Results 21 to 30 of about 942,030 (275)

Simulations for the Locking and Alignment Strategy of the DRMI Configuration of the Advanced Virgo Plus Detector

open access: yesGalaxies, 2022
The Advanced Virgo Plus project aims to increase the sensitivity of the Virgo gravitational-wave detector, given the forthcoming O4 Observing Run. One of the major upgrades is the addition of the Signal Recycling Mirror in the optical layout.
Diego Bersanetti   +6 more
doaj   +1 more source

Polarization singularities from unfolding an optical vortex through a birefringent crystal [PDF]

open access: yes, 2005
Optical vortices (nodal lines and phase singularities) are the generic singularities of scalar optics but are unstable in vector optics. We investigate experimentally and theoretically the unfolding of a uniformly polarized optical vortex beam on ...
Dennis, Mark R.   +3 more
core   +4 more sources

Improving Early Optics Instruction Using a Phenomenological Approach: A Field Study

open access: yesOptics, 2022
Previous research has shown that phenomenological approaches in early optics education might be superior to traditional model-based instruction based on the light ray realm with regards to fostering students’ conceptual understanding of basic optics ...
Kai Fliegauf   +4 more
doaj   +1 more source

Recording a Hologram Transmitted over a Communication Channel on One Sideband

open access: yesApplied Sciences, 2021
The paper presents experimental results on the recording and restoration of 3D holographic frames suitable for transmitting 3D holographic images with the frame rate required for TV images and a resolution of the Full HD standard and higher.
Sergey A. Shoydin   +4 more
doaj   +1 more source

Optical near-fields & nearfield optics

open access: yesBeilstein Journal of Nanotechnology, 2014
Optical methods provide exceedingly powerful tools in science and technology for measuring, analyzing and manipulating, from optical microscopy and spectroscopy to the characterization of ultrafast processes by femtosecond pulses and the modification of materials by intense laser radiation. However, when it comes to applications in the nanometer-regime,
Meixner, Alfred J., Leiderer, Paul
openaire   +4 more sources

Optical-approximation analysis of sidewall-spacing effects on the force between two squares with parallel sidewalls [PDF]

open access: yes, 2007
Using the ray-optics approximation, we analyze the Casimir force in a two dimensional domain formed by two metallic blocks adjacent to parallel metallic sidewalls, which are separated from the blocks by a finite distance h.
Jaffe, Robert L.   +3 more
core   +1 more source

Electronic structure and excited-state properties of Co2TiSn and Co2ZrSn from ab initio calculations

open access: yesCondensed Matter Physics, 2005
The electronic structure, magnetism as well as the excited-state properties such as the optical and x-ray magnetic circular dichroism (XMCD) spectra of the Heusler alloys Co2TiSn and Co2ZrSn were investigated theoretically from first principles using the
L.V.Bekenov   +3 more
doaj   +1 more source

Electron quantum optics in ballistic chiral conductors

open access: yes, 2013
The edge channels of the quantum Hall effect provide one dimensional chiral and ballistic wires along which electrons can be guided in optics like setup. Electronic propagation can then be analyzed using concepts and tools derived from optics.
Albert   +125 more
core   +4 more sources

Atmospheric tomography with separate minimum variance laser and natural guide star mode control [PDF]

open access: yes, 2009
This paper introduces a novel, computationally efficient, and practical atmospheric tomography wavefront control architecture with separate minimum variance laser and natural guide star mode estimation.
Ellerbroek, B. L., Gilles, L.
core   +1 more source

Experimental Analysis of the Light Wavelength’s Impact on the Performance of a Silicon Solar Cell

open access: yesEnergies
The main aim of this article is to analyse the Si solar cell’s behaviour when it is exposed to light of different colours. An experimental work, with 100 experimental tests, was carried out, using an RGB LED.
Catarina Pinho Correia Valério Bernardo   +4 more
doaj   +1 more source

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