MURAL - Maynooth University Research Archive Library



    Performance of horn-coupled transition edge sensors for L- and S-band optical detection on the SAFARI instrument


    Goldie, D.J. and Glowacka, D.M. and Withington, S. and Chen, Jiajun and Ade, P.A.R. and Morozov, Dmitry and Sudiwala, R. and Trappe, Neil and Quaranta, O. (2016) Performance of horn-coupled transition edge sensors for L- and S-band optical detection on the SAFARI instrument. Proceedings of SPIE (9914OA). ISSN 0277-786X

    [img]
    Preview
    Download (1MB) | Preview


    Share your research

    Twitter Facebook LinkedIn GooglePlus Email more...



    Add this article to your Mendeley library


    Abstract

    We describe the geometry, architecture, dark- and optical performance of ultra-low-noise transition edge sensors as THz detectors for the SAFARI instrument. The TESs are fabricated from superconducting Mo/Au bilayers coupled to impedance-matched superconducting β-phase Ta thin-film absorbers. The detectors have phonon-limited dark noise equivalent powers of order 0.5 - 1.0 aW/ √ Hz and saturation powers of order 20 - 40 fW. The low temperature test configuration incorporating micro-machined backshorts is also described, and construction and typical performance characteristics for the optical load are shown. We report preliminary measurements of the optical performance of these TESs for two SAFARI bands; L-band at 110 − 210 μm and S-band 34 − 60 μm .

    Item Type: Article
    Additional Information: Citation: D. J. Goldie, D. J. Goldie, D. M. Glowacka, D. M. Glowacka, S. Withington, S. Withington, Jiajun Chen, Jiajun Chen, P. A. R. Ade, P. A. R. Ade, D. Morozov, D. Morozov, R. Sudiwala, R. Sudiwala, N. A. Trappe, N. A. Trappe, O. Quaranta, O. Quaranta, } "Performance of horn-coupled transition edge sensors for L- and S-band optical detection on the SAFARI instrument", Proc. SPIE 9914, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VIII, 99140A (19 July 2016); doi: 10.1117/12.2232740; https://doi.org/10.1117/12.2232740
    Keywords: Transition edge sensor; far-infrared bolometer; optical characterization; ultra-low noise;
    Academic Unit: Faculty of Science and Engineering > Experimental Physics
    Item ID: 9838
    Identification Number: https://doi.org/10.1117/12.2232740
    Depositing User: Dr. Neil Trappe
    Date Deposited: 28 Aug 2018 13:55
    Journal or Publication Title: Proceedings of SPIE
    Publisher: SPIE
    Refereed: Yes
    URI:

    Repository Staff Only(login required)

    View Item Item control page

    Downloads

    Downloads per month over past year