scholarly journals Highly broadband NLO response of acceptor–donor–acceptor materials with a planar conformation

2021 ◽  
Vol 2 (6) ◽  
pp. 2097-2103
Author(s):  
Yulin Huang ◽  
Wenfa Zhou ◽  
Xiaofang Li ◽  
Li Jiang ◽  
Yinglin Song
Keyword(s):  
Organic Photovoltaic ◽  
Third Order ◽  
Nlo Properties ◽  
The Third ◽  
Nlo Response ◽  
Planar Conformation ◽  
Planar Molecule ◽  
Donor Acceptor ◽  
Film State ◽  
Better Than

The third-order NLO properties of A–D–A molecules originally derived from organic photovoltaic (OPV) devices are studied. The results show that NLO performance of planar molecule (O-IDTBR) is better than that of twisted molecule (IDFBR) in solution or film state.

Third order NLO properties of corannulene and its Li-doped dimers: effect of concave–convex and convex–convex structures

RSC Advances ◽  
2015 ◽  
Vol 5 (97) ◽  
pp. 79783-79791 ◽  
Author(s):  
Li Wang ◽  
Wen-Yong Wang ◽  
Xin-Yan Fang ◽  
Chang-Li Zhu ◽  
Yong-Qing Qiu
Keyword(s):  
Charge Transfer ◽  
Third Order ◽  
Nlo Properties ◽  
The Third ◽  
Nlo Response

The convex–convex stacking motif of corannulene dimers enhances the third-order NLO response due to obvious interlayer charge transfer.

Synthesis and third-order nonlinear optical properties of novel ethynyl-linked heteropentamer composed of four porphyrins and one pyrene

2009 ◽  
Vol 13 (02) ◽  
pp. 275-282 ◽  
Author(s):  
Ning Sheng ◽  
Jing Sun ◽  
Yongzhong Bian ◽  
Jianzhuang Jiang ◽  
Dong Xu
Keyword(s):  
Optical Properties ◽  
Nonlinear Optical ◽  
Three Dimensional ◽  
Spectroscopic Methods ◽  
Third Order ◽  
Zinc Compounds ◽  
Nlo Properties ◽  
Metal Free ◽  
The Third ◽  
Wide Range

Novel heteropentameric porphyrins-pyrene arrays, in which four meso-tetraphenyl porphyrins are linked to the center unit of pyrene by four acetylenyl bonds, were designed and synthesized. The newly synthesized heteropentameric compounds have been characterized by a wide range of spectroscopic methods. The third-order nonlinear optical (NLO) properties of both the metal-free and zinc compounds of the three-dimensional arrays were investigated by Z-scan experiments, showing enhanced NLO properties compared with that of the porphyrin and pyrene monomers.

Enhancement of third-order nonlinear optical properties of HMTA stabilized pure and doped ZnS nanoparticles and their electronic structures

2018 ◽  
Vol 27 (02) ◽  
pp. 1850016 ◽  
Author(s):  
K. Vijai Anand ◽  
G. Vinitha ◽  
Sanjeev Gautam ◽  
K. H. Chae ◽  
R. Mohan ◽  
...  
Keyword(s):  
Transition Metals ◽  
Electronic Structures ◽  
Nonlinear Optical ◽  
Zns Nanoparticles ◽  
Third Order ◽  
Tetrahedral Symmetry ◽  
Nonlinear Optical Susceptibility ◽  
Nlo Properties ◽  
The Third ◽  
Mn Doped

This study reports the third-order nonlinear optical (NLO) properties of hexamethylenetetramine (HMTA) stabilized pure and transition metals (Cu, Co and Mn) doped ZnS nanoparticles (NPs) and their electronic structures. The third-order NLO properties of pure and transition metals (Cu, Co and Mn) doped ZnS NPs were measured by [Formula: see text]-scan technique. From these measurements, the pure and doped ZnS samples exhibit negative nonlinearity i.e., self-defocusing. The open aperture [Formula: see text]-scan measurement shows saturated absorption within the medium. The prepared pure and doped ZnS samples exhibit nonlinear refractive index of the order of 10[Formula: see text][Formula: see text](cm2/W), nonlinear absorption (NLA) coefficient of the order of 10[Formula: see text][Formula: see text]cm/W and nonlinear optical susceptibility of the order of 10[Formula: see text][Formula: see text]esu. The electronic structures of these ZnS NPs were investigated using near edge X-ray absorption fine structure (NEXAFS) measurements at the C K-, N K- and Co L[Formula: see text]-edges. The C K- and N K-edges XANES spectra reveal the appearance of several spectral features in the range 285–290[Formula: see text]eV and 390–430[Formula: see text]eV respectively. The Co L[Formula: see text]-edge NEXAFS spectrum exhibits multiplet absorption lines similar to those of Co[Formula: see text] ions coordinated in tetrahedral symmetry with four sulfur nearest neighbors. These results clearly demonstrate that divalent Co ions substitute Zn sites. From the Raman spectra, the appearance of multiple resonance Raman peaks indicates that the prepared ZnS samples have good optical quality.

