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

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

Article ID

SPP-2022-1F-04

Section

Optics and Photonics

Published

2022-09-29

How to Cite

[1]

AE De Los Reyes, AM Aquino, LNF Dela Rosa, VPP Juguilon, ICM Verona, JPR Ferrolino, NIF Cabello, HR Bardolaza, AS Somintac, AA Salvador, and ES Estacio, Investigating the terahertz emission properties of low-temperature-grown gallium arsenide (LTG-GaAs) photoconductive antenna (PCA) devices via Drude-Lorentz model, Proceedings of the Samahang Pisika ng Pilipinas 40, SPP-2022-1F-04 (2022). URL: https://proceedings.spp-online.org/article/view/SPP-2022-1F-04.