Acousto-optical Floquet engineering of a single-photon emitter
J. Phys. Photonics 8, 012008 (2026)
Daniel Groll, Daniel Wigger, Matthias Weiß, Mingyun Yuan, Alexander Kuznetsov, Alberto Hernández-Mínguez, Hubert J. Krenner, Tilmann Kuhn, Paweł Machnikowski
We investigate theoretically the resonance fluorescence (RF) spectrum of an acoustically modulated single-photon emitter under strong optical driving. In the spectrum, the combination of Mollow triplet physics and phonon sidebands results in a complex structure of crossings, anti-crossings, and line suppressions. We apply Floquet theory to develop an analytical expression for the RF spectrum. Our feasibility study of existing emitter-based acousto-optical platforms shows that surface and bulk acoustic waves interfaced with quantum dots render a promising infrastructure to perform acousto-optical Floquet engineering.