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.

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.

scholarly journals Synthesis and investigation of nonlinear optical properties of Para Red: Z-scan technique and quantum mechanical calculations

2018 ◽  
Vol 36 (3) ◽  
pp. 445-451 ◽  
Author(s):  
Fatemeh Mostaghni ◽  
Yasaman Abed
Keyword(s):  
Optical Properties ◽  
Nonlinear Optical ◽  
Nonlinear Optical Properties ◽  
Nonlinear Susceptibility ◽  
Quantum Mechanical ◽  
Dipole Polarizability ◽  
Quantum Mechanical Calculations ◽  
Quantum Chemical Analysis ◽  
Third Order ◽  
532 Nm

AbstractIn this study, we present a systematic study of linear and nonlinear optical properties of Para Red with the aim of Z-scan technique and quantum mechanical calculations. The Z-scan experiments were performed using a 532 nm Nd: YAG (SHG) CW laser beam. Para Red exhibited a strong nonlinear refractive index, nonlinear absorption coefficient and third-order nonlinear susceptibility 3.487 × 10−6 cm2/W, 2.341 × 10−1cm/W and 2.157 × 10−4 esu, respectively. Also, quantum chemical analysis was used for the calculation of the dipole moment μ, dipole polarizability α, anisotropy of polarizability Δα and molecular hyperpolarizabilities (β,γ). The results revealed that Para Red has large first and second hyperpolarizabilities. However, from the obtained results, it was found that Para Red can be a promising material for applications in the development of non-linear optical materials.

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.

Third-order nonlinear optical properties of undoped polyaniline solutions and films probed at 532 nm

2001 ◽  
Vol 18 (8) ◽  
pp. 1099 ◽  
Author(s):  
Glauco S. Maciel ◽  
Arandi G. Bezerra, Jr. ◽  
Nikifor Rakov ◽  
Cid B. de Araújo ◽  
Anderson S. L. Gomes ◽  
...  
Keyword(s):  
Optical Properties ◽  
Nonlinear Optical ◽  
Nonlinear Optical Properties ◽  
Third Order ◽  
532 Nm

Third-order nonlinear optical properties of symmetric phenoxazinium chlorides with resonance structures at 532 nm

2011 ◽  
Vol 91 (3) ◽  
pp. 489-494 ◽  
Author(s):  
Jian-Feng Ge ◽  
Yue-Ting Lu ◽  
Ru Sun ◽  
Jian Zhang ◽  
Qing-Feng Xu ◽  
...  
Keyword(s):  
Optical Properties ◽  
Nonlinear Optical ◽  
Nonlinear Optical Properties ◽  
Third Order ◽  
Resonance Structures ◽  
532 Nm

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:

Third-Order Nonlinear Optical Properties of InN Thin Films Under 532 nm Nanosecond Laser Pulses

2017 ◽  
Vol 17 (2) ◽  
pp. 1460-1463
Author(s):  
Jin-Ying Wang ◽  
Zhe-Ming Jin ◽  
Ke-Xin Sun ◽  
Jin-Ding Sun ◽  
Cheng-Bao Yao ◽  
...  
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Nonlinear Optical ◽  
Laser Pulses ◽  
Nonlinear Optical Properties ◽  
Nanosecond Laser ◽  
Third Order ◽  
Nanosecond Laser Pulses ◽  
532 Nm

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...

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