Designs and applications of corrugated QWIPs

K. K. Choi, C. Monroy, A. Goldberg, G. Dang, M. Jhabvala, A. La, T. Tamir, Kok-Ming Leung, A. Majumdar, Jinjin Li, D. C. Tsui

    Research output: Contribution to journalArticle

    Abstract

    In this paper, we will describe the performance of two long wavelength 1024 × 1024 corrugated quantum well infrared photodetector focal plane arrays (C-QWIP FPAs) with cutoff wavelengths at 8.6 and 9.0 μm, respectively. The FPAs are background limited (BLIP) at around 76 K in an f/1.8 optical system. In addition to the high performance of these C-QWIPs, the corresponding FPAs are also easily producible, making them ideal for large production. We will discuss the optimization of the detectors for different applications. Since corrugated coupling is wavelength insensitive, it is capable of broadband and multi-color detection. We will present a GaAs/AlGaAs broadband detector based on a binary superlattice design. Incorporating the broadband characteristic in a high gain InGaAs/InP material, C-QWIPs with large background photocurrent can be obtained for high speed applications. For multi-color detection, we have investigated two different approaches. One is based on a voltage-tunable, two-color QWIP material, which can be switched between two detection wavelengths simply by changing the detector bias. Stacking two of these similar QWIPs together and separating them with a middle contact layer, a voltage tunable, four-color detector array can be fabricated. A second approach is to combine a broadband QWIP material with a wavelength-selective light coupling method. Using a light coupling geometry to control the detection wavelength of individual pixels, a large number of wavelengths can be detected based on a single broadband detector material. Published by Elsevier B.V.

    Original languageEnglish (US)
    Pages (from-to)76-90
    Number of pages15
    JournalInfrared Physics and Technology
    Volume47
    Issue number1-2
    DOIs
    StatePublished - Oct 2005

    Fingerprint

    quantum well infrared photodetectors
    Wavelength
    broadband
    Detectors
    wavelengths
    detectors
    Color
    color
    Quantum well infrared photodetectors
    Focal plane arrays
    Electric potential
    electric potential
    focal plane devices
    high gain
    Photocurrents
    Optical systems
    photocurrents
    aluminum gallium arsenides
    cut-off
    Pixels

    Keywords

    • FPA
    • Infrared detector
    • Light-coupling
    • Quantum well

    ASJC Scopus subject areas

    • Atomic and Molecular Physics, and Optics

    Cite this

    Choi, K. K., Monroy, C., Goldberg, A., Dang, G., Jhabvala, M., La, A., ... Tsui, D. C. (2005). Designs and applications of corrugated QWIPs. Infrared Physics and Technology, 47(1-2), 76-90. https://doi.org/10.1016/j.infrared.2005.02.013

    Designs and applications of corrugated QWIPs. / Choi, K. K.; Monroy, C.; Goldberg, A.; Dang, G.; Jhabvala, M.; La, A.; Tamir, T.; Leung, Kok-Ming; Majumdar, A.; Li, Jinjin; Tsui, D. C.

    In: Infrared Physics and Technology, Vol. 47, No. 1-2, 10.2005, p. 76-90.

    Research output: Contribution to journalArticle

    Choi, KK, Monroy, C, Goldberg, A, Dang, G, Jhabvala, M, La, A, Tamir, T, Leung, K-M, Majumdar, A, Li, J & Tsui, DC 2005, 'Designs and applications of corrugated QWIPs', Infrared Physics and Technology, vol. 47, no. 1-2, pp. 76-90. https://doi.org/10.1016/j.infrared.2005.02.013
    Choi KK, Monroy C, Goldberg A, Dang G, Jhabvala M, La A et al. Designs and applications of corrugated QWIPs. Infrared Physics and Technology. 2005 Oct;47(1-2):76-90. https://doi.org/10.1016/j.infrared.2005.02.013
    Choi, K. K. ; Monroy, C. ; Goldberg, A. ; Dang, G. ; Jhabvala, M. ; La, A. ; Tamir, T. ; Leung, Kok-Ming ; Majumdar, A. ; Li, Jinjin ; Tsui, D. C. / Designs and applications of corrugated QWIPs. In: Infrared Physics and Technology. 2005 ; Vol. 47, No. 1-2. pp. 76-90.
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    AU - La, A.

    AU - Tamir, T.

    AU - Leung, Kok-Ming

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