Results 1 to 10 of about 2,348 (165)

Wavefront Aberration Sensor Based on a Multichannel Diffractive Optical Element [PDF]

Sensors, 2020
We propose a new type of a wavefront aberration sensor, that is, a Zernike matched multichannel diffractive optical filter, which performs consistent filtering of phase distributions corresponding to Zernike polynomials. The sensitivity of the new sensor
Svetlana N. Khonina, Sergey V. Karpeev, Alexey P. Porfirev   +2 more
doaj   +2 more sources

Binary phase-only gallium oxide diffractive optical element for beam shaping [PDF]

Scientific Reports
This study presents an experimentally validated demonstration of an inverse-optimized binary phase-only gallium oxide diffractive optical element (DOE). This DOE transforms an incident Gaussian beam into a square flat-top beam at the working plane.
Wei Jia, Steve Blair, Berardi Sensale-Rodriguez   +2 more
doaj   +2 more sources

Influence of Lithography Process Parameters on Continuous Surface Diffractive Optical Elements for Laser Beam Shaping [PDF]

Micromachines
To address the demand for laser beam-shaping techniques, we developed a one-step exposure process based on moving-mask lithography for the fabrication of a continuous-surface diffractive optical element (DOE) for laser beam shaping.
Wenjing Liu, Axiu Cao, Junbo Liu, Hui Pang, Qiling Deng, Jian Wang, Song Hu   +6 more
doaj   +2 more sources

Hexagonal diffractive optical elements

Optics Express, 2023
Diffractive optical elements (DOEs) have widespread applications in optics, ranging from point spread function engineering to holographic display. Conventionally, DOE design relies on Cartesian simulation grids, resulting in square features in the final design.
Yidan Zheng, Qiang Fu, Hadi Amata, Praneeth Chakravarthula, Felix Heide, Wolfgang Heidrich   +5 more
openaire   +3 more sources

STUDY ON HIGH RESOLUTION MEMBRANE-BASED DIFFRACTIVE OPTICAL IMAGING ON GEOSTATIONARY ORBIT [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017
Diffractive optical imaging technology provides a new way to realize high resolution earth observation on geostationary orbit. There are a lot of benefits to use the membrane-based diffractive optical element in ultra-large aperture optical imaging ...
J. Jiao, B. Wang, C. Wang, Y. Zhang, J. Jin, Z. Liu, Y. Su, N. Ruan   +7 more
doaj   +1 more source

Tunable LiNbO3-based diffractive optical element for the control of transverse modes of a laser beam

Компьютерная оптика, 2021
A diffractive optical element based on a nonlinear-optical ferroelectric single crystal has been proposed, synthesized, and experimentally characterized. The element allows fast modulation of transverse modes of a Gaussian laser beam.
A.A. Esin, A.R. Akhmatkhanov, V.S. Pavelyev, V.Y. Shur   +3 more
doaj   +1 more source

Micro-diffractive optical element arrays for beam shaping [PDF]

EPJ Web of Conferences, 2022
We describe the design of Fourier type array generators and beam shapers as periodic configurations of refractive-diffractive optical elements in microscale to provide specific beam shaping and imaging functionaliies.
Gharbi Ghebjagh Shima, Handte Thomas, Sinzinger Stefan   +2 more
doaj   +1 more source

Spectral splitting and concentration of broadband light using neural networks

APL Photonics, 2021
Compact photonic elements that control both the diffraction and interference of light offer superior performance at ultra-compact dimensions. Unlike conventional optical structures, these diffractive optical elements can provide simultaneous control of ...
Alim Yolalmaz, Emre Yüce
doaj   +1 more source

Alternative Design of Binary Phase Diffractive Optical Element with Non-π Phase Difference

Applied Sciences, 2021
It was found that binary phase diffractive optical element (DOE) with non-π phase difference had higher diffraction efficiency and adjustable zero-order intensity than a 0-π one.
Cheng Xu, Hui Pang, Axiu Cao, Qiling Deng   +3 more
doaj   +1 more source

Linearly modulated multi-focal diffractive lens for multi-sheet excitation of flow driven samples in a light-sheet fluorescence microscope

Journal of the European Optical Society-Rapid Publications, 2023
Light sheet fluorescence microscope with single light sheet illumination enables rapid 3D imaging of living cells. In this paper we show the design, fabrication and characterization of a diffractive optical element producing several light sheets along a ...
Hofmann Meike, Gharbi Ghebjagh Shima, Feng Yuchao, Fan Chao, Lemke Karen, Sinzinger Stefan   +5 more
doaj   +1 more source