Results 11 to 20 of about 128,599 (282)

Harmonically-related diffraction gratings-based interferometer for quadrature phase measurements [PDF]

open access: yes, 2006
We demonstrate the use of shallow diffraction gratings for quadrature phase interferometry. A single shallow diffraction grating-based Michelson interferometer yields only trivial (0° or 180°) phase shift between different output ports.
Cui, Xiquan   +4 more
core   +1 more source

Plasmon drag effect with sharp polarity switching

open access: yesNew Journal of Physics, 2020
The generation of significant photocurrents observed in plasmonic metasurfaces is interesting from a fundamental point of view and promising for applications in plasmon-based electronics and plasmonic sensors with compact electrical detection.
T Ronurpraful, D Keene, N Noginova
doaj   +1 more source

Birefringent optofluidic gratings

open access: yesOptics Express, 2020
A set of parallel microfluidic channels behaving as a diffraction grating operating in the Raman-Nath regime has been fabricated and studied. The diffraction efficiency of such structure can be tuned by selecting a liquid with a particular refractive index and/or optical anisotropy.
Sergio Calixto   +4 more
openaire   +4 more sources

The Infrared Imaging Spectrograph (IRIS) for TMT: Volume phase holographic grating performance testing and discussion [PDF]

open access: yes, 2014
Maximizing the grating efficiency is a key goal for the first light instrument IRIS (Infrared Imaging Spectrograph) currently being designed to sample the diffraction limit of the TMT (Thirty Meter Telescope). Volume Phase Holographic (VPH) gratings have
Chen, Shaojie   +7 more
core   +2 more sources

Design and fabrication of blazed gratings for a waveguide-type head mounted display [PDF]

open access: yes, 2020
In a waveguide-type display for augmented reality, the image is injected in the waveguide and extracted in front of the eye appearing superimposed on the real-world scene.
Cuypers, Dieter   +4 more
core   +1 more source

Chirped gratings in integrated optics [PDF]

open access: yes, 1977
Gratings with variable periods (chirped gratings) have been fabricated by recording the interference pattern of a collimated laser beam with a converging beam generated by a cylindrical lens.
Katzir, A.   +3 more
core   +1 more source

The Optimum-efficiency Beam Multiplier for an Arbitrary Number of Output Beams and Power Distribution

open access: yesJournal of Telecommunications and Information Technology, 2017
This paper deals with phase gratings working in the paraxial domain. The profile of the optimum-efficiency beam multiplier with an arbitrary number of output diffraction orders is derived in an analytic form by exploiting methods from the calculus of ...
Fabrizio Frezza
doaj   +1 more source

Defect Dynamics in Anomalous Latching of a Grating Aligned Bistable Nematic Liquid Crystal Device

open access: yesCrystals, 2022
Deliberate manipulation of topological defects is of particular interest for liquid crystal applications. For example, surface bistability occurs in the grating aligned Zenithal Bistable Device due to the stabilisation of ±½ defects at the points of high
J. C. Jones   +4 more
doaj   +1 more source

Volume diffraction gratings for optical telecommunications applications: design study for a spectral equalizer [PDF]

open access: yes, 2004
The main characteristics required for a diffraction grating used for demultiplexing functions in spectral equalizing systems are investigated, both theoretically and experimentally.
Chevallier, Raymond   +5 more
core   +1 more source

Optical Solitons and Conservation Laws for the Concatenation Model: Undetermined Coefficients and Multipliers Approach

open access: yesUniverse, 2022
This paper retrieves an optical 1–soliton solution to a model that is written as a concatenation of the Lakshmanan–Porsezian–Daniel model and Sasa–Satsuma equation.
Anjan Biswas   +7 more
doaj   +1 more source

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