A working infrared multi-object spectrograph & camera

C. G. Tinney*, S. D. Ryder, S. C. Ellis, V. Churilov, J. Dawson, G. Smith, L. Waller, J. Whittard, R. Haynes, A. Lankshear, J. R. Barton, C. J. Evans, K. Shortridge, T. Farrell, J. Bailey

*Corresponding author for this work

    Research output: Contribution to journalArticle

    47 Citations (Scopus)


    IRIS2 is a near-infrared imager and spectrograph based on a HAWAII1 HgCdTe detector. It provides wide-field (7.7'×7.7') imaging capabilities at 0.4486''/pixel sampling, long-slit spectroscopy at λ/Δλ≈2400 in each of the J, H and K passbands, and the ability to do multi-object spectroscopy in up to three masks. These multi-slit masks are laser cut, and have been manufactured for both traditional multiple slit work (≈20-40 objects in a 3'×7.4' field-of-view), multiple slit work in narrow-band filters (≈100 objects in a 5'×7.4' field-of-view), and micro-hole spectroscopy in narrow-band filters allowing the observation of ≈200 objects in a 5'×7.4' field.

    Original languageEnglish
    Pages (from-to)998-1009
    Number of pages12
    JournalProceedings of SPIE - The International Society for Optical Engineering
    Issue numberPART 2
    Publication statusPublished - 2004


    • Infrared: General
    • Instrumentation: Spectrographs
    • Techniques: Image processing

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