3D-M3: high-spatial-resolution spectroscopy with extreme AO and 3D-printed micro-lenslets
Abstract
By combining IFS with ExAO we are now able to resolve objects close to the diffraction-limit of large telescopes, exploring new science cases. We introduce an IFU designed to couple light with a minimal platescale from the SCExAO facility at NIR wavelengths to a SM spectrograph. The IFU has a 3D-printed MLA on top of a custom SM MCF, to optimize the coupling of light into the fiber cores. We demonstrate the potential of the instrument via initial results from the first on-sky runs at the 8.2 m Subaru Telescope with a spectrograph using off-the-shelf optics, allowing for rapid development with low cost.
- Publication:
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Applied Optics
- Pub Date:
- July 2021
- DOI:
- 10.1364/AO.420855
- arXiv:
- arXiv:2105.05538
- Bibcode:
- 2021ApOpt..60D.108A
- Keywords:
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- Astrophysics - Instrumentation and Methods for Astrophysics
- E-Print:
- doi:10.1364/AO.420855