&lt;title&gt;Si:As IBC array performance for SIRTF/IRAC&lt;/title&gt;

McMurray, Robert E.; Johnson, R. R.; McCreight, Craig R.; McKelvey, Mark E.; Garnett, James D.; Hoffman, Alan W.; Lum, Nancy A.; Lum, W. Y.; Smith, Michael S.; Sparkman, Kevin; Toth, Andrew; Domingo, George; Krebs, Danny J.; Jhabvala, M.

doi:10.1117/12.406573

Cited by 15 publications

(11 citation statements)

References 2 publications

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“…It is assumed that detector noise will be dominated by read noise since dark currents below 10 e/pix/s have been routinely achieved for modern mid-IR detector FPAs such as Si:As IBC devices. 5,6 The expected 80% encircled energy distribution over mid-IR wavelengths for SOFIA is estimated to be at least 3 arcsec. Therefore a scale of 1.5 arcsec/pixel will enable critical sampling.…”

Section: Requirementsmentioning

confidence: 99%

“…These devices have exhibited QE as high as 60% at 6 µm with dark currents below 1 e-/s/pixel. 6 The hybrid device combines the backside-illuminated IBC detector substrate described above with the ALADDIN III ROIC described in Section 4.1. The two substrates are joined via a grid of indium interconnects, with an epoxy backfill providing additional strength.…”

Section: Detector Materialsmentioning

confidence: 99%

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Development and testing of a 1024×1024 pixel Si:As IBC detector for SOFIA-like applications

et al. 2003

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Airborne and space telescope astronomical observations in the 5-25 micron wavelength region are critical for understanding the physical conditions, composition, chemistry, and excitation of many environments in the interstellar medium, external galaxies, solar system objects, extra-solar systems, and stars. The scientific impact is particularly unique in the 5-8 micron and 14-25 micron regions which are inaccessible or poorly observed from ground-based observatories. Large format mid-infrared detectors sensitive over these wavelengths and operable under moderate backgrounds (~10 6 photons/s/pixel at R=2000, at 10 microns) are essential for efficient large-area survey imaging and for taking moderate resolution spectra over a large spectral range. Both SOFIA and passively cooled Explorer observatories could benefit from this technology. Current first-light SOFIA instruments use small-format mid-infrared focal plane arrays of sizes 256 x 256 pixels. With the collaboration of Raytheon Infrared Operations, NASA-Ames Research Center has developed and tested the first 1024 x 1024 mid-infrared device suitable for operating under moderate backgrounds: a combination of the ALADDIN III readout multiplexer, cryo-processed for 6 K operation, with Si:As IBC detector material designed for high QE. This device has exhibited low dark current, moderate noise levels, and > 200,000 electron linear well size at 6 K operation. We conclude with suggestions for future device development for optimal performance under moderate background, SOFIA-and low Earth orbit observing conditions.

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Section: Requirementsmentioning

confidence: 99%

Section: Detector Materialsmentioning

confidence: 99%

Development and testing of a 1024×1024 pixel Si:As IBC detector for SOFIA-like applications

et al. 2003

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“…Raytheon Vision Systems (RVS) of Goleta, CA, was competitively selected in May 2003 to provide the detectors for MIRI. Although the MIRI detectors (more properly called Sensor Chip Assemblies, or SCAs) are very closely related to the 256×256 pixel Si:As arrays currently flying in the IRAC instrument aboard the Spitzer Space Telescope [4], the 16× increase in the number of pixels, the tighter sensitivity requirements, and the simple fact that the Spitzer SCAs were produced more than 10 years ago necessitated a lengthy development process to ensure high performing detectors for MIRI. Figure 1.…”

Section: Device Description and Historymentioning

confidence: 99%

Performance of the JWST/MIRI Si:As detectors

et al. 2008

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The Mid-Infrared Instrument (MIRI) is a 5 to 28 micron imager and spectrometer that is slated to fly aboard the JWST in 2013. Each of the flight arrays is a 1024×1024 pixel Si:As impurity band conductor detector array, developed by Raytheon Vision Systems. JPL, in conjunction with the MIRI science team, has selected the three flight arrays along with their spares. We briefly summarize the development of these devices, then describe the measured performance of the flight arrays along with supplemental data from sister flight-like parts.

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“…The total system throughput is assumed to be the same as the pre-flight predictions 13 , based on the measurements of the optical components 18 and detector properties 6,8 . The IRAC/Spitzer total throughput properties are summarized in Table 3.…”

Section: System Throughputmentioning

confidence: 99%