Results 41 to 50 of about 2,348 (165)

Super-Oscillating Diffractive Optical Spot Generators

Photonics
The prior discrete Fourier transform (PDFT) is applied to the design of super-oscillating diffractive optical elements with rotational symmetry. Numerical simulations of the filter response are used to demonstrate the potential of the PDFT-based approach,
Markus E. Testorf, Praneeth Gadamsetti, Paolo Batoni, Menelaos K. Poutous   +3 more
doaj   +1 more source

Multiplexed vortex beam-based optical tweezers generated with spiral phase mask

iScience, 2023
Summary: The design and implementation of a multiplexed spiral phase mask in an experimental optical tweezers setup are presented. This diffractive optical element allows the generation of multiple concentric vortex beams with independent topological ...
Francisco M. Muñoz-Pérez, Vicente Ferrando, Walter D. Furlan, Juan C. Castro-Palacio, J. Ricardo Arias-Gonzalez, Juan A. Monsoriu   +5 more
doaj   +1 more source

Extreme Refractive-, Diffractive- and Hybrid-Hyperchromats: Minimizing the Equivalent Abbe Number of a Two-Lens System

Photonics, 2023
This work provides a comprehensive analysis of the maximum chromatic axial split of two-element hyperchromats, with the distance between the two lenses being a key variable.
Lukas Werner, Erik Förster, Matthias Kraus, Hartmut Hillmer, Robert Brunner   +4 more
doaj   +1 more source

Coaxial superposition of Bessel beams by discretized spiral axicons

Journal of the European Optical Society-Rapid Publications, 2018
Background A diffractive spiral axicon can be used for the generation of a vortex beam with orbital angular momentum. The coaxial superposition of multiple vortices can generate a complex field with off-axis optical vortices.
Stephanie Supp, Jürgen Jahns
doaj   +1 more source

The Polarization Multiplexing Image with a Single Diffractive Optical Element

IEEE Photonics Journal, 2017
The diffractive optical element (DOE) can modulate the light to image in a fixed distance. However, when the wavelength of the light is single and fixed, the imaging is single. In this paper, we proposed a novel architecture to solve this problem.
Jiazhou Wang, Hui Pang, Axiu Cao, Man Zhang, Ruifeng Kan, Song Hu, Lifang Shi, Qiling Deng   +7 more
doaj   +1 more source

A Side-Absorption Concentrated Module with a Diffractive Optical Element as a Spectral-Beam-Splitter for a Hybrid-Collecting Solar System

Energies, 2020
In this paper, we propose a side-absorption concentrated module with diffractive grating as a spectral-beam-splitter to divide sunlight into visible and infrared parts.
An-Chi Wei, Wei-Jie Chang, Jyh-Rou Sze
doaj   +1 more source

Combination of Fourier transform Jones matrix and beam coherence polarization matrix: Application to a double polarizer rectangular aperture

Results in Physics
In this work, we extend the Fourier transform Jones (FTJ) matrix approach to handle input scalar fields with spatially variant transverse profiles. Additionally, we integrate the FTJ matrix with the beam coherence-polarization (BCP) matrix, suitable for ...
Ignacio Moreno, David Marco, María del Mar Sánchez-López, Juan Campos, Angel Lizana   +4 more
doaj   +1 more source

Liquid Lens Optical Design for Adjustable Laser Spot Array for the Laser-Based Three-Dimensional Reconstruction of Vocal Fold Oscillations

Optics
Standard endoscopy of vocal folds is in general limited to two-dimensional imaging. Laser-based 3D imaging offers not only absolute measurements but also the possibility of assessing all three spatial directions. However, due to human inter-individuality,
Benjamin Haas, Rose Mary, Kristian Cvecek, Clemens Roider, Michael Schmidt, Michael Döllinger, Marion Semmler   +6 more
doaj   +1 more source

High-resolution multi-z confocal microscopy with a diffractive optical element. [PDF]

Biomed Opt Express, 2023
Zhao B, Koyama M, Mertz J.
europepmc   +1 more source

Near index matching enables solid diffractive optical element fabrication via additive manufacturing. [PDF]

Light Sci Appl, 2023
Orange Kedem R, Opatovski N, Xiao D, Ferdman B, Alalouf O, Kumar Pal S, Wang Z, von der Emde H, Weber M, Sahl SJ, Ponjavic A, Arie A, Hell SW, Shechtman Y.   +13 more
europepmc   +1 more source