N-Doped carbon dot with surface dominant non-linear optical properties

RSC Advances ◽  
2016 ◽  
Vol 6 (98) ◽  
pp. 95476-95482 ◽  
Author(s):  
Liang Bai ◽  
Shi Qiao ◽  
Hao Li ◽  
Yu Fang ◽  
Yanmei Yang ◽  
...  
Keyword(s):  
Optical Properties ◽  
Carbonyl Group ◽  
Carbon Dots ◽  
Nonlinear Optical ◽  
Third Order ◽  
Carbon Dot ◽  
Nlo Property ◽  
Linear Optical Properties ◽  
Doped Carbon Dots ◽  
Order Susceptibility

Nonlinear optical (NLO) property of N-doped carbon dots was investigated by the Z-scan technique. The carbonyl group on the surface of N-CDs plays a key role and has significant impact on their third order susceptibility χ(3).

Third-order nonlinear optical properties of carboxyl group dominant carbon nanodots

2016 ◽  
Vol 4 (36) ◽  
pp. 8490-8495 ◽  
Author(s):  
Liang Bai ◽  
Shi Qiao ◽  
Yu Fang ◽  
Jianguo Tian ◽  
J. Mcleod ◽  
...  
Keyword(s):  
Optical Properties ◽  
Nonlinear Optical ◽  
Laser System ◽  
Carbon Nanodots ◽  
Nanosecond Laser ◽  
Carboxyl Group ◽  
Third Order ◽  
Nlo Property ◽  
System P ◽  
532 Nm

We quantitatively investigate the nonlinear optical (NLO) property of carbon nanodots (CNDs, less than 10 nm) by the Z-scan technique using a tunable 532 nm nanosecond laser system.

Effect of Electric Field on Nonlinear Optical Properties of Hydrazone Doped PMMA Films

2012 ◽  
Vol 584 ◽  
pp. 88-91
Author(s):  
N.K. Siji Narendran ◽  
K.R. Reshma ◽  
P. Sudheesh ◽  
K. Chandrasekharan
Keyword(s):  
Optical Properties ◽  
Electric Field ◽  
Nonlinear Optical ◽  
Second Harmonic ◽  
Laser Pulses ◽  
Nonlinear Optical Properties ◽  
Third Order ◽  
Single Beam ◽  
Solution Casting Method ◽  
Order Susceptibility

We report the effect of electric field on third order nonlinear optical properties of Hydrazone (Hz) doped Polymethyl methacrylate (PMMA) films. The films were prepared by solution casting method. Poling of films was done by corona discharge. Single beam Z-scan technique with 7ns Nd: YAG laser pulses at 532nm were employed for the measurements. Third order susceptibility of films was measured with an emphasis on the applied electric field. We also demonstrated the second harmonic generation in the corona poled films.

New Self-Focusing Materials: Synthesis, Structures and Nonlinear Optical Properties of Butterfly Shaped Clusters

1994 ◽  
Vol 374 ◽  
Author(s):  
S. Shi ◽  
X. Q. Xin
Keyword(s):  
Optical Properties ◽  
Nonlinear Absorption ◽  
Nonlinear Optical ◽  
Nonlinear Optical Properties ◽  
Acetonitrile Solution ◽  
Materials Synthesis ◽  
Third Order ◽  
Nlo Property ◽  
Self Focusing ◽  
532 Nm

AbstractCompounds WCu2OS3(PPh3)4 (I) and MoCu2OS3(PPh3)3 (II) were synthesized by reactions of (NH4)2MO2S2 (M = W, Mo), Cu2S and PPh3 in solid state for nonlinear optical studies. A wide transparent window (λ = 400 - 1000 nm) was observed for both clusters, which makes them attractive for nonlinear optical (NLO) applications. NLO properties of the clusters were studied with a 7-ns pulsed laser at 532 nm. Cluster I exhibits mainly optical self-focusing (n2 = 8 × 10-18 m2 W-1, as measured with an 1.2 × 10-4 M acetonitrile solution) with negligibly small nonlinear absorption. Cluster II exhibits both optical self-focusing (n2 = 5 × 10-17 m2 W-1, as measured with a 7.4 × 10-5 M acetonitrile solution) and nonlinear absorption (α2 = 2.6 × 10-10 m W-1). The third-order NLO susceptibilities (χ(3)) of the two clusters at the above-mentioned concentrations are 2 × 10-11 esu for I and 1.2 × 10-10 esu for II respectively. These nonlinear optical properties of the clusters were compared with those of cubic cage shaped and nest shaped clusters to reveal a qualitative structure/NLO property correlation.

scholarly journals Near-Resonant Nonlinear Optical Properties of Pseudoisocyanine J-Aggregates in Langmuir-Blodgett Layers

1997 ◽  
Vol 17 (3) ◽  
pp. 123-137 ◽  
Author(s):  
K.-H. Feller ◽  
R. Gadonas ◽  
A. Pugzlys ◽  
D. Möbius
Keyword(s):  
Optical Properties ◽  
Nonlinear Optical ◽  
Nonlinear Optical Properties ◽  
Third Order ◽  
Langmuir Blodgett ◽  
Langmuir Blodgett Films ◽  
J Aggregates ◽  
Exciton Annihilation ◽  
Dynamical Disorder ◽  
Order Susceptibility

The nonlinear optical properties of pseudoisocyanine J-aggregates in Langmuir-Blodgett films have been investigated by means of degenerate four wave mixing (DFWM) process. The conversion efficiency of the DFWM signal and the estimated third order susceptibility were found to be comparable with those of pseudoisocyanine J-aggregates in solution under comparable resonance conditions. The intensity dependence of the converted (DFWM) signal is interpreted as resulting from different processes including saturation, exciton-exciton annihilation and secondary processes of dynamical disorder.

