Enhanced terahertz emission of semi – insulating gallium arsenide with metal grating structures

Authors

Maria Angela B. Faustino ⋅ PH Material Science and Engineering Program, University of the Philippines Diliman
Lorenzo F. Lopez ⋅ PH Material Science and Engineering Program, University of the Philippines Diliman
Jessica Pauline Afalla ⋅ PH National Institute of Physics, University of the Philippines Diliman
Mark Jayson Felix ⋅ PH Material Science and Engineering Program, University of the Philippines Diliman
Joselito Muldera ⋅ PH National Institute of Physics, University of the Philippines Diliman
John Paul Ferrolino ⋅ PH National Institute of Physics, University of the Philippines Diliman
Arnel A. Salvador ⋅ PH National Institute of Physics, University of the Philippines Diliman
Armando S. Somintac ⋅ PH Material Science and Engineering Program, University of the Philippines Diliman
Elmer S. Estacio ⋅ PH National Institute of Physics, University of the Philippines Diliman

Abstract

Enhanced terahertz emission of semi-insulating gallium arsenide with metal grating structures is reported. Metal deposition was done via resistive evaporation of 150 nm-thick nickel/gold line array with sub-wavelength features. Terahertz emission of the samples was measured using standard terahertz-time domain spectroscopy in the transmission excitation geometry. The enhancement was reported to be of one order of magnitude, relative to the bare substrate, which is currently attributed to surface plasmon polariton effects.

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Issue

2015: Proceedings of the 33rd Samahang Pisika ng Pilipinas Physics Congress

Article ID

SPP-2015-3A-06

Section

Photonics and Terahertz, Optics and Signal Processing

Published

2015-06-03

How to Cite

[1]

MAB Faustino, LF Lopez, JP Afalla, MJ Felix, J Muldera, JP Ferrolino, AA Salvador, AS Somintac, and ES Estacio, Enhanced terahertz emission of semi – insulating gallium arsenide with metal grating structures, Proceedings of the Samahang Pisika ng Pilipinas 33, SPP-2015-3A-06 (2015). URL: https://proceedings.spp-online.org/article/view/1132.