Synthesis, third-order nonlinear optical (NLO) properties of polystyrene containing 1,8-naphthalimide chromophores in the side chain

e-Polymers ◽  
2010 ◽  
Vol 10 (1) ◽  
Author(s):  
Jin Zhengneng ◽  
Li Najun ◽  
Lu Jianmei ◽  
Xu Qingfeng ◽  
Xia Xuewei ◽  
...  
Keyword(s):  
Nonlinear Optical ◽  
Side Chain ◽  
Saturable Absorption ◽  
Reverse Saturable Absorption ◽  
Third Order ◽  
Nlo Properties ◽  
H Nmr ◽  
The Third ◽  
Methoxy Groups ◽  
Methacrylate Monomers

AbstractTwo novel methacrylate monomers, (4-((methacryloyloxy)-hexyloxy)- benzylidene-hydrazine)-N-(4-alkyloxy)-benzene-1,8-naphthalimide (NAOPH) and (4-((methacryloyloxy)-hexyloxy)-3,5-dimethoxy-benzylidene-hydrazine)-N-(4-alkyloxy)- benzene-1,8-naphthalimide (NA3OPH) were synthesized. The polystyrenes containing 1,8-naphthalimide chromophores were prepared by copolymerization of styrene with NAOPH or NA3OPH. The obtained copolymers were characterized by GPC, 1H-NMR and TLC. The third-order NLO properties of the monomers and copolymers were measured by Z-scan technique. Results show that both monomers and copolymers have reverse saturable absorption (RSA) and selfdefocusing effects. For monomers, NA3OPH has larger third-order NLO susceptibility χ(3) than NAOPH due to introduction of two more methoxy groups. For all copolymers, larger χ(3) is observed when content of 1,8-naphthalimide chromophores was higher.

Enhanced third-order nonlinear optical properties determined in thin films using the Z-scan technique: bis(μ-4,4′-oxydibenzoato)bis[(4′-phenyl-2,2′:6′,2′′-terpyridine)cobalt(II)]

2016 ◽  
Vol 72 (5) ◽  
pp. 451-455 ◽  
Author(s):  
Runqiang Liu ◽  
Ning Zhao ◽  
Ping Liu ◽  
Caixia An ◽  
Zhaoxun Lian
Keyword(s):  
Thin Films ◽  
Nonlinear Optical ◽  
Response Times ◽  
Saturable Absorption ◽  
Reverse Saturable Absorption ◽  
Hydrothermal Conditions ◽  
Third Order ◽  
Nlo Properties ◽  
Heterocyclic Ligand ◽  
The Third

π-Conjugated organic materials exhibit high and tunable nonlinear optical (NLO) properties, and fast response times. 4′-Phenyl-2,2′:6′,2′′-terpyridine (PTP) is an important N-heterocyclic ligand involving π-conjugated systems, however, studies concerning the third-order NLO properties of terpyridine transition metal complexes are limited. The title binuclear terpyridine CoIIcomplex, bis(μ-4,4′-oxydibenzoato)-κ3O,O′:O′′;κ3O′′:O,O′-bis[(4′-phenyl-2,2′:6′,2′′-terpyridine-κ3N,N′,N′′)cobalt(II)], [Co2(C14H8O5)2(C21H15N3)2], (1), has been synthesized under hydrothermal conditions. In the crystal structure, each CoIIcation is surrounded by three N atoms of a PTP ligand and three O atoms, two from a bidentate and one from a symmetry-related monodentate 4,4′-oxydibenzoate (ODA2−) ligand, completing a distorted octahedral coordination geometry. Neighbouring [Co(PTP)]2+units are bridged by ODA2−ligands to form a ring-like structure. The third-order nonlinear optical (NLO) properties of (1) and PTP were determined in thin films using the Z-scan technique. The title compound shows a strong third-order NLO saturable absorption (SA), while PTP exhibits a third-order NLO reverse saturable absorption (RSA). The absorptive coefficient β of (1) is −37.3 × 10−7 m W−1, which is larger than that (8.96 × 10−7 m W−1) of PTP. The third-order NLO susceptibility χ(3)values are calculated as 6.01 × 10−8 e.s.u. for (1) and 1.44 × 10−8 e.s.u. for PTP.

