Polarization-sensitive photonic bandgaps in hybrid one-dimensional photonic crystals composed of all-dielectric elliptical metamaterials and isotropic dielectrics

F Wu, T Liu, S Xiao - Applied Optics, 2023 - opg.optica.org
Photonic bandgaps (PBGs) in conventional one-dimensional (1-D) photonic crystals (PhCs)
composed of isotropic dielectrics are polarization-insensitive since the optical length within a …

Nanostructured materials for circular dichroism and chirality at the nanoscale: towards unconventional characterization

E Petronijevic, A Belardini, G Leahu, R Li Voti… - Optical Materials …, 2022 - opg.optica.org
In this work, we review the last attempts to use nanostructured materials for the
enhancement of the chiro-optical effects at the nanoscale. Starting from the numerical …

Diffracted beams from metasurfaces: high chiral detectivity by photothermal deflection technique

G Leahu, E Petronijevic, R Li Voti… - Advanced Optical …, 2021 - Wiley Online Library
Measurements of difference in optical interactions between circularly polarized excitations of
opposite handedness (circular dichroism) are highly important for both natural and artificial …

Circular dichroism in a plasmonic array of elliptical nanoholes with square lattice

H Ali, E Petronijevic, G Pellegrini, C Sibilia… - Optics …, 2023 - opg.optica.org
Chiral properties of plasmonic metasurfaces, especially related to different absorption of left
and right circularly polarized light leading to circular dichroism (CD), are a research hot topic …

Rich near-infrared chiral behavior in diffractive metasurfaces

E Petronijevic, A Belardini, T Cesca, C Scian… - Physical Review …, 2021 - APS
The mimicking of chiral effects at the nanoscale usually requires complex nanostructured
systems fabricated by using highly sophisticated techniques. Here, we demonstrate that low …

Extrinsic Chirality and Circular Dichroism at Visible Frequencies Enabled by Birefringent α-MoO3 Nanoscale-Thick Films: Implications for Chiro-Optical Control

E Petronijevic, SA Dereshgi… - ACS Applied Nano …, 2022 - ACS Publications
Nanophotonics community has shown great interest in 2D materials because of their unique
properties of electromagnetic field manipulation. Many of these materials exhibit strong …

Label-free biosensing using hybrid plasmonic substrates generated via nanosphere lithography

E Lulek, AE Cetin, YN Ertas - ACS Applied Nano Materials, 2024 - ACS Publications
The rapid advancement of air/water interface coatings transcends multiple domains. These
coatings, valued for expansive coverage, facile acquisition, and economic efficiency, hold …

Opposite Polarity Surface Photovoltage of MoS2 Monolayers on Au Nanodot versus Nanohole Arrays

J Song, S Kwon, B Kim, E Kim… - … Applied Materials & …, 2020 - ACS Publications
We prepared MoS2 monolayers on Au nanodot (ND) and nanohole (NH) arrays. Both these
sample arrays exhibited enhanced photoluminescence intensity compared with that of a …

Circular dichroism induced by the coupling between surface plasmon polaritons and localized surface plasmon resonances in a double-layer complementary …

Y Bai, Y Li, M Ikram, Y Ren, Y Xu, Y Wang… - The Journal of …, 2022 - ACS Publications
Circular dichroism (CD) spectroscopy is an important technique for detecting and identifying
chiral molecules in the fields of chemistry, biology, and other life sciences. Artificial …

Characterization of chirality in diffractive metasurfaces by photothermal deflection technique

R Li Voti, G Leahu, E Petronijevic, A Belardini… - Applied Sciences, 2022 - mdpi.com
Featured Application Photothermal characterization of chiro-optical phenomena in
metasurfaces. Abstract Chirality, a lack of mirror symmetry, is present in nature at all scales; …