tudelft.nl/uuid:aeea376a-ad80-4800-888e-3cd384dfd7dc

https://doi.org/10.1109/IRMMW-THz.2017.8066944

IEEE, Danvers, MA

978-1-5090-6048-1

42nd International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2017

42nd International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2017, 2017-08-27 → 2017-09-01, Cancun, Quintana Roo, Mexico

Accepted Author Manuscript

Institutional Repository

conference paper

© 2017 A. Garufo, G. Carluccio, Joshua R. Freeman, David R. Bacon, N. Llombart Juan, Alexander G. Davies, A. Neto