Skip to main navigation Skip to search Skip to main content

Design of NEID, an extreme precision Doppler spectrograph for WIYN

  • C. Schwab
  • , A. Rakich
  • , Q. Gong
  • , S. Mahadevan
  • , S. P. Halverson
  • , A. Roy
  • , R. C. Terrien
  • , P. M. Robertson
  • , F. R. Hearty
  • , E. I. Levi
  • , A. J. Monson
  • , J. T. Wright
  • , M. W. McElwain
  • , C. F. Bender
  • , C. H. Blake
  • , J. Stürmer
  • , Y. V. Gurevich
  • , A. Chakraborty
  • , L. W. Ramsey

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

Abstract

We have developed an optical design for a high resolution spectrograph in response to NASA's call for an extreme precision Doppler spectrometer (EPDS) for the WIYN telescope. Our instrument covers a wavelength range of 380 to 930 nm using a single detector and with a resolution of 100,000. To deliver the most stable spectrum, we avoid the use of an image slicer, in favor of a large (195 mm diameter) beam footprint on a 1x2 mosaic R4 Echelle grating. The optical design is based on a classic white pupil layout, with a single parabolic mirror that is used as the main and transfer collimator. Cross dispersion is provided by a single large PBM2Y glass prism. The refractive camera consists of only four rotationally symmetric lenses made from i-Line glasses, yet delivers very high image quality over the full spectral bandpass. We present the optical design of the main spectrograph bench and discuss the design trade-offs and expected performance.

Original languageEnglish (US)
Title of host publicationGround-Based and Airborne Instrumentation for Astronomy VI
EditorsLuc Simard, Christopher J. Evans, Hideki Takami
PublisherSPIE
ISBN (Electronic)9781510601956
DOIs
StatePublished - 2016
EventGround-Based and Airborne Instrumentation for Astronomy VI - Edinburgh, United Kingdom
Duration: Jun 26 2016Jun 30 2016

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9908
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Other

OtherGround-Based and Airborne Instrumentation for Astronomy VI
Country/TerritoryUnited Kingdom
CityEdinburgh
Period6/26/166/30/16

All Science Journal Classification (ASJC) codes

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

Fingerprint

Dive into the research topics of 'Design of NEID, an extreme precision Doppler spectrograph for WIYN'. Together they form a unique fingerprint.

Cite this