Highly sensitive label-free biosensor: graphene/CaF2 multilayer for gas, cancer, virus, and diabetes detection with enhanced quality factor and figure of merit

B Jafari, E Gholizadeh, B Jafari, M Zhoulideh… - Scientific Reports, 2023 - nature.com
One of the primary goals for the researchers is to create a high-quality sensor with a simple
structure because of the urgent requirement to identify biomolecules at low concentrations to …

Graphene-based optofluidic tweezers for refractive-index and size-based nanoparticle sorting, manipulation, and detection

E Gholizadeh, B Jafari, S Golmohammadi - Scientific Reports, 2023 - nature.com
This work proposes a novel design composed of graphene nanoribbons-based optofluidic
tweezers to manipulate and sort bio-particles with radii below 2.5 nm. The suggested …

Tunable and ultrasensitive sensor covering terahertz to telecommunication range based on a Fabry–Perot interference of graphene plasmonic waves

H Moradi, M Zhoulideh, M Ghafariasl - Optics Communications, 2023 - Elsevier
We present an ultrasensitive tunable terahertz (THz) sensor that comprises monolayer
graphene-based gratings integrated with a Fabry-Perot (FP) cavity through precisely …

Design of a high-sensitivity graphene-silicon hybrid micro-disk in a square cavity whispering gallery mode biosensor

F Aghaei, S Golmohammadi, H Bahador… - Journal of Nanoparticle …, 2023 - Springer
Whispering gallery mode (WGM)–based sensors offer high sensitivity, good linearity, and
wide measurement range and hence are promising for the field of biosensors. In this paper …

High sensitivity metal-insulator-metal sensor based on ring-hexagonal resonator with a couple of square cavities connected

F Aghaei, H Bahador - Physica Scripta, 2022 - iopscience.iop.org
The necessity for cheaper and more efficient sensors has been the main motivation for the
use of Metal-Insulator-Metal (MIM) sensors. In this paper, a micro-dimensional refractive …

Active graphene plasmonic tweezers: Size based nanoparticle trap** and sorting

B Jafari, E Gholizadeh… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
In this article, a novel graphene based Optical tweezer (OT) and size based particle sorter is
proposed and numerically investigated by finite difference time domain (FDTD) method and …

graphene integrated in a ring type fabry-perot cavity: Polarization insensitive, low voltage and tunable modulation of light at near-IR telecommunications band

B Jafari, H Soofi - IEEE Transactions on Nanotechnology, 2021 - ieeexplore.ieee.org
In this article, a novel graphene based resonant free space modulator for modulating optical
signals in the wavelength range of 1-2 μm is designed and numerically investigated. The …

Multifunctional graphene-based optoelectronic structure based on a Fabry–Perot cavity enhanced by a metallic nanoantenna

B Jafari, E Gholizadeh - Applied Optics, 2022 - opg.optica.org
Optical communications systems are continuously miniaturized to integrate several
previously separate optoelectronic devices, organized with silicon-based incorporated …

THz plasmonic metasurface based on a periodic array of InSb metamolecules with narrow resonances

S Aghili, A Amini, LS Dizaj, K Dolgaleva - Optics Communications, 2022 - Elsevier
We propose an indium antimonide (InSb) THz plasmonic metasurface featuring a surface
lattice resonance (SLR) with the quality factor of Q∼ 375 and theoretically investigate the …