Micro-and nano-scale optical focusing for carrier management in silicon solar cell

D Su, NX Jin, Y Yang, T Zhang - Solar Energy, 2023 - Elsevier
Well-designed nanostructures enable increased light trapping, reducing the loss of single-
pass absorption and providing precise control over the microscale optical field, offering …

Characteristic parameters of photonic nanojets of single dielectric microspheres illuminated by focused broadband radiation

A Mandal, P Tiwari, PK Upputuri, VR Dantham - Scientific Reports, 2022 - nature.com
Herein, we report the theoretical investigation on the photonic nanojets (PNJs) of single
dielectric microspheres illuminated by focused broadband radiation (polychromatic light) …

[HTML][HTML] T-matrix methods for electromagnetic structured beams: A commented reference database for the period 2019–2023

G Gouesbet - Journal of Quantitative Spectroscopy and Radiative …, 2024 - Elsevier
The present paper pursues a fairly usual tradition basically devoted to reviews describing
advances in some light scattering theories in which the illuminating beam is described using …

Diverging and converging schemes of approximations to describe fundamental EM Gaussian beams beyond the paraxial approximation

G Gouesbet, J Shen, LA Ambrosio - Journal of Quantitative Spectroscopy …, 2022 - Elsevier
EM Gaussian beams are the most celebrated and used kind of laser beams. Their
description beyond paraxial regimes has a long and venerable history, culminating may be …

Photonic nanojet of a Gaussian beam illuminated low refractive index microsphere in air: A comprehensive variation of parameters

V Gašparić, D Ristić, TG Mayerhöfer, N Baran… - Journal of Quantitative …, 2022 - Elsevier
A photonic nanojet (PNJ) is a narrow beam of concentrated light emerging from the
illuminated micro-scattering objects, which has attracted a lot of attention lately. However, so …

Enhancement of Raman signal of monolayer graphene films using a single optical microsphere-assisted Raman microscopic technique

A Sharma, VR Dantham - Spectrochimica Acta Part A: Molecular and …, 2023 - Elsevier
For the first time, we report the enhancement of the Raman scattering signal of monolayer
graphene films (MGFs) on Cu foils using a single optical microsphere-assisted Raman …

Calculations of Photoinduced Heat Generation and Transfer from Fe3O4 Nanoparticles for Photothermal Therapies

S Roy, P Patar, VR Dantham - ACS Applied Nano Materials, 2025 - ACS Publications
Herein, we report a detailed theoretical investigation of the generation and transfer of heat
from single spherical-shaped solid Fe3O4 nanoparticles under optical illumination. Initially …

Role of composition and size-dependent damping due to electron-surface scattering on plasmonic properties of gold-silver alloy nanoparticles: A theoretical study

T Mahata, A Mandal, VR Dantham - Journal of Quantitative Spectroscopy …, 2021 - Elsevier
Herein, we report the theoretical simulations on the near-field enhancement factor (NEF)
and far-field scattering (FFS) properties of (i) gold-silver alloy (GSA) nanospheres,(ii) silica …

Silicon nanoparticle-based near-infrared surface enhanced fluorescence without any “dielectric spacer”

P Patar, P Joshi, VR Dantham - Journal of Luminescence, 2024 - Elsevier
For the first time, herein, we report the theoretical investigation on silicon (Si) nanoparticle-
based near-infrared (NIR) surface-enhanced fluorescence (SEF). Initially, the scattering …

Generation of long photonic nanojet by a self-assembled microdevice on optical fiber

Y Yue, X Hu, R Wang, X Qiao - Optics & Laser Technology, 2023 - Elsevier
Photonic nanojet (PNJ) is a narrowly focused and highly concentrated electromagnetic
beam that is located on the shadow side of a transparent microdevice. Here we report …