Modern types of axicons: New functions and applications

SN Khonina, NL Kazanskiy, PA Khorin, MA Butt - Sensors, 2021 - mdpi.com
Axicon is a versatile optical element for forming a zero-order Bessel beam, including high-
power laser radiation schemes. Nevertheless, it has drawbacks such as the produced …

Advancing broadband light structuring through single-size nanostructured all-dielectric meta-devices

M Waheed, N Mahmood, MD Shafqat, M Zubair… - Materials Today …, 2023 - Elsevier
Traditional optical components and most artificially engineered structures (metamaterials)
used for light manipulation are usually designed for narrow bandwidth and limited …

Twisted non-diffracting beams through all dielectric meta-axicons

N Mahmood, H Jeong, I Kim, MQ Mehmood, M Zubair… - Nanoscale, 2019 - pubs.rsc.org
We demonstrate transmission-based all-dielectric, highly efficient (≈ 73.4%) and
polarization-insensitive meta-axicons (for the visible wavelength of 633 nm) to generate zero …

[HTML][HTML] Ultrafast Laser Processing for High-Aspect-Ratio Structures

M Qin, X Zhao, H Fan, R Leng, Y Yu, A Li, B Gao - Nanomaterials, 2024 - mdpi.com
Over the past few decades, remarkable breakthroughs and progress have been achieved in
ultrafast laser processing technology. Notably, the remarkable high-aspect-ratio processing …

[HTML][HTML] Hierarchical concentric surface patterns and metasurfaces on azobenzene molecular glass films using axicon interference lithography

M Mazloumi, E Dawson, RG Sabat - Optical Materials, 2023 - Elsevier
Bessel laser beams generated by an axicon lens were used for the fabrication of
hierarchical concentric surface patterns onto azobenzene molecular glass thin films. The …

Planar binary-phase lens for super-oscillatory optical hollow needles

G Chen, Z Wu, A Yu, K Zhang, J Wu, L Dai, Z Wen… - Scientific Reports, 2017 - nature.com
Optical hollow beams are suitable for materials processing, optical micromanipulation,
microscopy, and optical lithography. However, conventional optical hollow beams are …

All-optical patterning in azobenzene polymers and amorphous chalcogenides

VM Kryshenik, YM Azhniuk, VS Kovtunenko - Journal of Non-Crystalline …, 2019 - Elsevier
A review of recent progress in optical recording of surface relief structures in the films of two
classes of photoresponsive non-crystalline materials (azobenzene-containing polymers and …

Optically generated droplet beams improve optoacoustic imaging of choroid thickness as an Alzheimer's disease biomarker

KG Mavrakis, G Divaris, M Tampakaki, SN Khan… - npj …, 2024 - nature.com
Optoacoustic microscopy faces a restricted depth of field attributed to the tightly focused
Gaussian beam excitation. This limitation poses challenges in capturing high-resolution …

Focusing properties of spirally polarized sinh Gaussian beam

M Senthilkumar, KB Rajesh, M Udhayakumar… - Optics & Laser …, 2019 - Elsevier
The tight focusing properties of spirally polarized sinh-Gaussian beam is investigated
numerically by vector diffraction theory. Results show that the optical intensity in focal region …

Hybrid application of laser-focused atomic deposition and extreme ultraviolet interference lithography methods for manufacturing of self-traceable nanogratings

J Liu, J Zhao, X Deng, S Yang, C Xue, Y Wu… - …, 2021 - iopscience.iop.org
A novel hybrid method that combines the laser-focused atomic deposition (LFAD) and
extreme ultraviolet (EUV) interference lithography has been introduced. The Cr grating …