Editorial for the Special Issue on Broadband Terahertz Devices and Communication Technologies

Zhang, Lu; Pang, Xiaodan; Pitchappa, Prakash

doi:10.3390/mi14051044

Cited by 2 publications

(1 citation statement)

References 11 publications

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“…The applications of the developed THz systems spread their roots in various scientific fields. Most research and application solutions are devoted to medicine and biomedicine [20][21][22], pharmaceutical product control [23], security [24], space exploration [3,25], polymer and biopolymer analysis [26][27][28], waste management [29,30] and communication technologies [31,32]. Some attempts were also made to study food and agricultural products [33], construction and building materials [34], art and archaeology [35] as well as environmental monitoring [36].…”

Section: Introductionmentioning

confidence: 99%

Analytical Gas Sensing in the Terahertz Spectral Range

Abina,

Puc,

Jazbinšek

et al. 2023

Micromachines

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Exploiting the terahertz (THz) part of the electromagnetic spectrum is attracting attention in various scientific and applied disciplines worldwide. THz technology has also revealed its potential as an effective tool for gas analysis in astronomy, biomedicine and chemical analysis. Recently, it has also become important in environmental applications for monitoring hazardous and toxic gases in the atmosphere. This paper gives an overview of THz gas detection analytical methods for environmental and biomedical applications, starting with a brief introduction to THz technology and an explanation of the interaction of THz radiation with gaseous species and the atmosphere. The review focuses on several gaseous species and groups of air pollutants that have been or can be analysed by THz spectrometry. The review concludes that different but complementary THz detection methods allow unique detection, identification and quantification of gaseous and particulate air pollutants with high selectivity, specificity and sensitivity. THz detection methods also allow further technological improvements and open new application possibilities.

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Section: Introductionmentioning

confidence: 99%

Analytical Gas Sensing in the Terahertz Spectral Range

Abina,

Puc,

Jazbinšek

et al. 2023

Micromachines

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Role of the Hall effect on THz output power enhancement in plasmonic photoconductive antennas

Kashfi,

Ghattan Kashani,

Prajapati

et al. 2024

J. Opt. Soc. Am. B

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This study proposes a new, to our knowledge, type of photoconductive antenna that incorporates magnetic biasing and plasmonic layers to increase light absorption in the substrate and enhance the terahertz (THz) output power. The top grating layers are coated with a silicon nitride layer (Si3N4) to enhance optical transmission to the photoconductive region, resulting in increased carrier generation. Using plasmonic electrodes in photoconductive THz sources eliminates the need for short-carrier lifetime semiconductors. Application of the Hall effect enables the use of a lower-power laser and a lower voltage bias while generating increased THz power at the output. The performance of the magnetic-biased plasmonic photoconductive antenna is compared to that of a plasmonic photoconductive antenna without external magnetic bias, and the results evince a promising outcome significantly more extensive than both.

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Editorial for the Special Issue on Broadband Terahertz Devices and Communication Technologies

Abstract: The remarkable explosion of wireless devices and bandwidth-consuming Internet applications have boosted the demand for wireless communications with ultra-high data rate [...]

Cited by 2 publications

References 11 publications

Analytical Gas Sensing in the Terahertz Spectral Range

Analytical Gas Sensing in the Terahertz Spectral Range

Role of the Hall effect on THz output power enhancement in plasmonic photoconductive antennas

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