Update on 10μm pixel pitch MCT-based focal plane array with enhanced functionalities

Reibel, Yann; Péré‐Laperne, Nicolas; Rubaldo, L.; Augey, Thibault; Decaens, Gilbert; Badet, Vincent; Baud, Laurent; Roumegoux, Julien; Kessler, Antoine; Maillart, Patrick; Ricard, N.; Pacaud, O.; Destéfanis, G.

doi:10.1117/12.2178954

Cited by 12 publications

(9 citation statements)

References 11 publications

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“…In 2012, DEFIR demonstrated for the first time a 10μm pitch FPA. In 2014, SOFRADIR and CEA-LETI developed the famous DAPHNIS digital detector components, DAPHNIS-HD720 and DAPHNIS-XGA, by combining "Small Pixel Pitch" and "HOT" technology [15,45]. The pixel pitch of the ROIC is 10μm and the array size are 1280×720 and 1024×768 respectively.…”

Section: Other Research Results In French Israeli and Turkeymentioning

confidence: 99%

Research progress on digital ROIC of infrared focal plane array detector

Zhao,

Zhang,

Yuan

et al. 2023

Fourteenth International Conference on Information Optics and Photonics (CIOP 2023)

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Section: Other Research Results In French Israeli and Turkeymentioning

confidence: 99%

Research progress on digital ROIC of infrared focal plane array detector

Zhao,

Zhang,

Yuan

et al. 2023

Fourteenth International Conference on Information Optics and Photonics (CIOP 2023)

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“…The development of the FPA detectors with improved characteristics is underway. New types of FPAs are now making their performance with temperature sensitivity 10 mK 98 and pixel size 10 μm 99 . With this, the image resolution and power sensitivities of the THz-to-IR converters would be correspondingly enhanced.…”

Section: Discussionmentioning

confidence: 99%

Terahertz-to-infrared converters for imaging the human skin cancer: challenges and feasibility

et al. 2023

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Purpose: Terahertz (THz) medical imaging is a promising noninvasive technique for monitoring the skin's conditions, early detection of the human skin cancer, and recovery from burns and wounds. It can be applied for visualization of the healing process directly through clinical dressings and restorative ointments, minimizing the frequency of dressing changes. The THz imaging technique is cost effective, as compared to the magnetic resonance method. Our aim was to develop an approach capable of providing better image resolution than the commercially available THz imaging cameras.Approach: The terahertz-to-infrared (THz-to-IR) converters can visualize the human skin cancer by converting the latter's specific contrast patterns recognizable in THz radiation range into IR patterns, detectable by a standard IR imaging camera. At the core of suggested THz-to-IR converters are flat matrices transparent both in the THz range to be visualized and in the operating range of the IR camera, these matrices contain embedded metal nanoparticles (NPs), which, when irradiated with THz rays, convert the energy of THz photons into heat and become nanosources of IR radiation detectable by an IR camera. Results:The ways of creating the simplest converter, as well as a more complex converter with wider capabilities, are considered. The first converter is a gelatin matrix with gold 8.5-nm diameter NPs, and the second is a polystyrene matrix with 2-nm diameter NPs from copper-nickel MONEL ® alloy 404.Conclusions: An approach with a THz-to-IR converter equipped with an IR camera is promising in that it could provide a better image of oncological pathology than the commercially available THz imaging cameras do.

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“…FPAs of 1 cm 2 still dominate the IR market, while pixel pitch has decreased to 15 μm during the last few years, now reaching 12 μm [9], 10 μm [10,11], and even 5 μm in test devices [12,13]. This trend is expected to continue.…”

Section: Swap Considerationsmentioning

confidence: 99%

Challenges of small-pixel infrared detectors: a review

2016

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In the last two decades, several new concepts for improving the performance of infrared detectors have been proposed. These new concepts particularly address the drive towards the so-called high operating temperature focal plane arrays (FPAs), aiming to increase detector operating temperatures, and as a consequence reduce the cost of infrared systems. In imaging systems with the above megapixel formats, pixel dimension plays a crucial role in determining critical system attributes such as system size, weight and power consumption (SWaP). The advent of smaller pixels has also resulted in the superior spatial and temperature resolution of these systems. Optimum pixel dimensions are limited by diffraction effects from the aperture, and are in turn wavelength-dependent. In this paper, the key challenges in realizing optimum pixel dimensions in FPA design including dark current, pixel hybridization, pixel delineation, and unit cell readout capacity are outlined to achieve a sufficiently adequate modulation transfer function for the ultra-small pitches involved. Both photon and thermal detectors have been considered. Concerning infrared photon detectors, the trade-offs between two types of competing technology-HgCdTe material systems and III-V materials (mainly barrier detectors)-have been investigated.

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Update on 10μm pixel pitch MCT-based focal plane array with enhanced functionalities

Cited by 12 publications

References 11 publications

Research progress on digital ROIC of infrared focal plane array detector

Research progress on digital ROIC of infrared focal plane array detector

Terahertz-to-infrared converters for imaging the human skin cancer: challenges and feasibility

Challenges of small-pixel infrared detectors: a review

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