Nonlinear optical effects in epsilon-near-zero media

O Reshef, I De Leon, MZ Alam, RW Boyd - Nature Reviews Materials, 2019 - nature.com
Efficient nonlinear optical interactions are essential for many applications in modern
photonics. However, they typically require intense laser sources and long interaction …

Orbital-free methods for plasmonics: Linear response

F Della Sala - The Journal of chemical physics, 2022 - pubs.aip.org
Plasmonic systems, such as metal nanoparticles, are widely used in different areas of
application, going from biology to photovoltaics. The modeling of the optical response of …

[HTML][HTML] Quantum hydrodynamics for plasmas—Quo vadis?

M Bonitz, ZA Moldabekov, TS Ramazanov - Physics of Plasmas, 2019 - pubs.aip.org
Quantum plasmas are an important topic in astrophysics and high pressure laboratory
physics for more than 50 years. In addition, many condensed matter systems, including the …

Strongly coupled plasmon polaritons in gold and epsilon-near-zero bifilms

S Choudhary, S Iqbal, M Karimi, O Reshef… - ACS …, 2023 - ACS Publications
Epsilon-near-zero (ENZ) polaritons in a thin transparent conducting-oxide film exhibit a
significant electric field enhancement and localization within the film at frequencies close to …

[HTML][HTML] Study of second and third harmonic generation from an indium tin oxide nanolayer: Influence of nonlocal effects and hot electrons

L Rodriguez-Sune, M Scalora, AS Johnson… - Apl Photonics, 2020 - pubs.aip.org
We report comparative experimental and theoretical studies of the second and third
harmonic generation from a 20 nm-thick indium tin oxide layer in proximity of the epsilon …

Principles to tailor the saturable and reverse saturable absorption of epsilon-near-zero material

H Ma, Y Zhao, Y Shao, Y Lian, W Zhang, G Hu… - Photonics …, 2021 - opg.optica.org
Indium tin oxide (ITO) films have recently emerged as a new class of functional materials for
nonlinear optical (NLO) devices due to their exotic properties around epsilon-near-zero …

All-optical switching in epsilon-near-zero asymmetric directional coupler

Y Sha, ZT **e, J Wu, HY Fu, Q Li - Scientific Reports, 2022 - nature.com
We propose an all-optical switch based on an asymmetric directional coupler structure with
epsilon-near-zero (ENZ) layer. The nonlinear optical properties the of ENZ layer are …

Laplacian-level quantum hydrodynamic theory for plasmonics

HM Baghramyan, F Della Sala, C Ciracì - Physical Review X, 2021 - APS
An accurate description of the optical response of subwavelength metallic particles and
nanogap structures is a key problem of plasmonics. Quantum hydrodynamic theory (QHT) …

Optical nonlocality in polar dielectrics

CR Gubbin, S De Liberato - Physical Review X, 2020 - APS
Phonon polaritons localized in polar nanoresonators and superlattices are being actively
investigated as promising platforms for midinfrared nanophotonics. Here we show that the …

Plasmonic quantum effects on single-emitter strong coupling

C Ciracì, R Jurga, M Khalid, F Della Sala - Nanophotonics, 2019 - degruyter.com
Coupling between electromagnetic cavity fields and fluorescent molecules or quantum
emitters can be strongly enhanced by reducing the cavity mode volume. Plasmonic …