scholarly journals Study on The Third-Order NLO Properties of Trace Metal Ions in Nitric Acid Solution by Closed-Aperture Z-scan Technique

2020 ◽  
Vol 1484 ◽  
pp. 012005
Author(s):  
Muhammad Izz Rosli ◽  
Afiq Awalludin ◽  
Maisarah Duralim ◽  
Mundzir Abdullah ◽  
Muhammad Safwan Abd Aziz
Keyword(s):  
Nitric Acid ◽  
Acid Solution ◽  
Trace Metal ◽  
Metal Ions ◽  
Nitric Acid Solution ◽  
Closed Aperture ◽  
Third Order ◽  
Nlo Properties ◽  
Trace Metal Ions ◽  
The Third

Numerical Method with the Third-Order ENO Reconstruction Satisfying Two Conversation Laws for Linear Advection Equation

2011 ◽  
Vol 130-134 ◽  
pp. 2969-2972
Author(s):  
Rong San Chen ◽  
An Ping Liu
Keyword(s):  
Numerical Solutions ◽  
Advection Equation ◽  
Finite Volume Schemes ◽  
Third Order ◽  
The Third ◽  
Linear Advection Equation ◽  
Long Time ◽  
Super Convergence ◽  
Better Than ◽  
Eno Scheme

In recent years, Mao and his co-workers developed a class of finite-volume schemes for evolution partial differential equations, see [1-5].The schemes show a super-convergence quality and have good structure-preserving property in long-time numerical simulations. In [6], Chen and Ma developed a scheme which combine the idea of paper [5] and that of the the second-order ENO scheme [7]. In this paper, we propose a scheme which extend the result of [6] and obtain the scheme using the third-order ENO reconstruction. Numerical experiments show that our scheme is robust in long-time behaviors. Numerical solutions are far better than those of [6].

Extended conjugation and donor-acceptor substitution to improve the third-order optical nonlinearity of small molecules

2007 ◽  
Vol 90 (25) ◽  
pp. 251106 ◽  
Author(s):  
Joshua C. May ◽  
Ivan Biaggio ◽  
Filip Bures ◽  
François Diederich
Keyword(s):  
Small Molecules ◽  
Optical Nonlinearity ◽  
Third Order ◽  
The Third ◽  
Donor Acceptor

Three novel polyoxoanion-supported compounds: confinement of polyoxoanions in Ni-containing rigid concave surfaces with enhanced NLO properties

2015 ◽  
Vol 44 (42) ◽  
pp. 18347-18353 ◽  
Author(s):  
Yayu Dong ◽  
Xiao Xu ◽  
Guangpeng Zhou ◽  
Hao Miao ◽  
GongHao Hu ◽  
...  
Keyword(s):  
Third Order ◽  
Nlo Properties ◽  
Nlo Response

Three new polyoxometalates confined in metal-containing rigid concave surfaces were developed. All of them gave a strong third-order NLO response.

Growth and characterization of semi-organic third order nonlinear optical (NLO) potassium 3,5-dinitrobenzoate (KDNB) single crystals

RSC Advances ◽  
2016 ◽  
Vol 6 (110) ◽  
pp. 109105-109123 ◽  
Author(s):  
P. Karuppasamy ◽  
V. Sivasubramani ◽  
M. Senthil Pandian ◽  
P. Ramasamy
Keyword(s):  
Single Crystals ◽  
Nonlinear Optical ◽  
Third Order ◽  
Nlo Properties ◽  
The Third

Growth and characterization of potassium 3,5-dinitrobenzoate (KDNB) single crystals. The third order nonlinear optical (NLO) properties were investigated using Z-scan technique.

Synthesis of Main-Chain Polyimides Containing Azoaryl and their Third-Order NLO Properties

2011 ◽  
Vol 306-307 ◽  
pp. 215-219
Author(s):  
Jie Ping Shi ◽  
Li Wei ◽  
Hong Wen Hu ◽  
Ting Chao He ◽  
Xiao Qiang Zhang ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Main Chain ◽  
High Thermal Stability ◽  
Azo Compounds ◽  
Third Order ◽  
Nlo Properties ◽  
The Third ◽  
Good Solubility ◽  
Azo Group ◽  
532 Nm

A series of main-chain polyimides containing azo aryl with different substituted groups have been synthesized by a condensation of corresponding N,N-dichloroethylaminoaryl azo compounds with 4,4’-(hexafluoroisopropylidene) diphthalic bis-imide in an alkaline DMF solution, which have high thermal stability and good solubility in organic solvents. The third-order NLO measurements made with Z-scan technique at 532 nm indicate that the polyimides containing p-nitrophenylazo and nitrobenzothiazole azo group (P2 and P3) have larger third-order nonlinear absorption coefficient (ß) and the nonlinear refractive coefficient (n2).

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