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    Diffraction-limited integral-field spectroscopy for extreme adaptive optics systems with the multicore fiber-fed integral-field unit

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    Author
    Haffert, S.Y.
    Harris, R.J.
    Zanutta, A.
    Pike, F.A.
    Bianco, A.
    Redaelli, E.
    Benoît, A.
    Maclachlan, D.G.
    Ross, C.A.
    Gris-Sánchez, I.
    Trappen, M.D.
    Xu, Y.
    Blaicher, M.
    Maier, P.
    Riva, G.
    Sinquin, B.
    Kulcsár, C.
    Bharmal, N.A.
    Gendron, E.
    Staykov, L.
    Morris, T.J.
    Barboza, S.
    Muench, N.
    Bardou, L.
    Prengère, L.
    Raynaud, H.-F.
    Hottinger, P.
    Anagnos, T.
    Osborn, J.
    Koos, C.
    Thomson, R.R.
    Birks, T.A.
    Snellen, I.A.G.
    Keller, C.U.
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    Affiliation
    University of Arizona, Steward Observatory
    Issue Date
    2020
    Keywords
    adaptive optics
    astrophotonics
    exoplanets
    integral-field spectroscopy
    
    Metadata
    Show full item record
    Publisher
    SPIE
    Citation
    Haffert, S. Y., Harris, R. J., Zanutta, A., Pike, F. A., Bianco, A., Redaelli, E., ... & Keller, C. U. (2020). Diffraction-limited integral-field spectroscopy for extreme adaptive optics systems with the multicore fiber-fed integral-field unit. Journal of Astronomical Telescopes, Instruments, and Systems, 6(4), 045007.
    Journal
    Journal of Astronomical Telescopes, Instruments, and Systems
    Rights
    Copyright © 2020 SPIE.
    Collection Information
    This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.
    Abstract
    Direct imaging instruments have the spatial resolution to resolve exoplanets from their host star. This enables direct characterization of the exoplanets atmosphere, but most direct imaging instruments do not have spectrographs with high enough resolving power for detailed atmospheric characterization. We investigate the use of a single-mode diffraction-limited integral-field unit that is compact and easy to integrate into current and future direct imaging instruments for exoplanet characterization. This achieved by making use of recent progress in photonic manufacturing to create a single-mode fiber-fed image reformatter. The fiber link is created with three-dimensional printed lenses on top of a single-mode multicore fiber that feeds an ultrafast laser inscribed photonic chip that reformats the fiber into a pseudoslit. We then couple it to a first-order spectrograph with a triple stacked volume phase holographic grating for a high efficiency over a large bandwidth. The prototype system has had a successful first-light observing run at the 4.2-m William Herschel Telescope. The measured on-sky resolving power is between 2500 and 3000, depending on the wavelength. With our observations, we show that single-mode integral-field spectroscopy is a viable option for current and future exoplanet imaging instruments. © 2020 Society of Photo-Optical Instrumentation Engineers (SPIE).
    Note
    Immediate access
    ISSN
    2329-4124
    DOI
    10.1117/1.JATIS.6.4.045007
    Version
    Final published version
    ae974a485f413a2113503eed53cd6c53
    10.1117/1.JATIS.6.4.045007
    Scopus Count
    Collections
    UA Faculty Publications

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