GRK seminar:
Dr. David N Purschke

Strong‐fields and photons in solids, from classical to quantum light

Joint Attosecond Science Laboratory, University of Ottawa and National
Research Council of Canada

At the surface, strong‐field physics and quantum optics seem to operate in disparate regimes of light‐matter interaction. Nevertheless, the growing field of attosecond quantum optics
is beginning to bridge this gap, with the solid state providing an ideal platform of study [1]. I will discuss two experiments at this intersection: in the first, we see how a photon picture emerges from a laser‐dressed crystal using classical light [2]. In the second, we begin to study field‐driven processes with emerging non‐classical and intense sources known as brightsqueezed vacuum [3].

[1] L. Cruze‐Rodriguez et al. “Quantum phenomena in attosecond science,” Nat. Rev. Phys. 19 (2023) [2] D. N Purschke et al. “Microscopic mechanisms of highorder
wavemixing in solids,” Phys. Rev. A 108 (2023)
[3] S. Lemieux et al. “Photon bunching in high‐harmonic emission controlled by quantum light” arXiv:2404.05474

Venue: RUN 0.35