Results 1 to 10 of about 2,436 (160)

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   +3 more sources

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

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   +3 more sources

Cantilever-Based Sensor Utilizing a Diffractive Optical Element with High Sensitivity to Relative Humidity. [PDF]

Sensors (Basel), 2021
Grogan C, McGovern FR, Staines R, Amarandei G, Naydenova I.   +4 more
europepmc   +2 more sources

Research on the design of an optical information storage sensing system using a diffractive optical element. [PDF]

Sensors (Basel), 2013
Cheng X, Hao Q, Hou J, Li X, Ma J, Gu M.
europepmc   +2 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

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