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Proceedings Paper

A proposed laser frequency comb-based wavelength reference for high-resolution spectroscopy
Author(s): Steve Osterman; Scott Diddams; Matthew Beasly; Cynthia Froning; Leo Hollberg; Phillip MacQueen; Vela Mbele; Andrew Weiner
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Paper Abstract

High resolution spectroscopy is the foundation for many of the most challenging and productive of all astronomical observations. A highly precise, repeatable and stable wavelength calibration is especially essential for long term RV observations. The two wavelength references in wide use for visible wavelengths, iodine absorption cells and thorium/argon lamps, each have fundamental limitations which restrict their ultimate utility. We are exploring the possibility of adapting emerging laser frequency comb technology in development at the National Institute of Standards and Technology in Boulder, Colorado, to the needs of high resolution, high stability astronomical spectroscopy. This technology has the potential to extend the two current wavelength standards both in terms of spectral coverage and in terms of long term precision, ultimately enabling better than 10 cm/s astronomical radial velocity determination.

Paper Details

Date Published: 4 October 2007
PDF: 9 pages
Proc. SPIE 6693, Techniques and Instrumentation for Detection of Exoplanets III, 66931G (4 October 2007); doi: 10.1117/12.734193
Show Author Affiliations
Steve Osterman, Univ. of Colorado at Boulder (United States)
Scott Diddams, National Institute of Standards and Technology (United States)
Matthew Beasly, Univ. of Colorado at Boulder (United States)
Cynthia Froning, Univ. of Colorado at Boulder (United States)
Leo Hollberg, National Institute of Standards and Technology (United States)
Phillip MacQueen, The Univ. of Texas at Austin (United States)
Vela Mbele, National Institute of Standards and Technology (United States)
Andrew Weiner, Purdue Univ. (United States)


Published in SPIE Proceedings Vol. 6693:
Techniques and Instrumentation for Detection of Exoplanets III
Daniel R. Coulter, Editor(s)

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