Results 11 to 20 of about 622,419 (187)

Electrically regulating nonlinear optical limiting of metal-organic framework film [PDF]

open access: yesNature Communications, 2022
Nonlinear optical properties of metal-organic framework can be tuned for potential optical applications. Here the authors demonstrate an enhancement the nonlinear absorption coefficient of MOF film by applying external electric field.
Zhi-Zhou Ma   +4 more
doaj   +2 more sources

Enhancing and Tuning the Nonlinear Optical Response and Wavelength-Agile Strong Optical Limiting Action of N-octylamine Modified Fluorographenes [PDF]

open access: yesNanomaterials, 2020
Fluorographene has been recently shown to be a suitable platform for synthesizing numerous graphene derivatives with desired properties. In that respect, N-octylamine-modified fluorographenes with variable degrees of functionalization are studied and ...
Aristeidis Stathis   +4 more
doaj   +2 more sources

Effects of Different TiO2 Particle Sizes on the Microstructure and Optical Limiting Properties of TiO2/Reduced Graphene Oxide Nanocomposites [PDF]

open access: yesNanomaterials, 2019
TiO2/reduced graphene oxide (rGO) nanocomposites with two different TiO2 particle sizes were synthesized by a facile hydrothermal method using two different source materials of Ti: tetrabutyl titanate (TBT) and commercial TiO2 powder (P25).
Yuyu Ren   +5 more
doaj   +2 more sources

Efficient Optical Limiting in Carbon-Nanohorn Suspensions

open access: yesEnergies, 2021
Nonlinear optical properties of aqueous dispersions of single-wall carbon nanohorns (SWCNH) are investigated by a simple and original technique, relating nonlinear transmittance measurements with semi-empirical model fitting and allowing to identify the ...
Elisa Sani   +3 more
doaj   +1 more source

Functional nonlinear optical nanoparticles synthesized by laser ablation

open access: yesOpto-Electronic Science, 2022
Nonlinear optics is an important research direction with various applications in laser manufacturing, fabrication of nanostructure, sensor design, optoelectronics, biophotonics, quantum optics, etc.
Lianwei Chen, Minghui Hong
doaj   +1 more source

The largest aluminum molecular rings: Phenol‐thermal synthesis, photoluminescence, and optical limiting

open access: yesAggregate, 2023
It is of great interest to modulate the photophysical properties by atomically precise chemical control. The incorporation of conjugated ligands into crystalline materials provides a platform for molecular‐level interpretation of the structure‐activity ...
San‐Tai Wang   +4 more
doaj   +1 more source

Enhanced non-linear optical properties of porphyrin-based polymers covalently functionalized with graphite phase carbon nitride

open access: yesFrontiers in Chemistry, 2022
In our work, a flurry of original porphyrin-based polymers covalently functionalized g-C3N4 nanohybrids were constructed and nominated as PPorx-g-C3N4 (x = 1, 2 and 3) through click chemistry between porphyrin-based polymers with alkyne end-groups ...
Chen Liang   +5 more
doaj   +1 more source

Broadband optical power-limiter metalens [PDF]

open access: yesOSA Optical Design and Fabrication 2021 (Flat Optics, Freeform, IODC, OFT), 2021
We report a hybrid system that synergically combines a broadband optical power limiter with a transmittance difference between on-state (70°C) and off-state (25°C) about 62.5%, and a diffraction-limited broadband metalens from 1534 nm to 1664 nm.
Hsu, Liyi, Ndao, Abdoulaye
openaire   +2 more sources

Ultrathin Broadband Reflective Optical Limiter [PDF]

open access: yesLaser & Photonics Reviews, 2021
AbstractOptical limiters are nonlinear devices that feature decreasing transmittance with increasing incident optical intensity, and thus can protect sensitive components from high‐intensity illumination. The ideal optical limiter reflects rather than absorbs light in its active (“limiting”) state, minimizing risk of damage to the limiter itself ...
Chenghao Wan   +9 more
openaire   +2 more sources

Optical Limiting Performance of Titanium Dioxide-Filled Polyvinylpyrrolidone Composite Nanofibers [PDF]

open access: yesACS Omega
Yasemin Pepe   +6 more
doaj   +2 more sources

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