[HTML][HTML] Plasmon-enhanced downshifting and downconversion: Fundamentals and applications in photovoltaics

A Joshi, IL Rasskazov - Reviews in Physics, 2024 - Elsevier
Downshifting (DS) and downconversion (DC) are processes in which a high-energy photon
is converted into one or several lower-energy photons, respectively. These processes have …

Engineering of High-Q States via Collective Mode Coupling in Chains of Mie Resonators

MS Mikhailovskii, MA Poleva, NS Solodovchenko… - ACS …, 2024 - ACS Publications
Efficient trapping of light in nanostructures is essential for the development of optical devices
based on the interaction between light and matter. In this work, we show theoretically and …

Fast simulation of light scattering and harmonic generation in axially symmetric structures in COMSOL

S Gladyshev, O Pashina, A Proskurin… - ACS …, 2024 - ACS Publications
The study of electromagnetic scattering in optics and nanophotonics is crucial for
understanding complex nanostructures and optical devices. However, numerical analysis of …

High-Q Localized States in Finite Arrays of Subwavelength Resonators

DF Kornovan, RS Savelev, Y Kivshar, MI Petrov - ACS Photonics, 2021 - ACS Publications
We uncover how to achieve giant Q-factors in finite-length periodic arrays of subwavelength
optical resonators. The underlying physics is based on interference between the band-edge …

Fluorescence enhancement of PbS colloidal quantum dots from silicon metasurfaces sustaining bound states in the continuum

L Liu, R Wang, Y Sun, Y Jin, A Wu - Nanophotonics, 2023 - degruyter.com
PbS colloidal quantum dots (CQDs) can be considered a promising lighting material, but
their emission performance is mired by defect sites, strong photo-induced activity, and …

Interaction of Ge (Si) self-assembled nanoislands with different modes of two-dimensional photonic crystal

MV Stepikhova, SA Dyakov, AV Peretokin, MV Shaleev… - Nanomaterials, 2022 - mdpi.com
The interaction of Ge (Si)/SOI self-assembled nanoislands with modes of photonic crystal
slabs (PCS) with a hexagonal lattice is studied in detail. Appropriate selection of the PCS …

Study on crystal growth of Ge/Si quantum dots at different Ge deposition by using magnetron sputtering technique

Q Shu, P Huang, F Yang, L Yang, L Chen - Scientific Reports, 2023 - nature.com
We investigated the growth and evolution of Si-based Ge quantum dots (Ge/Si QDs) under
low Ge deposition (1.2–4.4 nm thick) using magnetron sputtering. The morphology and …

Active Erbium‐Doped Silicon Nanoantenna

V Yaroshenko, M Obramenko… - Laser & Photonics …, 2023 - Wiley Online Library
The development of silicon‐based radiative nanostructures is an important step toward
silicon‐based optoelectronic systems. Here an approach for the fabrication of …

Electromagnetically induced transparency based on magnetic toroidal mode of dielectric reverse-symmetric spiral metasurfaces

T Fu, Z Zhou, D Wang, T Yang, H Li… - New Journal of …, 2022 - iopscience.iop.org
The intriguing properties of the toroidal mode (TM) resonance can potentially promote a low-
loss light–matter interaction. This study proposes an electromagnetically induced …

Quantum Dot Photoluminescence Enhancement in GaAs Nanopillar Oligomers Driven by Collective Magnetic Modes

MK Kroychuk, AS Shorokhov, DF Yagudin, MV Rakhlin… - Nanomaterials, 2023 - mdpi.com
Single photon sources based on semiconductor quantum dots are one of the most
prospective elements for optical quantum computing and cryptography. Such systems are …