Coherent Absorption of N00N States

Thomas Roger, Sara Restuccia, Ashley Lyons, Daniel Giovannini, Jacquiline Romero, John Jeffers, Miles J. Padgett, Daniele Franco Angelo Faccio

Research output: Contribution to journalArticlepeer-review

47 Citations (Scopus)
63 Downloads (Pure)


Recent results in deeply subwavelength thickness films demonstrate coherent control and logical gate operations with both classical and single-photon light sources. However, quantum processing and devices typically involve more than one photon and nontrivial input quantum states. Here we experimentally investigate two-photon N00N state coherent absorption in a multilayer graphene film. Depending on the N00N state input phase, it is possible to selectively choose between single- or two-photon absorption of the input state in the graphene film. These results demonstrate that coherent absorption in the quantum regime exhibits unique features, opening up applications in multiphoton spectroscopy and imaging.
Original languageEnglish
Article number023601
JournalPhysical Review Letters
Issue number2
Publication statusPublished - 8 Jul 2016


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