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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Issue

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

Physics 2.0.2022: Renormalizing uncertainties with Physics
19-21 October 2022, Legazpi City

Please visit the SPP2022 activity webpage for more information on this year's Physics Congress.

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.