Investigation of radiation collection by InSb infrared focal-plane arrays with micro-optic structures

N. Guo, W. Hu, X. Chen, Wen Lei, Y. Lv, X. Zhang, J. Si, W. Lu

    Research output: Contribution to journalArticle

    6 Citations (Scopus)

    Abstract

    Three designs of micro-optic structures have been analyzed by two-dimensional simulation. Compared with traditional spherical microlenses, the micro-optic structures have the same ability to collect radiation and do not have the disadvantages of traditional microlenses. In our analysis the micro-optic structures are simple grooved notches above the space between two adjacent mesas. We also investigate the characteristics of InSb focal-plane arrays with both spherical microlenses and micro-optic structures under oblique incident radiation. Empirical formulas were derived to describe the response and crosstalk as a function of incident radiation angle. Our results show that the micro-optic structures can be effectively used in radiation collection for InSb infrared focal-plane arrays. © 2013 TMS.
    Original languageEnglish
    Pages (from-to)3181-3185
    JournalJournal of Electronic Materials
    Volume42
    Issue number11
    DOIs
    Publication statusPublished - 2013

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