Antenna-coupled titanium microbolometers : application for precise control of radiation patterns in terahertz time-domain systems

Qi, Liang (avtor), Minkevičius, Linas (avtor), Urbanowicz, Andrzej (avtor), Švigelj, Andrej (avtor), Grigelionis, Ignas (avtor), Kašalynas, Irmantas (avtor), Trontelj, Janez (avtor), Valušis, Gintaras (avtor)

An ability of lensless titanium-based antenna coupled microbolometers (Ti-µbolometers) 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-µbolometers 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-µbolometers are convenient lensless sensors suitable to discriminate and control THz radiation pattern features in various wideband THz-TDS systems.

• Jezik: Angleški jezik
• Ključne besede: titanium-based microbolometeric sensors, THz time-domain spectroscopy systems, precise THz mode control, radiation pattern monitoring
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FE - Fakulteta za elektrotehniko
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2021
• Št. strani: 11 str.
• Številčenje: Vol. 21, iss. 10, art. 3510
• PID: 20.500.12556/RUL-143985
• UDK: 621.3
• ISSN pri članku: 1424-8220
• DOI: 10.3390/s21103510
• COBISS.SI-ID: 139338243
• Datum objave v RUL: 25.01.2023

Gradivo je del revije

• Naslov: Sensors
• Skrajšan naslov: Sensors
• Založnik: MDPI
• ISSN: 1424-8220
• COBISS.SI-ID: 10176278

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.
• Začetek licenciranja: 18.05.2021

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: mikrobolometrični senzorji na osnovi titana, THz sistemi spektroskopije v časovni domeni, natančna kontrola THz načina, spremljanje vzorcev sevanja