Third-order optical nonlinearity of DSR13/THF solutions under CW He–Ne laser irradiation using Z-scan method

2021 ◽  
pp. 1-7
Author(s):  
Bassam Abbas ◽  
Mohammad Alshikh Khalil
Keyword(s):  
Refractive Index ◽  
Optical Properties ◽  
Nonlinear Absorption ◽  
Nonlinear Refractive Index ◽  
Nonlinear Optical ◽  
Nonlinear Optical Properties ◽  
Photon Absorption ◽  
Third Order ◽  
The Third ◽  
Order Susceptibility

The Z-scan technique was employed to explore the third-order nonlinear optical properties of disperse red 13 organic chromophore solutions in tetrahydrofuran. A continuous-wave He–Ne laser (632.8 nm) was used as a source of irradiation. The nonlinear absorption and nonlinear refractive index coefficients of this dye were investigated. The results showed that this dye has a good nonlinear response with its real and imaginary quantities of third-order susceptibility. The solutions showed negative nonlinear refraction. The best obtained value of the third-order susceptibility was 6.37 × 10–3 esu at a dye concentration of 3.15 × 10–4 mol/L. Moreover, the nonlinear optical properties were enhanced with higher dye concentrations, and an elevated trend in nonlinear absorption and nonlinear refractive index coefficients was observed. Also, it was found that the reverse saturable absorption was the main mechanism responsible for the two-photon absorption effect in DSR13/THF samples.

Synthesis, characterization, third-order non-linear optical properties and DFT studies of novel SUBO bridged ball-type metallophthalocyanines

2020 ◽  
Vol 49 (47) ◽  
pp. 17263-17273
Author(s):  
Shabnam Alizadeh ◽  
Gülşen Kösoğlu ◽  
Murat Erdem ◽  
Nursel Açar-Selçuki ◽  
Metin Özer ◽  
...  
Keyword(s):  
Optical Properties ◽  
Nonlinear Optical ◽  
Nonlinear Optical Properties ◽  
Dft Studies ◽  
Third Order ◽  
Non Linear ◽  
Linear Optical Properties ◽  
Linear Optical

Novel SUBO bridged ball-type metallophthalocyanines were synthesized. NLA of the complexes indicated that BTCuPc has significantly better nonlinear optical properties. DFT was used for geometry optimizations and optical analyses.

Third-order nonlinear optical properties of axially modified indium phthalocyanine with alkyl chain

2021 ◽  
Author(s):  
lan chen ◽  
chun ying he ◽  
Dongmei Liu ◽  
Yi Zheng ◽  
Lu Wan Li ◽  
...  
Keyword(s):  
Optical Properties ◽  
Electron Density ◽  
Nonlinear Optical ◽  
Alkyl Chain ◽  
Nonlinear Optical Properties ◽  
Third Order ◽  
Nlo Property

The increasment of the electron density on phthalocyanine (Pc) ring is an effective way for excellent third order nonlinear optical (NLO) property. Herein, a series of axially substituted indium Pcs...

scholarly journals Wavelength-dependent nonlinear optical properties of 8-(4-methoxyphenyl)-6-oxo-3-p-tolyl-6H-pyrido[1,2-b][1,2,4]triazine-7,9-dicarbonitrile

2018 ◽  
Vol 96 (12) ◽  
pp. 1288-1294 ◽  
Author(s):  
M. Khanzadeh ◽  
M. Dehghanipour ◽  
A. Darehkordi ◽  
F. Rahmani
Keyword(s):  
Optical Properties ◽  
Nonlinear Optical ◽  
Continuous Wave ◽  
Nonlinear Optical Properties ◽  
Saturable Absorption ◽  
Reverse Saturable Absorption ◽  
Third Order ◽  
Incident Intensity ◽  
532 Nm ◽  
Order Susceptibility

In this study, 8-(4-methoxyphenyl)-6-oxo-3-p-tolyl-6H-pyrido[1,2-b][1,2,4]triazine-7,9-dicarbonitrile (A) was prepared and then the nonlinear optical properties of this compound, including nonlinear refractive index (n2) and nonlinear absorption coefficient (β) were measured using Z-scan technique by continuous wave laser diode at wavelengths of 405 and 532 nm. At wavelength of 532 nm, by increasing the incident intensity a switch over from saturable absorption (SA) to reverse saturable absorption (RSA) was observed. The results showed that the nonlinear optical properties of this compound depend on the wavelength. It was also observed that with decreasing incident intensity, the thermal nonlinear refractive coefficient increased accordingly, while its thermo-optic coefficient decreased. In addition, the third-order susceptibility of this compound in wavelength of 532 nm was obtained higher than 405 nm.

Sign in / Sign up

Export Citation Format

Share Document