Berlin 2014 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 30: Poster: Photonics, laser development and applications, ultrashort laser pulses, quantum effects

Q 30.82: Poster

Dienstag, 18. März 2014, 16:30–18:30, Spree-Palais

Field control of single x-ray photons in nuclear forward scattering — •xiangjin kong, wen-te liao, and adriana pálffy — Max-Planck-Institut für Kernphysik, Heidelberg, Germany

Recent experimental developments of coherent light sources such as the X-ray Free Electron Laser (XFEL) have opened the x-ray parameter regime for fascinating coherent control concepts originally developed in quantum optics. Thus, new fields such as x-ray quantum optics [1] and even nuclear quantum optics emerge as nuclei with low-lying collective states can be resonantly addressed with x-ray light.

Here, the field control of single x-ray photons in nuclear forward scattering, i.e., in the resonant coherent scattering of light off nuclei, is investigated theoretically [2]. First, the simultaneous coherent propagation of two pulses through a nuclear sample is addressed. We find that the signal of a weak pulse can be enhanced or suppressed by a stronger pulse simultaneously propagating through the sample in counter-propagating geometry. Second, the effect of a time-dependent hyperfine splitting is investigated and we put forward a scheme that allows parts of the spectrum to be shifted forward in time. This may become a valuable technique if single x-ray photon wavepackets are to become the information carriers in future photonic circuits.

[1] B. W. Adams et al., J. Mod. Opt. 60, 2 (2013).

[2] X. Kong, W.-T. Liao and A. Pálffy, arXiv:1310.6235v1 (2013).

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