Enhancing the Performance of Commercial Infrared Detectors by Surface Plasmons

    Research output: Contribution to journalArticle in a proceedings journalScientificpeer-review


    The feasibility to improve the response of quantum type (photonic) infrared (IR) detectors by applying surface plasmons is investigated. The HgCdTe material system is used as the detector platform of interest for which selected plasmonic structures and materials are applied and the influence studied by full-fielded electromagnetic simulations. It is shown that even for the several-micrometers-thick detector structures, similar to the commercial ones, broadband absorption enhancements of 30–40% can be achieved. The results suggest that improved, or new, pixel-level functionalities can be created for commercial IR detectors by relatively simple means. Additionally, high potential for cost reduction in high-performance IR imaging systems with multicolour capabilities is foreseen.
    Original languageEnglish
    Article number63
    Issue number13
    Publication statusPublished - 2018
    MoE publication typeA4 Article in a conference publication
    EventEurosensors 2018 Conference - Graz, Austria
    Duration: 9 Sept 201812 Dec 2018
    Conference number: 32


    • infrared detectors
    • plasmonics
    • computational simulations
    • finite element method
    • OtaNano


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