Nanophotonic manipulation of optical angular momentum for high-dimensional information optics

X Fang, H Ren, K Li, H Luan, Y Hua… - Advances in Optics …, 2021 - opg.optica.org
Light has played a crucial role in the age of information technology and has facilitated the
soaring development of information optics. The ever-increasing demand for high-capacity …

An optical needle with elongated transversal profile created using Airy beams for laser processing of glasses

P Šlevas, K Mundrys, O Ulčinas, S Orlov - Optics & Laser Technology, 2024 - Elsevier
In recent decades, significant progress has been made in the field of laser beam sha**,
driven by the growing demands in both scientific research and industrial applications …

768-ary Laguerre-Gaussian-mode shift keying free-space optical communication based on convolutional neural networks

H Luan, D Lin, K Li, W Meng, M Gu, X Fang - Optics Express, 2021 - opg.optica.org
Beyond orbital angular momentum of Laguerre-Gaussian (LG) modes, the radial index can
also be exploited as information channel in free-space optical (FSO) communication to …

Tailoring a complex perfect optical vortex array with multiple selective degrees of freedom

H Wang, S Fu, C Gao - Optics Express, 2021 - opg.optica.org
Optical vortex arrays (OVAs) have successfully aroused substantial interest from researchers
for their promising prospects ranging from classical to quantum physics. Previous reported …

[HTML][HTML] Near-field vortex beams diffraction on surface micro-defects and diffractive axicons for polarization state recognition

D Savelyev, N Kazanskiy - Sensors, 2021 - mdpi.com
The diffraction of vortex Gaussian laser beams by elementary objects of micro-optics
(surface micro-defects) to recognize the type of polarization (linear, circular, radial …

Perfect vortex in three-dimensional multifocal array

D Deng, Y Li, Y Han, X Su, J Ye, J Gao, Q Sun, S Qu - Optics express, 2016 - opg.optica.org
We proposed an approach for creating three-dimensional (3D) multifocal perfect vortices
arrays by using a high numerical aperture objective. The position, orbital angular momentum …

Protecting the edge: Ultrafast laser modified C-shaped glass edges

D Flamm, M Kaiser, M Feil, M Kahmann… - Journal of Laser …, 2022 - pubs.aip.org
A procedure and optical concept is introduced for ultrashort pulsed laser cleaving of
transparent materials with tailored edges in a single pass. The procedure is based on …

Beam sha** for ultrafast materials processing

D Flamm, DG Grossmann, M Jenne… - … , and Beam Control …, 2019 - spiedigitallibrary.org
The remarkable temporal properties of ultra-short pulsed lasers in combination with novel
beam sha** concepts enable the development of completely new material processing …

Diffractive optical elements for multiplexing structured laser beams

NL Kazanskiy, SN Khonina, SV Karpeev… - Quantum …, 2020 - iopscience.iop.org
We consider methods for obtaining a multitude of structured laser beams (multiplexing) from
an illuminating beam (both structured and unstructured) with the help of diffractive optical …

Development of 3D Microstructures for the Formation of a Set of Optical Traps on the Optical Axis

DA Savelyev, SV Karpeev - Photonics, 2023 - mdpi.com
Three-dimensional (3D) microstructures used in the formation of optical traps on the optical
axis in the near diffraction zone are calculated and studied. Subwavelength, variable-height …