THz photoconductive antenna array based near field imaging


Journal Article

© 2015 IEEE. In this work, a 2 × 2 photoconductive antenna (PCA) array is used in a THz near field imaging setup as THz emitters while the sample is placed close to the antenna array (the antenna-sample distance is about 10 μm). A microlens array is used to couple and focus femto-second laser pulse onto each antenna. The response of a sample of gold pattern on quartz is measured. A FDTD model combined with HFSS simulation is used to predict the time domain current and near field scanning result. Good agreement between simulation and experiment is obtained.

Full Text

Duke Authors

Cited Authors

  • Tuo, M; Zhang, J; Liang, M; Ng, WR; Gehm, ME; Xin, H

Published Date

  • November 11, 2015

Published In

  • Irmmw Thz 2015 40th International Conference on Infrared, Millimeter, and Terahertz Waves

Digital Object Identifier (DOI)

  • 10.1109/IRMMW-THz.2015.7327576

Citation Source

  • Scopus