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Spectroscopic terahertz imaging at room temperature employing microbolometer terahertz sensors and its application to the study of carcinoma tissues
ID Kašalynas, Irmantas (Author), ID Venckevičius, Rimvydas (Author), ID Minkevičius, Linas (Author), ID Sešek, Aleksander (Author), ID Wahaia, Faustino (Author), ID Tamošiunas, Vincas (Author), ID Voisiat, Bogdan (Author), ID Seliuta, Dalius (Author), ID Valušis, Gintaras (Author), ID Švigelj, Andrej (Author), ID Trontelj, Janez (Author)

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Abstract
A terahertz (THz) imaging system based on narrow band microbolometer sensors (NBMS) and a novel diffractive lens was developed for spectroscopic microscopy applications. The frequency response characteristics of the THz antenna-coupled NBMS were determined employing Fourier transform spectroscopy. The NBMS was found to be a very sensitive frequency selective sensor which was used to develop a compact all-electronic system for multispectral THz measurements. This system was successfully applied for principal components analysis of optically opaque packed samples. A thin diffractive lens with a numerical aperture of 0.62 was proposed for the reduction of system dimensions. The THz imaging system enhanced with novel optics was used to image for the first time non-neoplastic and neoplastic human colon tissues with close to wavelength-limited spatial resolution at 584 GHz frequency. The results demonstrated the new potential of compact RT THz imaging systems in the fields of spectroscopic analysis of materials and medical diagnostics.

Language:English
Keywords:compact THz sensors and components, THz imaging systems, multispectral THz imaging, medical THz imaging
Work type:Article
Typology:1.01 - Original Scientific Article
Organization:FE - Faculty of Electrical Engineering
Publication status:Published
Publication version:Version of Record
Year:2016
Number of pages:15 str.
Numbering:Vol. 16, iss. 4, art. 432
PID:20.500.12556/RUL-130312 This link opens in a new window
UDC:621.3.029.6
ISSN on article:1424-8220
DOI:10.3390/s16040432 This link opens in a new window
COBISS.SI-ID:11319124 This link opens in a new window
Publication date in RUL:13.09.2021
Views:1028
Downloads:144
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Record is a part of a journal

Title:Sensors
Shortened title:Sensors
Publisher:MDPI
ISSN:1424-8220
COBISS.SI-ID:10176278 This link opens in a new window

Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Licensing start date:01.04.2016

Secondary language

Language:Slovenian
Keywords:kompaktni THz senzorji in komponente, THz slikovni sistemi, multispektralne THz slike, medicinske THz slike

Projects

Funder:Other - Other funder or multiple funders
Funding programme:COST
Project number:BM1205

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