Abstract
Interaction-free measurements can indicate the presence of photo-sensitive objects and even image the objects without damaging them. Can they also be used to indicatethe presence of a single photon without absorbing it? We address this question in the context of improving the efficiency of single-photon sources. In particular, we interpret a recently proposed method to announce single photons based on two-photon absorption [Konrad et al., Phys. Rev. A 73, 032327 (2006)] in terms of "interaction-free" measurements.
Original language | English |
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Pages (from-to) | 93-99 |
Number of pages | 7 |
Journal | European Physical Journal: Special Topics |
Volume | 159 |
Issue number | 1 |
DOIs | |
Publication status | Published - Jun 2008 |
Externally published | Yes |