A Report on terahertz notch and low pass filters based on U-shaped arrays

Authors

Mark Jayson Felix ⋅ PH National Institute of Physics, University of the Philippines Diliman
Joselito Muldera ⋅ PH National Institute of Physics, University of the Philippines Diliman
Armando Somintac ⋅ PH National Institute of Physics, University of the Philippines Diliman
Arnel Salvador ⋅ PH National Institute of Physics, University of the Philippines Diliman
Elmer Estacio ⋅ PH National Institute of Physics, University of the Philippines Diliman

Abstract

The search for fast, low-cost, and large scale fabrication of terahertz (THz) filters is still a challenge up to this present time. In this work, characteristic notch and low-pass filters operating in the (THz) region based on the plasmonic and diffractive lattice resonance of U-shaped structures is demonstrated. The fabrication of the THz filters based on U-shaped structures is carried out via low-cost photolithography and etching process. A photomask printed using commercial printer instead of a photomask fabricated via electron beam lithography was used for the photolithographic process which lessens the overall fabrication time and cost. The fabricated U-shaped structures were characterized via THz Transmission Time-Domain Spectroscopy. FDTD simulations of the U-shaped structures were also conducted and compared to experimental THz spectra and good agreement on the lineshape is observed. The discrepancy between the experimental and simulated THz spectra is mainly attributed to the structural disorders on the fabricated U-shaped structures.

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Issue

2014: Proceedings of the 32nd Samahang Pisika ng Pilipinas Physics Congress

Article ID

SPP2014-PA-13

Section

Poster Session PA

Published

2014-10-17

How to Cite

[1]

MJ Felix, J Muldera, A Somintac, A Salvador, and E Estacio, A Report on terahertz notch and low pass filters based on U-shaped arrays, Proceedings of the Samahang Pisika ng Pilipinas 32, SPP2014-PA-13 (2014). URL: https://proceedings.spp-online.org/article/view/1860.