Antenna-coupled microbolometer based uncooled 2D array and camera for 2D real-time terahertz imaging

Simoens, F.; Meilhan, Jean–Baptiste; Gidon, S.; Lasfargues, Gilles; Dera, Jerzy; Ouvrier-Buffet, J. L.; Pocas, S.; Rabaud, W.; Guellec, Fabrice; Dupont, Bertrand; Simon, A.

doi:10.1117/12.2024861

Cited by 5 publications

(5 citation statements)

References 11 publications

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“…The latest developments of micro-bolometer arrays for use in the THz range above 0.6 THz, viz. wavelengths shorter than 500 μm, include cameras from the National Optics Institute (INO, Québec, Canada) [ 11 ], the NEC Corporation (Tokyo, Japan) [ 12 ], and the French Alternative Energies and Atomic Energy Commission (CEA Leti) [ 13 , 14 ]. Very recently a non-thermal large-size two-dimensional detector based on a commercial Si CCD has been reported for the visualization of intense THz pulses [ 15 , 16 ].…”

Section: Introductionmentioning

confidence: 99%

Comparison of Thermal Detector Arrays for Off-Axis THz Holography and Real-Time THz Imaging

Hack

Valzania

Gäumann

et al. 2016

Sensors

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In terahertz (THz) materials science, imaging by scanning prevails when low power THz sources are used. However, the application of array detectors operating with high power THz sources is increasingly reported. We compare the imaging properties of four different array detectors that are able to record THz radiation directly. Two micro-bolometer arrays are designed for infrared imaging in the 8–14 μm wavelength range, but are based on different absorber materials (i) vanadium oxide; (ii) amorphous silicon; (iii) a micro-bolometer array optimized for recording THz radiation based on silicon nitride; and (iv) a pyroelectric array detector for THz beam profile measurements. THz wavelengths of 96.5 μm, 118.8 μm, and 393.6 μm from a powerful far infrared laser were used to assess the technical performance in terms of signal to noise ratio, detector response and detectivity. The usefulness of the detectors for beam profiling and digital holography is assessed. Finally, the potential and limitation for real-time digital holography are discussed.

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Section: Introductionmentioning

confidence: 99%

Comparison of Thermal Detector Arrays for Off-Axis THz Holography and Real-Time THz Imaging

Hack

Valzania

Gäumann

et al. 2016

Sensors

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“…For a review on the use of uncooled bolometer-type infrared detectors for real-time THz imaging, see also [88,89]. Microbolometers specifically designed for THz radiation include cameras from the National Optics Institute (INO, Québec, Canada) [90], the NEC Corporation (Tokyo, Japan) [91], and the French Alternative Energies and Atomic Energy Commission (CEA Leti) [92,93].…”

Section: Thz Detectorsmentioning

confidence: 99%

THz coherent lensless imaging

et al. 2019

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Imaging with THz radiation has proved an important tool for both fundamental science and industrial use. Here we review a class of THz imaging implementations, named coherent lensless imaging, that reconstruct the coherent response of arbitrary samples with a minimized experimental setup based only on a coherent source and a camera. After discussing the appropriate sources and detectors to perform them, we detail the fundamental principles and implementations of THz digital holography and phase retrieval. These techniques owe a lot to imaging with different wavelengths, yet innovative concepts are also being developed in the THz range and are ready to be applied in other spectral ranges. This makes our review useful for both the THz and imaging communities, and we hope it will foster their interaction.

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“…According to different detection methods, terahertz imaging can be divided into array imaging and point-by-point scanning imaging [11]. Array imaging usually uses CCD cameras [12], CMOS cameras [13] or microbolometer cameras [14] as the detectors, which has advantages of high integration and real-time imaging. However, due to the limitation of THz array detectors, the resolution of array imaging cannot be very high.…”

Section: Introductionmentioning

confidence: 99%

Advances on terahertz single-pixel imaging

Wei

Pang

et al. 2022

Front. Phys.

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Single-pixel imaging is a novel imaging technique that can obtain image information through a single-pixel detector. It can effectively avoid the problem of lack of high-quality area array detectors in the terahertz band, and has attracted the attention of a large number of researchers in recent years. In this paper, the basic imaging principles, terahertz beam modulation methods and typical image reconstruction algorithms for terahertz single-pixel imaging are introduced and discussed, as well as its research progresses and developing trends.

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Antenna-coupled microbolometer based uncooled 2D array and camera for 2D real-time terahertz imaging

Cited by 5 publications

References 11 publications

Comparison of Thermal Detector Arrays for Off-Axis THz Holography and Real-Time THz Imaging

Comparison of Thermal Detector Arrays for Off-Axis THz Holography and Real-Time THz Imaging

THz coherent lensless imaging

Advances on terahertz single-pixel imaging

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