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.

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 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

Investigation of the third-order nonlinear optical properties in porphyrin solutions in the picosecond regime

2015 ◽  
Vol 24 (03) ◽  
pp. 1550030 ◽  
Author(s):  
M. Chniti ◽  
C. Cassagne ◽  
J. L. Godet ◽  
G. Boudebs
Keyword(s):  
Refractive Index ◽  
Optical Properties ◽  
Time Dependence ◽  
Nonlinear Optical ◽  
Optical Response ◽  
Spectral Width ◽  
Incident Laser ◽  
Third Order ◽  
The Third ◽  
532 Nm

The D4σ-Z-scan technique is used to evaluate the sign and the magnitude of the nonlinear (NL) refractive index and the NL absorption (NLA) coefficient with a laser delivering single pulses in the picosecond regime at 355 nm, 532 nm and 1064 nm. The NL optical response of the zinc porphyrins (Pph) has been found to be significantly enhanced. The study of the NLA and refraction is performed, taking into account the time dependence and the spectral width of the incident laser. The variations of the NL coefficients as a function of the intensity and the concentration are provided and are found to be linear.

Synthesis Approaches For Improving the Nonlinear Optical Properties of Pbz Polymers

1987 ◽  
Vol 109 ◽  
Author(s):  
James F. Wolfe ◽  
Bock H. Loo ◽  
Robert A. Sanderson ◽  
Steven P. Bitler
Keyword(s):  
Optical Properties ◽  
Nonlinear Optical ◽  
Main Chain ◽  
Second Order ◽  
Carboxyl Group ◽  
Amino Group ◽  
Flexible Polymers ◽  
Third Order ◽  
Guest Molecules ◽  
Dimethylamino Group

ABSTRACTThe synthesis of three types of functionalized benzazole structures is described. A centrosymmetric dihydroxy-benzobisthiazole has been synthesized for incorporation in flexible polymers having rigid, conjugated, third order nlo active units in the main chain. Benzazole structures terminated with an N,N-dimethylamino group and a carboxyl group have been synthesized for use as second order nlo pendants with flexible polymers. Benzazole structures terminated with an N,N-dimethylamino group and an amino group have been synthesized as precursors to second order nlo guest molecules.

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.

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 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

SIZE DEPENDENT SWITCHING FROM REVERSE SATURABLE TO SATURABLE ABSORPTION IN CARBOXYLATE-MODIFIED MICROSPHERES

2011 ◽  
Vol 20 (02) ◽  
pp. 137-143
Author(s):  
MANU VAISHAKH ◽  
S. MATHEW ◽  
V. P. N. NAMPOORI
Keyword(s):  
Optical Properties ◽  
Nonlinear Optical ◽  
Nonlinear Response ◽  
Second Harmonic ◽  
Saturable Absorption ◽  
Reverse Saturable Absorption ◽  
Third Order ◽  
Size Dependent ◽  
The Third ◽  
532 Nm

The third order nonlinear optical properties of two different sized carboxylate-modified microspheres are investigated at different pump powers. The nonlinear absorption (NLA) is measured at 532 nm using 10 Hz, 7 ns pulses from the second harmonic generated from a Q-switched Nd -YAG laser in an open aperture Z-scan setup. The nonlinear response is size-dependent, and switching from reverse saturable absorption (RSA) to saturable absorption (SA) is observed as the size increases.

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
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