SAMOP 2023 – wissenschaftliches Programm
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QI: Fachverband Quanteninformation
QI 9: Photonic Quantum Technologies (joint session Q/QI)
QI 9.2: Vortrag
Dienstag, 7. März 2023, 11:15–11:30, A320
Nonclassical states of light via high harmonic generation in semiconductors — •René Sondenheimer1, Ivan Gonoskov2, Christian Hünecke2, Daniil Kartashov3, Ulf Peschel4, and Stefanie Gräfe1,2 — 1Fraunhofer Institute for Applied Optics and Precision Engineering, Albert-Einstein-Strasse 7, 07745 Jena, Germany — 2Institute of Physical Chemistry, Friedrich Schiller University Jena, Helmholtzweg 4, 07743 Jena, Germany — 3Institute of Optics and Quantum Electronics, Friedrich Schiller University Jena, Max-Wien-Platz 1, 07743 Jena, Germany — 4Institute of Solid State Theory and Optics, Friedrich Schiller University Jena, Max-Wien-Platz 1, 07743 Jena, Germany
I will discuss the generation of higher-order harmonics from a quantum optics perspective via the interaction of a semiconductor with a coherent pump field focusing on the regime where strong-field intraband excitations dominate. While the fundamental mode undergoes intricate but sufficiently mild modifications due to nonlinear interactions, the harmonic modes can be described by coherent displacements depending on the position quadrature component of the driving laser field within our approximations. Similar to high-harmonic generation in atoms, all radiation field modes are entangled, allowing for potential novel protocols for quantum information processing with high photon numbers over a large range of frequencies.