Title :
A novel photoconductive antenna with a band gap structure for terahertz applications
Author :
Zandieh, Alireza ; Hailu, Daniel M. ; Fathi, Ehsan ; Yuekun Wang ; Kostakis, Ioannis ; Missous, Mohamed ; Safavi-Naeini, S. ; Saeedkia, Daryoosh
Author_Institution :
TeTechS Inc., Waterloo, ON, Canada
Abstract :
A highly efficient terahertz photoconductive antenna (THz-PCA) has been developed as a wideband terahertz detector for terahertz time-domain spectroscopy (THz-TDS) systems with a periodic bias line structure to remove unwanted reflections and enhance the frequency resolution. This novel THz-PCA is characterized in a THz-TDS system using a 100 fs optical pulse excitation from which a terahertz pulse width of 0.4 ps and a bandwidth of 4 THz is obtained. The THz-PCA is integrated into a rugged and easy to use packaged module as a sensor for industrial applications.
Keywords :
energy gap; submillimetre wave antennas; terahertz spectroscopy; terahertz wave detectors; THz-PCA; THz-TDS; band gap structure; bandwidth 4 THz; frequency resolution; highly efficient terahertz photoconductive antenna; industrial applications; optical pulse excitation; packaged module; periodic bias line structure; terahertz pulse width; terahertz time-domain spectroscopy; time 0.4 ps; time 100 fs; wideband terahertz detector; Antenna measurements; Bandwidth; Dipole antennas; Frequency measurement; Photonic band gap; Transmitting antennas;
Conference_Titel :
Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2014 39th International Conference on
Conference_Location :
Tucson, AZ
DOI :
10.1109/IRMMW-THz.2014.6956179
