Infrared and terahertz in application to biomedicine

Сизов, Ф. Ф.

doi:10.15406/ijbsbe.2018.04.00114

IJBSBE

2018

DOI: 10.15406/ijbsbe.2018.04.00114

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Infrared and terahertz in application to biomedicine

Ф. Ф. Сизов¹

Abstract: A number of potential advances of infrared and terahertz technologies in application mainly to biomedicine are shortly discussed. In spite of the fact that there are well established imaging and spectroscopic techniques used in biomedicine there exists some problems where IR and THz technologies are the challenging technologies that can provide information not available from other techniques.

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Cited by 2 publications

References 21 publications

(27 reference statements)

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Quantum-Dot Single-Electron Transistors as Thermoelectric Quantum Detectors at Terahertz Frequencies

et al. 2021

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Low dimensional nano-systems are promising candidates for manipulating, controlling and capturing photons with large sensitivities and low-noise. If quantum engineered to tailor the energy of the localized electrons across the desired frequency range, they can allow devising efficient quantum sensors across any frequency domain. Here, we exploit the rich few-electrons physics to develop millimeter-wave nanodetectors employing as sensing element an InAs/InAs0.3P0.7 quantum-dot nanowire, embedded in a single electron transistor. Once irradiated with light the deeply localized quantum element exhibits an extra electromotive force driven by the photothermoelectric effect, which is exploited to efficiently sense radiation at 0.6 THz with a noise equivalent power < 8 pWHz -1/2 and almost zero dark current. The achieved results open intriguing perspectives for quantum key distributions, quantum communications and quantum cryptography at terahertz frequencies.

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Quantum-Dot Single-Electron Transistors as Thermoelectric Quantum Detectors at Terahertz Frequencies

et al. 2021

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Mode localization in plasmonic optomechanical resonators for ultrasensitive infrared sensing

Hao,

Yu,

Lang

et al. 2024

Opt. Express

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Uncooled infrared thermal detectors are gaining increasing attention owing to their ability to operate at room-temperature and their low cost. This study proposes a plasmonic optomechanical resonator for ultrasensitive long-wave infrared wave sensing based on mode localization mechanism. The mode-localized effect confines the plasmonic energy in the resonators and induces a significant modal amplitude shift through infrared irradiation, thus achieving highly sensitive detection. The results show that the detection sensitivity can reach 1.304 /mW, which is three-order improvement compared to the frequency-shift sensing metrics. The research provides a new approach to further improve the detection sensitivity of uncooled infrared sensors.

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Infrared and terahertz in application to biomedicine

Cited by 2 publications

References 21 publications

Quantum-Dot Single-Electron Transistors as Thermoelectric Quantum Detectors at Terahertz Frequencies

Quantum-Dot Single-Electron Transistors as Thermoelectric Quantum Detectors at Terahertz Frequencies

Mode localization in plasmonic optomechanical resonators for ultrasensitive infrared sensing

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