Nonlinear optical properties of colloidal carbon nanoparticles: nanodiamonds and carbon dots

RSC Advances ◽  
2014 ◽  
Vol 4 (76) ◽  
pp. 40152-40160 ◽  
Author(s):  
Irene Papagiannouli ◽  
Athanasios B. Bourlinos ◽  
Aristides Bakandritsos ◽  
Stelios Couris
Keyword(s):  
Optical Properties ◽  
Carbon Dots ◽  
Carbon Nanoparticles ◽  
Nonlinear Optical ◽  
Laser Excitation ◽  
Optical Limiting ◽  
Nonlinear Optical Properties ◽  
Nlo Response ◽  
Colloidal Carbon ◽  
532 Nm

Nanodiamonds (NDs) and carbon-dots (CDs) suspensions exhibit significant NLO response under both ps and ns laser excitation. NDs exhibit important optical limiting action under nanosecond visible (532 nm) and infrared (1064 nm) laser excitation.

scholarly journals Synthesis, Fluorescence and Nonlinear Optical Properties of Phthalocyanine Derivatives in the Continuous-wave and Pulsed Excitation Regimes-=SUP=-*-=/SUP=-

2021 ◽  
Vol 129 (5) ◽  
pp. 626
Author(s):  
Hacene Manaa ◽  
Devrim Attila ◽  
Ayse Gul Gurek ◽  
Sughra Mohamed ◽  
Fadheela A. Alawainati ◽  
...  
Keyword(s):  
Optical Properties ◽  
Nonlinear Optical ◽  
Continuous Wave ◽  
Pulsed Laser ◽  
Optical Limiting ◽  
Nonlinear Optical Properties ◽  
Visible Range ◽  
Third Order ◽  
Nonlinear Properties ◽  
532 Nm

In this work, the photo-physical properties of seven different phthalocyanine derivatives are studied, with a focus on their transparency spectral range. Two compounds among them are recently synthesised. The investigations include synthesis, photoluminescence, absorptive and refractive nonlinear properties, and optical limiting performances. The compounds are found to be emitting interesting broad fluorescence bands in the visible range. The nonlinear optical properties are investigated with the help of Z-scan technique, with both a continuous laser at 488, 514.5 and 632.8 nm, and with a pulsed laser at 532 nm. The sign and the magnitude of the nonlinear refractive index, third-order susceptibility, and nonlinear absorption coefficient have been evaluated in the seven compounds. The optical limiting performance of each compound was also evaluated in the continuous and pulsed laser excitation regimes. Keywords:

The Preparation and Characterization of Novel Nonlinear Optical Active Dye

2013 ◽  
Vol 750-752 ◽  
pp. 899-902
Author(s):  
Lin Feng Li ◽  
Hong Yao Xu
Keyword(s):  
Optical Properties ◽  
Optical Property ◽  
Nonlinear Optical ◽  
Nonlinear Optical Property ◽  
Condensation Reaction ◽  
Nonlinear Optical Properties ◽  
532 Nm ◽  
Triazine Dye

A novel nonlinear optical active triazine dye 2-(4-methyl-4-amino-azobenzene )-4-sodium sulfanilate-6-chloro-1,3,5-triazine was synthesized by condensation reaction and characterized by FTIR, 1HNMR, respectively. Their nonlinear optical properties were investigated using 5 ns pulse at 532 nm, which showed excellent nonlinear optical property.

scholarly journals Third-order nonlinear optical response and optical limiting of colloidal carbon dots

2014 ◽  
Vol 22 (10) ◽  
pp. 12013 ◽  
Author(s):  
Panagiotis Aloukos ◽  
Irini Papagiannouli ◽  
Athanasios B. Bourlinos ◽  
Radek Zboril ◽  
Stelios Couris
Keyword(s):  
Carbon Dots ◽  
Nonlinear Optical ◽  
Optical Limiting ◽  
Optical Response ◽  
Nonlinear Optical Response ◽  
Third Order ◽  
Colloidal Carbon

Nonlinear optical properties of polyphthalocyanine porous organic frameworks

2020 ◽  
Vol 44 (36) ◽  
pp. 15345-15349
Author(s):  
Tingfeng Wang ◽  
Tao Sun ◽  
Wei Tang ◽  
Wenbo Huang ◽  
Wenxiang Zhang ◽  
...  
Keyword(s):  
Optical Properties ◽  
Nonlinear Absorption ◽  
Nonlinear Optical ◽  
Optical Limiting ◽  
Nonlinear Optical Properties

sp3-hybridized carbon bridge polyphthalocyanine porous organic frameworks can enhance nonlinear absorption and optical limiting properties.

Light-matter Interaction Under Intense Field Conditions: Nonlinear Optical Properties of Metallic-dielectric Nanostructures

2019 ◽  
Vol 4 (1) ◽  
pp. 51-62
Author(s):  
Enza Fazio ◽  
Luisa D'Urso ◽  
Rosalba Saija ◽  
Saveria Santangelo ◽  
Fortunato Neri
Keyword(s):  
Optical Properties ◽  
Nonlinear Optical ◽  
Nonlinear Refraction ◽  
Optical Limiting ◽  
Nonlinear Optical Properties ◽  
Hybrid Nanostructures ◽  
Field Conditions ◽  
Photon Absorption ◽  
Noble Metal Nanoparticles ◽  
Intense Field

Background: Metallic–dielectric plasmonic nanoparticles have recently aroused great interest in view of many and novel technological applications, based on the interaction between light and matter under intense field conditions, in nonlinear integrated photonics and opto-fluidics, thanks to the possibility of tuning their electronic and optical properties through a fine control of the synthesis parameters and their nanoparticles under a high-power laser, like the one used during z-scan measures. Objective: The goal of this work is the study of nonlinear optical properties (as nonlinear refraction, scattering, two-photon absorption, optical limiting) of colloids synthesized in different liquid media by Pulsed laser ablation in liquids (PLAL), which is a photo-assisted synthesis technique ensuring the formation of stable, contaminant-free colloids directly during the ablation process. Methods: Noble metal nanoparticles, metal oxides hybrid nanostructures and silicon-based nanomaterials, were prepared by nanosecond and picosecond PLAL technique, in different media. The third-order nonlinear optical (NLO) properties have been studied by the use of a single beam z-scan technique with Q-switched frequency doubled Nd:YAG laser (λ=532 nm) at 5 ns pulse. Results: 1) A good stability of the PLAL nanocolloids under a high laser power; 2) the limiting threshold reduction inducted by the Ag-Au nanoparticles, the increase of the NLO absorption coefficient β, the reduction of the transmittance/scattering signal and the presence of a pronounced asymmetry of the peak/valley profile of the metal decorated metal oxide nanomaterials compared to the separately produced components. Conclusion: An intriguing coupling between the nature of the optical limiting response and the nanostructures rearrangement upon intense field conditions, explaining z-scan data by a classical approach able to account for the nanoparticles asymmetry and plasmonic effects, are the main results found.

Investigations on nonlinear optical properties of gold nanoparticles doped fluoroborate glasses for optical limiting applications

2020 ◽  
Vol 538 ◽  
pp. 120010 ◽  
Author(s):  
Abhiram Jagannathan ◽  
R. Rajaramakrishna ◽  
K.M. Rajashekara ◽  
Jagannath Gangareddy ◽  
Vinayak Pattar K ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Optical Properties ◽  
Nonlinear Optical ◽  
Optical Limiting ◽  
Nonlinear Optical Properties
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