A proposed laser frequency comb-based wavelength reference for high-resolution spectroscopy

Steve Osterman; Scott Diddams; Matthew Beasly; Cynthia Froning; Leo Hollberg; Phillip MacQueen; Vela Mbele; Andrew Weiner

doi:10.1117/12.734193

4 October 2007 A proposed laser frequency comb-based wavelength reference for high-resolution spectroscopy

Steve Osterman, Scott Diddams, Matthew Beasly, Cynthia Froning, Leo Hollberg, Phillip MacQueen, Vela Mbele, Andrew Weiner

Author Affiliations +

Proceedings Volume 6693, Techniques and Instrumentation for Detection of Exoplanets III; 66931G (2007) https://doi.org/10.1117/12.734193
Event: Optical Engineering + Applications, 2007, San Diego, California, United States

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.

Citation Download Citation

Steve Osterman, Scott Diddams, Matthew Beasly, Cynthia Froning, Leo Hollberg, Phillip MacQueen, Vela Mbele, and Andrew Weiner "A proposed laser frequency comb-based wavelength reference for high-resolution spectroscopy", Proc. SPIE 6693, Techniques and Instrumentation for Detection of Exoplanets III, 66931G (4 October 2007); https://doi.org/10.1117/12.734193

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