Type-II superlattice SWaP IDDCA production at IRnova

Höglund, Linda; Naureen, Shagufta; Diel, Waldemar; Smuk, Sergiy; Ivanov, Ruslan; Smuk, Anton; Delmas, M.; Evans, Dean; Rihtnesberg, David; Almqvist, Susanne; Becanovic, Smilja; Tinghag, Pia; Fattala, Saad; Trybom, Erik; Costard, E.

doi:10.1117/12.2558707

Cited by 2 publications

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“…IRnova demonstrated its first SWaP detector in 2019 [1] and one year later, IRnova announced the serial production of Oden MW, a reduced SWaP integrated detector dewar cooler assembly with detector weights as low as 230 g, with cooler power consumption reduced to 1.8 W, which is 50 % lower compared to regular detectors [2]. In 2022, a significant upgrade of the Oden MW detector was released with operating temperatures up to 150 K with maintained high performance [3].…”

Section: Introductionmentioning

confidence: 99%

Type-II superlattice detectors for high-performance SWaP detectors and HOT HD applications at IRnova

Delmas

Ivanov

Ramos

et al. 2023

Infrared Technology and Applications XLIX

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In this paper, the main parameters contributing to the high-imaging quality of IRnova’s Type-II superlattice (T2SL) detectors are studied: the sensitivity, uniformity, modulation transfer function (MTF) and random telegraph signal (RTS). High-sensitivity and good uniformity across the detectors are displayed by their low-noise equivalent temperature difference (NETD) with average values of 22 mK (@ F/5.5, 125 K) and very narrow histograms. MTF values very close to the ideal ones have been demonstrated for Oden MW detectors, reaching 0.6 at the Nyquist frequency, along with a single-digit number of flickering pixels. Furthermore, thanks to the optimization of design and fabrication processes of Oden MW detectors, diffusion-limited dark current densities have been reached that are independent of the perimeter/area ratio for the pitch sizes down to 10 μm. Leveraging this achievement is the upcoming Njord MW HD detector (1280×1024 pixels, 10 μm pitch), for which the bias- and temperature-dependence have been assessed using IRnova’s in-house simulations tools. NETD values lower than 25 mK are shown for temperatures up to 140 K. The simulations were based on measured bias- and temperature- dependencies of the detectors on 10 μm pitch, combined with parameters of the dedicated 1280×1024 ROIC on 10 μm pitch design.

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Section: Introductionmentioning

confidence: 99%

Type-II superlattice detectors for high-performance SWaP detectors and HOT HD applications at IRnova

Delmas

Ivanov

Ramos

et al. 2023

Infrared Technology and Applications XLIX

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“…To extend the cut-off wavelength up to 5 µm, one can consider an InAs/GaSb T2SL [9,10]. Even if this new technology begins to be commercially available [11], Ga-containing T2SL devices suffer from a low minority carrier lifetime (100 ns in the MWIR) due to the presence of Ga-related native defects [12]. As a consequence, such T2SL detectors exhibit temperature operation lower than 110 K for a 5 µm cut-off [13].…”

Section: Introductionmentioning

confidence: 99%

Structural, Optical and Electrical Characterizations of Midwave Infrared Ga-Free Type-II InAs/InAsSb Superlattice Barrier Photodetector

et al. 2020

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In this paper, a full set of structural, optical and electrical characterizations performed on midwave infrared barrier detectors based on a Ga-free InAs/InAsSb type-II superlattice, grown by molecular beam epitaxy (MBE) on a GaSb substrate, are reported and analyzed. a Minority carrier lifetime value equal to 1 µs at 80 K, carried out on dedicated structure showing photoluminescence peak position at 4.9 µm, is extracted from a time resolved photoluminescence measurement. Dark current density as low as 3.2 × 10−5 A/cm2 at 150 K is reported on the corresponding device exhibiting a 50% cut-off wavelength around 5 µm. A performance analysis through normalized spectral response and dark current density-voltage characteristics was performed to determine both the operating bias and the different dark current regimes.

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Type-II superlattice SWaP IDDCA production at IRnova

Cited by 2 publications

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Type-II superlattice detectors for high-performance SWaP detectors and HOT HD applications at IRnova

Type-II superlattice detectors for high-performance SWaP detectors and HOT HD applications at IRnova

Structural, Optical and Electrical Characterizations of Midwave Infrared Ga-Free Type-II InAs/InAsSb Superlattice Barrier Photodetector

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