Resonant interaction of a single atom with single photons from a down-conversion source
Carsten Schuck, Felix Rohde, Nicolás Piro, Marc Almendros, Jan Huwer, Morgan W. Mitchell, Markus Hennrich, Albrecht Haase, François Dubin, Jürgen Eschner · Physical Review A · 2010
We observe the interaction of a single trapped calcium ion with single photons produced by a narrow-band, resonant down-conversion source [A. Haase et al., Opt. Lett. 34, 55 (2009)], employing a quantum jump scheme. Using the temperature dependence of the down-conversion spectrum and the tunability of the narrow source, absorption of the down-conversion photons is quantitatively characterized.