Antenna-Coupled Titanium Microbolometers: Application for Precise Control of Radiation Patterns in Terahertz Time-Domain Systems

An ability of lensless titanium-based antenna coupled microbolometers (Ti- [Formula: see text] bolometers) operating at room temperature to monitor precisely radiation patterns in terahertz time-domain spectroscopy (THz-TDS) systems are demonstrated. To provide comprehensive picture, two different T...

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Autores principales: Qi, Liang, Minkevičius, Linas, Urbanowicz, Andrzej, Švigelj, Andrej, Grigelionis, Ignas, Kašalynas, Irmantas, Trontelj, Janez, Valušis, Gintaras
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8158144/
https://www.ncbi.nlm.nih.gov/pubmed/34070029
http://dx.doi.org/10.3390/s21103510
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author Qi, Liang
Minkevičius, Linas
Urbanowicz, Andrzej
Švigelj, Andrej
Grigelionis, Ignas
Kašalynas, Irmantas
Trontelj, Janez
Valušis, Gintaras
author_facet Qi, Liang
Minkevičius, Linas
Urbanowicz, Andrzej
Švigelj, Andrej
Grigelionis, Ignas
Kašalynas, Irmantas
Trontelj, Janez
Valušis, Gintaras
author_sort Qi, Liang
collection PubMed
description An ability of lensless titanium-based antenna coupled microbolometers (Ti- [Formula: see text] bolometers) operating at room temperature to monitor precisely radiation patterns in terahertz time-domain spectroscopy (THz-TDS) systems are demonstrated. To provide comprehensive picture, two different THz-TDS systems and Ti- [Formula: see text] bolometers coupled with three different antennas—narrowband dipole antennas for 0.3 THz, 0.7 THz and a log-periodic antenna for wideband detection—were selected for experiments. Radiation patterns, spatial beam profiles and explicit beam evolution along the propagation axis are investigated; polarization-sensitive properties under various THz emitter power ranges are revealed. It was found that the studied Ti- [Formula: see text] bolometers are convenient lensless sensors suitable to discriminate and control THz radiation pattern features in various wideband THz-TDS systems.
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spelling pubmed-81581442021-05-28 Antenna-Coupled Titanium Microbolometers: Application for Precise Control of Radiation Patterns in Terahertz Time-Domain Systems Qi, Liang Minkevičius, Linas Urbanowicz, Andrzej Švigelj, Andrej Grigelionis, Ignas Kašalynas, Irmantas Trontelj, Janez Valušis, Gintaras Sensors (Basel) Article An ability of lensless titanium-based antenna coupled microbolometers (Ti- [Formula: see text] bolometers) operating at room temperature to monitor precisely radiation patterns in terahertz time-domain spectroscopy (THz-TDS) systems are demonstrated. To provide comprehensive picture, two different THz-TDS systems and Ti- [Formula: see text] bolometers coupled with three different antennas—narrowband dipole antennas for 0.3 THz, 0.7 THz and a log-periodic antenna for wideband detection—were selected for experiments. Radiation patterns, spatial beam profiles and explicit beam evolution along the propagation axis are investigated; polarization-sensitive properties under various THz emitter power ranges are revealed. It was found that the studied Ti- [Formula: see text] bolometers are convenient lensless sensors suitable to discriminate and control THz radiation pattern features in various wideband THz-TDS systems. MDPI 2021-05-18 /pmc/articles/PMC8158144/ /pubmed/34070029 http://dx.doi.org/10.3390/s21103510 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Qi, Liang
Minkevičius, Linas
Urbanowicz, Andrzej
Švigelj, Andrej
Grigelionis, Ignas
Kašalynas, Irmantas
Trontelj, Janez
Valušis, Gintaras
Antenna-Coupled Titanium Microbolometers: Application for Precise Control of Radiation Patterns in Terahertz Time-Domain Systems
title Antenna-Coupled Titanium Microbolometers: Application for Precise Control of Radiation Patterns in Terahertz Time-Domain Systems
title_full Antenna-Coupled Titanium Microbolometers: Application for Precise Control of Radiation Patterns in Terahertz Time-Domain Systems
title_fullStr Antenna-Coupled Titanium Microbolometers: Application for Precise Control of Radiation Patterns in Terahertz Time-Domain Systems
title_full_unstemmed Antenna-Coupled Titanium Microbolometers: Application for Precise Control of Radiation Patterns in Terahertz Time-Domain Systems
title_short Antenna-Coupled Titanium Microbolometers: Application for Precise Control of Radiation Patterns in Terahertz Time-Domain Systems
title_sort antenna-coupled titanium microbolometers: application for precise control of radiation patterns in terahertz time-domain systems
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8158144/
https://www.ncbi.nlm.nih.gov/pubmed/34070029
http://dx.doi.org/10.3390/s21103510
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