Plasmon-induced hot carrier dynamics and utilization

J Luo, Q Wu, L Zhou, W Lu, W Yang… - Photonics Insights, 2023 - spiedigitallibrary.org
Plasmonics has aroused tremendous interest in photophysics, nanophotonics, and
metamaterials. The extreme field concentration of plasmonics offers the ultimate spatial and …

Real-time ellipsometry at high and low temperatures

D Mukherjee, P Petrik - ACS omega, 2023 - ACS Publications
Among the many available real-time characterization methods, ellipsometry stands out with
the combination of high sensitivity and high speed as well as nondestructive, spectroscopic …

[HTML][HTML] Tunable ultrafast thermionic emission from femtosecond-laser hot spot on a metal surface by control of laser polarization and angle of incidence: A numerical …

MU Kahaly, S Madas, B Mesits, S Kahaly - Applied Surface Science, 2024 - Elsevier
Ultrafast laser induced thermionic emission from metal surfaces has several applications.
Here, we investigate the role of laser polarization and angle of incidence on the ultrafast …

Excitation and relaxation of nonthermal electron energy distributions in metals with application to gold

DM Riffe, RB Wilson - Physical Review B, 2023 - APS
A semiempirical theory for the excitation and subsequent relaxation of nonthermal electrons
is described. The theory, which is applicable to ultrafast-laser excited metals, is based on the …

Non-thermal emission in gap-mode plasmon photoluminescence

R Lemasters, M Manjare, R Freeman, F Wang… - Nature …, 2024 - nature.com
Photoluminescence from spatially inhomogeneous plasmonic nanostructures exhibits
fascinating wavelength-dependent nonlinear behaviors due to the intraband recombination …

Ultrafast Surface Plasmon Probing of Interband and Intraband Hot Electron Excitations

P Sándor, B Lovász, J Budai, Z Pápa, P Dombi - Nano Letters, 2024 - ACS Publications
Upon the interaction of light with metals, nonthermal electrons are generated with intriguing
transient behavior. Here, we present femtosecond hot electron probing in a noveloptical …

Nanoplasmonic Photoelectron Rescattering in the Multiphoton-Induced Emission Regime

B Bánhegyi, GZ Kiss, Z Pápa, P Sándor, L Tóth… - Physical Review Letters, 2024 - APS
In strong-field laser-matter interactions, energetic electrons can be created by
photoemission and a subsequent rescattering and can attain energy as much as 10 times …

Quantitative Complex Refractive Index Changes in Thin Films: A Pump–Probe Spectroscopy Analysis Approach

Y Chen, K Yu, Y Yan, GP Wang - The Journal of Physical …, 2024 - ACS Publications
Photoexcitation induces intricate changes in both the real and imaginary components of the
complex refractive index of thin film materials, which is essential for interpreting transient …

Controlling Plasmonic Field Enhancement via the Interference of Orthogonal Plasmonic Modes

B Bánhegyi, L Tóth, P Dombi, J Budai, V Hanus… - Plasmonics, 2024 - Springer
Optical nanoantennas concentrate light into their local fields. The field concentration
property is governed by the plasmonic resonances and their interference. Here, we present …

Ballistic vs. diffusive transport in metals

Y Sivan, IW Un, S Sarkar - arXiv preprint arXiv:2402.15226, 2024 - arxiv.org
Using the Boltzmann transport model, we show that, somewhat unintuitively, ballistic
transport of electrons in metals is weaker than diffusive transport. This happens because the …