Results 31 to 40 of about 6,226,339 (282)

Measurement and correction of two-sided freeform optical elements with combined tactile-optical metrology equipment [PDF]

open access: yesEPJ Web of Conferences, 2019
Freeform optical elements are state of the art for several years to fabricate very high performance optical systems with the necessity of, e.g., strong folding in mirror system or correction of typical asymmetric aberrations in mirror systems as well as ...
Hartung Johannes   +5 more
doaj   +1 more source

Tapered multicore fibers for energy-scalable fiber laser systems [PDF]

open access: yesEPJ Web of Conferences, 2022
With active multicore fibers (MCFs), many parallel amplifying waveguides can be densely assembled into a common glass cladding. A tapered fiber geometry applied to MCFs enhances the power and energy scalability of these systems by increasing the doped ...
Aleshire Christopher   +10 more
doaj   +1 more source

Spin flip statistics and spin wave interference patterns in Ising ferromagnetic films: A Monte Carlo study

open access: yesHeliyon, 2017
The spin wave interference is studied in two dimensional Ising ferromagnet driven by two coherent spherical magnetic field waves by Monte Carlo simulation.
Muktish Acharyya
doaj   +1 more source

Multifunctional contamination-resistant coatings [PDF]

open access: yesEPJ Web of Conferences, 2019
Surface contaminations can critically affect the performance of optical surfaces, in particular with respect to light scattering, optical losses, and laser stability.
Felde Nadja   +3 more
doaj   +1 more source

Nonlinear Optics

open access: yesFrontiers in Photonics, 2021
Nonlinear science, i.e., the study of systems capable of generating new frequencies, is ubiquitous and fascinating; as opposed to linear science, where we often have well known tools to tackle a specific problem, when nonlinearity comes into play, and ...
Costantino De Angelis
semanticscholar   +1 more source

Analysis of influence on the solar simulator light source off-focus to the spot

open access: yesJournal of Hebei University of Science and Technology, 2015
Aiming at focusing-type solar simulator, the paper researches the relationship between the defocusing amount and the facula irradiance. With the optical system of focusing-type solar simulator as research object, simulation is conducted based on a short ...
Jiayu ZHANG   +3 more
doaj   +1 more source

Optical path difference evaluation of laser-soldered optical components [PDF]

open access: yesJournal of the European Optical Society-Rapid Publications, 2015
We present Solderjet Bumping, a laser-based soldering process, as an all inorganic joining technique for optical materials and mechanical support structures.
Burkhardt T.   +3 more
doaj   +1 more source

Optical Design and Investigation of a Dual-Interference Channels and Bispectrum Static Fourier-Transform Imaging Spectrometer Based on Stepped Micro-Mirror

open access: yesIEEE Access, 2021
We demonstrate a novel tempo-spatial mixed-modulation Fourier-transform infrared imaging spectrometer. The static interference channel based on a stepped micro-mirror contributes a compact system with high stability.
Jun Ren   +7 more
doaj   +1 more source

Experience with Artificial Neural Networks Applied in Multi-object Adaptive Optics

open access: yesPublications of the Astronomical Society of the Pacific, 2019
The use of artificial Intelligence techniques has become widespread in many fields of science, due to their ability to learn from real data and adjust to complex models with ease.
S. L. Suárez Gómez   +10 more
semanticscholar   +1 more source

First-principles experimental demonstration of ferroelectricity in a thermotropic nematic liquid crystal: Polar domains and striking electro-optics

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2020
Significance Conspicuously in the background in the history of liquid crystals is the ferroelectric nematic (NF) phase. Predicted by Debye and Born 100 y ago and since revisited extensively, in systems ranging from colloidal suspensions of rods or discs ...
Xiangshan Chen   +10 more
semanticscholar   +1 more source

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