Results 11 to 20 of about 247,892 (261)

Multiplexed holographic transmission gratings recorded in holographic polymer-dispersed liquid crystals: static and dynamic studies [PDF]

open access: yes, 2005
The optimization of the experimental parameters of two multiplexed holographic transmission gratings recorded in holographic polymer-dispersed liquid crystals is investigated.
Camacho, Maria   +4 more
core   +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.
Shigapova, N.M.   +12 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

Mid-infrared volume phase gratings manufactured using ultrafast laser inscription [PDF]

open access: yes, 2013
We report on the ultrafast laser inscription (ULI) of volume phase gratings inside gallium lanthanum sulphide (GLS) chalcogenide glass substrates. The effect of laser pulse energy and grating thickness on the dispersive properties of the gratings is ...
Thomson, Robert R   +3 more
core   +1 more source

Self-organized nonlinear gratings for ultrafast nanophotonics [PDF]

open access: yesNature Photonics, 2018
As devices utilizing femtosecond-duration laser pulses become more commonplace, there is a need for next-generation nonlinear-photonics technologies that enable low-energy femtosecond pulses to be converted from one wavelength to another with high ...
D. Hickstein   +9 more
semanticscholar   +1 more source

Theory of strong coupling between molecules and surface plasmons on a grating

open access: yesNanophotonics, 2022
The strong coupling of molecules with surface plasmons results in hybrid states which are part molecule, part surface-bound light. Since molecular resonances may acquire the spatial coherence of plasmons, which have mm-scale propagation lengths, strong ...
Rider Marie S.   +3 more
doaj   +1 more source

Higher-harmonic adaptation and the detection of squarewave gratings [PDF]

open access: yes, 1987
Adaptation to a high contrast sinewave grating of 1 c/deg spatial frequency causes a large increase in the contrast threshold for a 1 c/deg test grating, but fails to raise the threshold for a squarewave grating of 0.33 c/deg, although the sensitivity of
Magnussen, S.   +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

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

Home - About - Disclaimer - Privacy