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640 × 512 pixel long-wavelength infrared narrowband, multiband, and broadband QWIP focal plane arrays

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5 Author(s)
Gunapala, S.D. ; Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA ; Bandara, S.V. ; Liu, J.K. ; Rafol, S.B.
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A 640 × 512 pixel, long-wavelength cutoff, narrowband (Δλ/λ∼10%) quantum-well infrared photodetector (QWIP) focal plane array (FPA), a four-band QWIP FPA in the 4-15 μm spectral region, and a broadband (Δλ/λ ∼ 42%) QWIP FPA having a 15.4 μm cutoff have been demonstrated. In this paper, we discuss the electrical and optical characterization of these FPAs, and their performance. In addition, we discuss the development of a very sensitive (NEDT ∼ 10.6 mK) 640 × 512 pixel thermal imaging camera having a 9 μm cutoff.

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Electron Devices, IEEE Transactions on  (Volume:50 ,  Issue: 12 )