High-harmonic generation by a bright squeezed vacuum
Rasputnyi A, Chen Z, Birk M, Cohen O, Kaminer I, Krüger M, Seletskiy D, Chekhova M, Tani F (2024)
Publication Type: Journal article
Publication year: 2024
Journal
DOI: 10.1038/s41567-024-02659-x
Abstract
High-harmonic generation has been driving the development of attosecond science and sources. More recently, high-harmonic generation in solids has been adopted by other communities as a method to study material properties. However, so far high-harmonic generation has only been driven by classical light, despite theoretical proposals to do so with quantum states of light. Here we observe non-perturbative high-harmonic generation in solids driven by a macroscopic quantum state of light, a bright squeezed vacuum, which we generate in a single spatiotemporal mode. The process driven by a bright squeezed vacuum is considerably more efficient in the generation of high harmonics than classical light of the same mean intensity. Due to its broad photon-number distribution, covering states from 0 to 2 × 1013 photons per pulse, and strong subcycle electric field fluctuations, a bright squeezed vacuum gives access to free carrier dynamics within a much broader range of peak intensities than accessible with classical light.
Involved external institutions
Max-Planck-Institut für die Physik des Lichts (MPL) / Max Planck Institute for the Science of Light
Germany (DE)
Technion - Israel Institute of Technology
Israel (IL)
École Polytechnique de Montréal
Canada (CA)
Germany (DE)
Technion - Israel Institute of Technology
Israel (IL)
École Polytechnique de Montréal
Canada (CA)
How to cite
APA:
Rasputnyi, A., Chen, Z., Birk, M., Cohen, O., Kaminer, I., Krüger, M.,... Tani, F. (2024). High-harmonic generation by a bright squeezed vacuum. Nature Physics. https://doi.org/10.1038/s41567-024-02659-x
MLA:
Rasputnyi, Andrei, et al. "High-harmonic generation by a bright squeezed vacuum." Nature Physics (2024).
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