Phase singularities and optical vortices in photonics

AP Porfirev, AA Kuchmizhak, SO Gurbatov… - Phys. Usp, 2022 - ufn.ru
Since the second half of the 20th century, ideas to develop methods for the formation of
optical vortices (OVs) or OV beams–regions of circular motion of energy flow in an …

Generation and characterization of complex vector modes with digital micromirror devices: a tutorial

XB Hu, C Rosales-Guzmán - Journal of Optics, 2022 - iopscience.iop.org
Complex vector light modes with a spatial variant polarization distribution have become
topical of late, enabling the development of novel applications in numerous research fields …

Generation of terahertz vector beams using dielectric metasurfaces via spin-decoupled phase control

Y Xu, H Zhang, Q Li, X Zhang, Q Xu, W Zhang, C Hu… - …, 2020 - degruyter.com
Cylindrical vector beams (CVBs), being a special kind of beams with spatially variant states
of polarizations, are promising in photonics applications, including high-resolution imaging …

Modeling of high-performance SPR refractive index sensor employing novel 2D materials for detection of malaria pathogens

A Panda, PD Pukhrambam - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
The present work exhibits a novel design of surface plasmon resonance (SPR) biosensor,
which comprises CaF 2 prism, TiO 2, metal (Ag/Au), PtSe 2, 2D materials …

Numerical Study to Enhance the Sensitivity of a Surface Plasmon Resonance Sensor with BlueP/WS2-Covered Al2O3-Nickel Nanofilms

Shivangani, MF Alotaibi, Y Al-Hadeethi, P Lohia… - Nanomaterials, 2022 - mdpi.com
In the traditional surface plasmon resonance sensor, the sensitivity is calculated by the
usage of angular interrogation. The proposed surface plasmon resonance (SPR) sensor …

In Situ Observation of Chemically Induced Protein Denaturation at Solvated Interfaces

PN Nirmalraj, MD Rossell, W Dachraoui… - … Applied Materials & …, 2023 - ACS Publications
Proteins unfold in chaotropic salt solutions, a process that is difficult to observe at the single
protein level. The work presented here demonstrates that a liquid-based atomic force …

Picosecond Bessel beam fabricated pure, gold-coated silver nanostructures for trace-level sensing of multiple explosives and hazardous molecules

D Banerjee, M Akkanaboina, S Ghosh, VR Soma - Materials, 2022 - mdpi.com
A zeroth-order, non-diffracting Bessel beam, generated by picosecond laser pulses (1064
nm, 10 Hz, 30 ps) through an axicon, was utilized to perform pulse energy-dependent (12 …

Longitudinal manipulation of scalar to vector vortex beams evolution empowered by all‐silicon metasurfaces

H Li, S Duan, C Zheng, J Li, H Xu… - Advanced Optical …, 2023 - Wiley Online Library
Manipulating the trend of polarization profiles in the propagation direction, especially the
evolution from homogeneous to inhomogeneous distribution, can provide subtle implements …

Ferric oxide and heterostructure BlueP/MoSe2 nanostructure based SPR sensor using magnetic material nickel for sensitivity enhancements

S Singh, AK Sharma, P Lohia, DK Dwivedi - Micro and Nanostructures, 2022 - Elsevier
In the present paper, we examine a highly sensitive surface plasmon resonance (SPR)
sensor structure based on angular interrogation. Our simulations are based on transfer …

Concise and efficient direct-view generation of arbitrary cylindrical vector beams by a vortex half-wave plate

J Qi, W Wang, B Shi, H Zhang, Y Shen, H Deng… - Photonics …, 2021 - opg.optica.org
A concise, efficient, and practical direct-view scheme is presented to generate arbitrary
cylindrical vector (CV) beams, including CV beams, vortex beams, and cylindrical vector …