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Q: Fachverband Quantenoptik und Photonik

Q 40: Poster: Quantum Optics and Photonics II

Q 40.45: Poster

Mittwoch, 8. März 2017, 17:00–19:00, P OG2

Collective sensing at x-ray energies — Paolo Longo, •Dominik Lentrodt, Christoph H. Keitel, and Jörg Evers — MPI für Kernphysik, Heidelberg

We theoretically demonstrate that the cooperative emission from a layer of ⁵⁷Fe nuclei embedded in an X-ray waveguide can be used as a tool for sensing the presence of external nuclei. The internal nuclei are necessary to counteract the low Q-factor of the cavity. Our approach is based on an evanescent side-coupling mechanism and collective effects from within the waveguide [1] that realise a sufficiently high response for nuclei attached to the waveguide cladding. The results show that a shift of the emission line is only observable if deliberately excited off-resonance. The predicted collective modification of the Lamb shift and linewidth are qualitatively verified using the software package CONUSS.

[1] P. Longo, C. H. Keitel and J. Evers, Sci. Rep. 6, 23628 (2016), arXiv:1503.04532