Strong-field nano-optics

P Dombi, Z Pápa, J Vogelsang, SV Yalunin, M Sivis… - Reviews of Modern …, 2020 - APS
The present status and development of strong-field nano-optics, an emerging field of
nonlinear optics, is discussed. A nonperturbative regime of light-matter interactions is …

Two-color-driven enhanced high-order harmonic generation in solids

F Navarrete, U Thumm - Physical Review A, 2020 - APS
We theoretically investigate the emission of high-harmonic (HH) radiation in model crystals
by bichromatic few-cycle driving pulses that are composed as the phase-coherent …

Crystal-momentum-resolved contributions to high-order harmonic generation in solids

F Navarrete, MF Ciappina, U Thumm - Physical Review A, 2019 - APS
We analytically and numerically investigate the emission of high-order harmonic radiation
from model solids by intense few-cycle midinfrared laser pulses. In single-active-electron …

Strong-field ionization of plasmonic nanoparticles

E Saydanzad, J Li, U Thumm - Physical Review A, 2022 - APS
We modeled strong-field ionization of metal nanoparticles by intense infrared laser pulses,
accounting for and distinguishing in photoelectron (PE) momentum distributions the effects …

Plasmon-induced double-field-enhanced upconversion nanoprobes with near-infrared resonances for high-sensitivity optical bio-imaging

J Yin, H Zheng, A Li, J Zhang, L Tian, F Zhao… - …, 2021 - iopscience.iop.org
High-sensitivity optical imaging can be achieved through improving upconversion
photoluminescence (UCPL) efficiency of localized surface plasmon resonance (LSPR) …

Imaging plasmonic fields with atomic spatiotemporal resolution

J Li, E Saydanzad, U Thumm - Physical Review Letters, 2018 - APS
We propose a scheme for the reconstruction of plasmonic near fields at isolated
nanoparticles from infrared-streaked extreme-ultraviolet photoemission spectra. Based on …

Strong-field control of plasmonic properties in core–shell nanoparticles

JA Powell, J Li, A Summers, SJ Robatjazi… - ACS …, 2022 - ACS Publications
Utilization of the plasmonic response in nanosystems is a key component of nanophotonics
that is typically altered by varying the incident optical frequency or the material configuration …

Theoretical study on the correlation quantum dynamics between the photo-emitted electron and N2+ molecule

J Hu, Y Li, K Liu - The European Physical Journal Plus, 2024 - Springer
In this paper, a full-core (nuclei with bound electrons) plus correlation (multi-electron
interactions) time-dependent wave packet quantum dynamics method is proposed to …

Characterization of induced nanoplasmonic fields in time-resolved photoemission: A classical trajectory approach applied to gold nanospheres

E Saydanzad, J Li, U Thumm - Physical Review A, 2017 - APS
Attosecond time-resolved spectroscopy has been shown to be a powerful method for
examining the electronic dynamics in atoms, and this technique is now being transferred to …

Spatiotemporal imaging of plasmonic fields near nanoparticles below the diffraction limit

E Saydanzad, J Li, U Thumm - Physical Review A, 2018 - APS
Optically induced collective conduction-electron oscillations can generate intense plasmonic
fields near metallic nanoparticles. We suggest a method for reconstructing such …