The influence of density of modes on dark lines in spontaneous emissionThe influence of density of modes on dark lines in spontaneous emission Peer-Reviewed Journal Publication Δημοσίευση σε Περιοδικό με Κριτές 2015-10-221999enWe study two distinct multi-level atomic models in which one transition is coupled to a Markovian reservoir, while another linked transition is coupled to a non-Markovian reservoir. We show that by choosing appropriately the density of modes of the non-Markovian reservoir the spontaneous emission to the Markovian reservoir is greatly altered. The existence of ‘dark lines’ in the spontaneous emission spectrum in the Markovian reservoir due to the coupling to specific density of modes of the non-Markovian reservoir is also predicted.http://creativecommons.org/licenses/by/4.0/Optics Communications1721-6229–240 Aggelakis Dimitrios Αγγελακης Δημητριος Paspalakis, Emmanuel Knight Peter L. Elsevier Spontaneous emission