@inproceedings{7967df2e75dd4c4bbbf5417625d505a5,
title = "Rubidium transitions as wavelength reference for astronomical Doppler spectrographs",
abstract = "Precise wavelength calibration is a critical issue for high-resolution spectroscopic observations. The ideal calibration source should be able to provide a very stable and dense grid of evenly distributed spectral lines of constant intensity. A new method which satisfies all mentioned conditions has been developed by our group. The approach is to actively measure the exact position of a single spectral line of a Fabry-Perot etalon with very high precision with a wavelength-tuneable laser and compare it to an extremely stable wavelength standard. The ideal choice of standard is the D2 absorption line of Rubidium, which has been used as an optical frequency standard for decades. With this technique, the problem of stable wavelength calibration of spectrographs becomes a problem of how reliably we can measure and anchor one etalon line to the Rb transition. In this work we present our self-built module for Rb saturated absorption spectroscopy and discuss its stability.",
keywords = "Doppler spectroscopy, Fabry-Perot etalon, Hyperfine transition, Rubidium, Saturated absorption spectroscopy, Wavelength calibration",
author = "D. Rogozin and T. Feger and C. Schwab and Gurevich, {Y. V.} and G. Raskin and Coutts, {D. W.} and J. Stuermer and A. Seifahrt and T. Fuehrer and T. Legero and {Van Winckel}, H. and S. Halverson and A. Quirrenbach",
year = "2020",
month = jan,
day = "3",
doi = "10.1117/12.2541317",
language = "English",
isbn = "9781510631465",
series = "Proceedings of SPIE",
publisher = "SPIE",
pages = "1--2",
editor = "Simon Ellis and C{\'e}line d'Orgeville",
booktitle = "Advances in Optical Astronomical Instrumentation 2019",
address = "United States",
note = "Advances in Optical Astronomical Instrumentation 2019 ; Conference date: 09-12-2019 Through 12-12-2019",
}