Frequency comb polarization spectroscopy of multilevel rubidium atoms Nataša VVujičić, Gordana Kregar, Ticijana Ban, Damir Aumiler and Goran Pichler Eur. Phys. J. D, 68 1 (2014) 9 Published online: 23 January 2014 DOI: 10.1140/epjd/e2013-40577-3