First light with ALES: A 2-5 micron adaptive optics Integral Field Spectrograph for the LBT

Andrew J. Skemer, Philip M Hinz, Manny Montoya, Michael F. Skrutskie, Jarron Leisenring, Oli Durney, Charles E. Woodward, John Wilson, Matt Nelson, Vanessa Bailey, Denis Defrere, Jordan Stone

Research output: Chapter in Book/Report/Conference proceedingConference contribution

17 Scopus citations

Abstract

Integral field spectrographs are an important technology for exoplanet imaging, due to their ability to take spectra in a high-contrast environment, and improve planet detection sensitivity through spectral differential imaging. ALES is the first integral field spectrograph capable of imaging exoplanets from 3-5 μm, and will extend our ability to characterize self-luminous exoplanets into a wavelength range where they peak in brightness. ALES is installed inside LBTI/LMIRcam on the Large Binocular Telescope, taking advantage of existing AO systems, camera optics, and a HAWAII-2RG detector. The new optics that comprise ALES are a Keplerian magnifier, a silicon lenslet array with diffraction suppressing pinholes, a direct vision prism, and calibration optics. All of these components are installed in filter wheels making ALES a completely modular design. ALES saw first light at the LBT in June 2015.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherSPIE
Volume9605
ISBN (Print)9781628417715
DOIs
Publication statusPublished - 2015
EventTechniques and Instrumentation for Detection of Exoplanets VII - San Diego, United States
Duration: Aug 10 2015Aug 13 2015

Other

OtherTechniques and Instrumentation for Detection of Exoplanets VII
CountryUnited States
CitySan Diego
Period8/10/158/13/15

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Keywords

  • Adaptive optics
  • exoplanet imaging
  • exoplanet instrumentation
  • integral field spectroscopy

ASJC Scopus subject areas

  • Applied Mathematics
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Skemer, A. J., Hinz, P. M., Montoya, M., Skrutskie, M. F., Leisenring, J., Durney, O., ... Stone, J. (2015). First light with ALES: A 2-5 micron adaptive optics Integral Field Spectrograph for the LBT. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 9605). [96051D] SPIE. https://doi.org/10.1117/12.2187284