Dephasing of Strong-Field-Driven Floquet States Revealed by Time- and Spectrum-Resolved Quantum-Path Interferometry
arXiv:2311.10286 · doi:10.1103/PhysRevLett.133.026901
Abstract
Floquet engineering, while a powerful tool for ultrafast quantum-state manipulation, faces challenges under strong-field conditions, as recent high harmonic generation studies unveil exceptionally short dephasing times. In this study, using time- and spectrum-resolved quantum-path interferometry, we investigate the dephasing mechanisms of terahertz-driven excitons. Our results reveal a dramatic increase in exciton dephasing rate beyond a threshold field strength, indicating exciton dissociation as the primary dephasing mechanism. Importantly, we demonstrate long dephasing times of strong-field-dressed excitons, supporting coherent strong-field manipulation of quantum materials.
References in corpus (30)
- Floquet Topological Insulator in Semiconductor Quantum Wells
- Photovoltaic Hall effect in graphene
- Observation of Floquet-Bloch states on the surface of a topological insulator
- Light-induced anomalous Hall effect in graphene
- Real-time observation of interfering crystal electrons in high-harmonic generation
- Probing single-photon ionization on the attosecond time scale
- Valley-selective optical Stark effect in monolayer WS2
- Intrinsic Exciton Linewidth in Monolayer Transition Metal Dichalcogenides
- Rapid and reliable thickness identification of two-dimensional nanosheets using optical microscopy
- Ultrafast Generation of Pseudo-magnetic Field for Valley Excitons in WSe2 Monolayers
- Attosecond dynamics through a Fano resonance: Monitoring the birth of a photoelectron
- Colors Of Graphite On Silicon Dioxide
- Pseudospin-selective Floquet band engineering in black phosphorus
- Dissipative Floquet Topological Systems
- Dissociation of two-dimensional excitons in monolayer WSe2
- Interband resonant high-harmonic generation by valley polarized electron-hole pairs
- Energy-dependent photoemission delays from noble metal surfaces by attosecond interferometry
- Giant modulation of optical nonlinearity by Floquet engineering
- Tracking primary thermalization events in graphene with photoemission at extreme timescales
- On the survival of Floquet-Bloch states in the presence of scattering
- Floquet engineering of strongly-driven excitons in monolayer tungsten disulfide
- Universal Optical Control of Chiral Superconductors and Majorana Modes
- Valley-dependent Exciton Fine Structure and Autler-Townes Doublets from Berry Phases in Monolayer Molybdenum Diselenide
- Phase-locked multi-terahertz electric fields exceeding 13 MV/cm at 190 kHz repetition rate
- Dynamical symmetries of periodically-driven quantum systems and their spectroscopic signatures
- Field-induced dissociation of two-dimensional excitons in transition-metal dichalcogenides
- Sub-Cycle Optical Response Caused by Dressed State with Phase-Locked Wavefunctions
- Optical nonlinearities of excitons in monolayer MoS2
- Non-Markovian pure dephasing in a dielectric excited by a few-cycle laser pulse
- An explicit formula for high-order sideband polarization by extreme tailoring of Feynman path integrals