Investigating the terahertz emission properties of low-temperature-grown gallium arsenide (LTG-GaAs) photoconductive antenna (PCA) devices via Drude-Lorentz model

Authors

  • Alexander E. De Los Reyes ⋅ PH National Institute of Physics, University of the Philippines Diliman
  • Averell M. Aquino ⋅ PH National Institute of Physics, University of the Philippines Diliman
  • Lourdes Nicole F. Dela Rosa ⋅ PH National Institute of Physics, University of the Philippines Diliman
  • Vince Paul P. Juguilon ⋅ PH National Institute of Physics, University of the Philippines Diliman
  • Ivan Cedrick M. Verona ⋅ PH National Institute of Physics, University of the Philippines Diliman
  • John Paul R. Ferrolino ⋅ PH Materials Science and Engineering Program, University of the Philippines Diliman
  • Neil Irvin F. Cabello ⋅ PH National Institute of Physics, University of the Philippines Diliman
  • Hannah R. Bardolaza ⋅ PH National Institute of Physics, University of the Philippines Diliman
  • Armando S. Somintac ⋅ PH National Institute of Physics, University of the Philippines Diliman
  • Arnel A. Salvador ⋅ PH National Institute of Physics, University of the Philippines Diliman
  • Elmer S. Estacio ⋅ PH National Institute of Physics, University of the Philippines Diliman

Abstract

We study the terahertz (THz) emission properties of low-temperature-grown gallium arsenide (LTG-GaAs) photoconductive antenna devices. Using a simple Drude-Lorentz model of photocarrier transport, we simulated the effect of excitation power and bias voltage on the THz emission. For comparison, we have fabricated an LTG-GaAs PCA and measured its THz emission using a standard THz time-domain spectroscopy (THz-TDS) setup. We discuss the similarity and differences between the simulated and experimental THz emission data. These results provide important insights on the parametric investigation and optimization of PCA devices.

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Published

2022-09-29

Issue

2022: Proceedings of the 40th Samahang Pisika ng Pilipinas Physics Conference

Section

Optics and Photonics

License

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How to Cite

[1]
“Investigating the terahertz emission properties of low-temperature-grown gallium arsenide (LTG-GaAs) photoconductive antenna (PCA) devices via Drude-Lorentz model”, Proc. SPP, vol. 40, no. 1, pp. SPP–2022, Sep. 2022, Accessed: Apr. 14, 2026. [Online]. Available: https://proceedings.spp-online.org/article/view/SPP-2022-1F-04