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 P3HT studied by nanosecond Z-scan in orthodichlorobenzene

2018 ◽  
Vol 27 (01) ◽  
pp. 1850001
Author(s):  
Feng Wu ◽  
Shunlong Zhao ◽  
Siwen Zhang ◽  
Jiang Lv
Keyword(s):  
Optical Properties ◽  
Absorption Coefficient ◽  
Nonlinear Optical ◽  
Nonlinear Refraction ◽  
Optical Nonlinearity ◽  
Saturable Absorption ◽  
Reverse Saturable Absorption ◽  
Third Order ◽  
Input Intensity ◽  
Nlo Properties

The nonlinear optical (NLO) properties of P3HT in orthodichlorobenzene were investigated at 532[Formula: see text]nm by Z-scan technique in the nanosecond domain. The nonlinear refraction of P3HT solution is up to an order of 10[Formula: see text][Formula: see text]esu and changes the sign from positive to negative with an increase in the input intensity. The reverse saturable absorption of the P3HT solution was observed in the intensity range of the measurements and their nonlinear absorption coefficient reaches an order of 102[Formula: see text]cm/GW. The strong optical nonlinearity perhaps allows them to be widely applied in the photoelectric field.

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.

Nonlinear optical properties of lutetium bisphthalocyanine and its application for an optical switch

2004 ◽  
Vol 08 (07) ◽  
pp. 984-988 ◽  
Author(s):  
Lung-Chang Liu ◽  
Chia-Hon Tai ◽  
Andrew Teh Hu ◽  
Tai-Huei Wei
Keyword(s):  
Optical Properties ◽  
Nonlinear Optical ◽  
Optical Switch ◽  
Nonlinear Optical Properties ◽  
Saturable Absorption ◽  
Reverse Saturable Absorption ◽  
First Hyperpolarizability ◽  
Second Hyperpolarizability ◽  
Nlo Properties

The nonlinear optical (NLO) properties of lanthanide bisphthalocyanine (Lu(TBPc)Pc), including first hyperpolarizability, second hyperpolarizability and reverse saturable absorption (RSA), have been investigated. Furthermore, Lu(TBPc)Pc has also been applied for optical switch based on its RSA performance.

Crystal structures and third-order optical properties of three manganese(II) complexes constructed from N-heterocyclic and polycarboxylate ligands

2017 ◽  
Vol 72 (2) ◽  
pp. 125-131
Author(s):  
Zhaoxun Lian ◽  
Ning Zhao ◽  
Ping Liu ◽  
Caixia An ◽  
Fengxia Yang ◽  
...  
Keyword(s):  
Molecular Structures ◽  
Manganese Acetate ◽  
Saturable Absorption ◽  
Reverse Saturable Absorption ◽  
Heterocyclic Ligands ◽  
Third Order ◽  
Single Beam ◽  
Focusing Effect ◽  
The Third ◽  
Self Focusing

AbstractThree new manganese(II) complexes, {[Mn(PTP)]2[Mn(PTP)(H2O)]}(BTA)2·2H2O (1), [Mn(PTP)(ODA)]2 (2), and [Mn(FTP)(ODA)]2·H2O (3), were synthesized by the reactions of manganese acetate and polycarboxylic acid in the presence of N-heterocyclic ligands (where PTP=4′-phenyl-2,2′:6′,2″-terpyridine, H3BTA=benzene-1,3,5-tricarboxylic acid, H2ODA=4,4′-oxydibenzoic acid, FTP=4′-(furan-2-yl)-2,2′:6′,2″-terpyridine). In complex 1, each BTA ligand serves as a μ3-bridge to link three Mn(II) centers, whereas each Mn(II) center is coordinated by two BTA ligands. This connection mode results in a grid sheet. Complexes 2 and 3 have very similar molecular structures with Mn(II) centers connected by ODA ligands to result in ring-like arrays. We investigated the third-order nonlinear optical (NLO) properties of the three complexes by single beam Z-scan techniques. Complexes 1–3 exhibit strong third-order NLO reverse saturable absorption with NLO absorptive indices β=1.32×10−6, 3.01×10−6, and 9.42×10−6 m W−1, respectively. In addition, complex 1 shows all excellent self-focusing effect with an NLO refractive index of γ=1.25×10−12 m2 W−1. The third-order NLO susceptibility χ(3) of the three complexes were calculated as 47.55×10−8, 4.85×10−8, and 15.16×10−8 esu, respectively.

scholarly journals EFFECT OF SIDE-CHAIN STRUCTURE ON THE THIRD-ORDER NONLINEAR OPTICAL PROPERTIES OF ACRYLATE POLYMERS

2006 ◽  
Vol 006 (3) ◽  
pp. 443-449
Author(s):  
Min FANG ◽  
Hongyao XU ◽  
Shanyi GUANG ◽  
BenZhong TANG ◽  
Minhua JIANG
Keyword(s):  
Optical Properties ◽  
Nonlinear Optical ◽  
Chain Structure ◽  
Nonlinear Optical Properties ◽  
Side Chain ◽  
Third Order ◽  
The Third ◽  
Acrylate Polymers

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.

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