Dislocations that Decrease Size Mismatch within the Lattice Leading to Ultrawide Band Gap, Large Second‐Order Susceptibility, and High Nonlinear Optical Performance of AgGaS
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ABSTRACTA convenient method of measuring the nonlinear optical properties of molecular compounds is described. The method involves measuring the quadratic electro-optical coefficient of a polymer composite containing a variable concentration of the candidate NLO material. The X(3) (ω) value obtained by this low-frequency Kerr measurement, after local-field corrections, can be compared to the nonresonant third-order susceptibility measured by degenerate-four-wave-mixing technique on selective samples. We find that the choice of the polymer matrix dictates the contribution of second-order susceptibility to the Kerr coefficient. Therefore, our method can also be extended to the measurement of second-order susceptibility, analogous to the technique of field-induced second-harmonic-generation.

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Photophysical and nonlinear optical study of benzothiazole substituted phthalocyanines in solution and thin films

Journal of Porphyrins and Phthalocyanines ◽

10.1142/s1088424617500079 ◽

2017 ◽

Vol 21 (04-06) ◽

pp. 263-272 ◽

Cited By ~ 14

Author(s):

Njemuwa Nwaji ◽

Owolabi M. Bankole ◽

Jonathan Britton ◽

Tebello Nyokong

Keyword(s):

Thin Films ◽

Nonlinear Optical ◽

Laser Excitation ◽

Optical Limiting ◽

Optical Study ◽

Optical Performance ◽

Third Order ◽

Limiting Behavior ◽

532 Nm ◽

Order Susceptibility

In this study, the photophysical, nonlinear absorption and nonlinear optical limiting properties of zinc and gallium phthalocyanine complexes: tetrakis[(benzo[d]thiazol-2-yl phenoxy)phthalocyaninato]zinc(II) (3), tetrakis[(benzo[d]thiazol-2-yl phenoxy)phthalocyaninato] gallium(III) chloride (4), tetrakis[(benzo[d]thiazol-2-ylthio)phthalocyaninato] zinc(II) (5), tetrakis[(benzo[d]thiazol-2-ylthio)phthalocyaninato] gallium(III) chloride (6), were investigated both in solution and when embedded in polystyrene thin films using 532 nm laser excitation at 10 ns pulses. It was also observed that complexes that have higher triplet state absorption also possessed enhanced nonlinear and optical limiting behavior. Superior optical performance was observed when the complexes were embedded in thin films compared to when they are in solution. Complex 6 in thin films gave the highest imaginary third-order susceptibility (I[Formula: see text][X[Formula: see text]]) and hyperpolarizability ([Formula: see text] at 4.61 × 10[Formula: see text] esu and 3.44 × 10[Formula: see text] esu, respectively, with a low I[Formula: see text] value of 0.06 J.cm[Formula: see text]

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FTC-containing molecules: large second-order nonlinear optical performance and excellent thermal stability, and the key development of the “Isolation Chromophore” concept

Journal of Materials Chemistry C ◽

10.1039/c6tc04282a ◽

2016 ◽

Vol 4 (48) ◽

pp. 11474-11481 ◽

Cited By ~ 11

Author(s):

Pengyu Chen ◽

Xiuyang Yin ◽

Yujun Xie ◽

Shufang Li ◽

Shiyu Luo ◽

...

Keyword(s):

Thermal Stability ◽

Nonlinear Optical ◽

Second Order ◽

Optical Performance ◽

Excellent Thermal Stability ◽

Extended Application

The extended application of the concept of “Isolation Chromophore” produced a d33 value of 384 pm V−1 @ 1950 nm.

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Thieno [2,3-b] indole-based second-order nonlinear optical chromophores with high thermal stability and good nonlinear optical performance

Materials Letters ◽

10.1016/j.matlet.2021.130959 ◽

2022 ◽

Vol 307 ◽

pp. 130959

Author(s):

Lingxiao Song ◽

Hui Zhang ◽

Xiaoyu Shi ◽

Jie Zhang ◽

Kexin Wang ◽

...

Keyword(s):

Thermal Stability ◽

Nonlinear Optical ◽

Second Order ◽

High Thermal Stability ◽

Optical Performance ◽

Nonlinear Optical Chromophores ◽

Optical Chromophores

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Main chain dendronized hyperbranched polymers: convenient synthesis and good second-order nonlinear optical performance

Polymer Chemistry ◽

10.1039/c5py00376h ◽

2015 ◽

Vol 6 (24) ◽

pp. 4396-4403 ◽

Cited By ~ 14

Author(s):

Wenbo Wu ◽

Zhipeng Wang ◽

Rui Xiao ◽

Zhen Xu ◽

Zhen Li

Keyword(s):

Nonlinear Optical ◽

Main Chain ◽

Hyperbranched Polymers ◽

Second Order ◽

Optical Performance ◽

One Pot ◽

Convenient Synthesis

By using low generation dendrimers as macromonomers, two main chain dendronized hyperbranched polymers, with good comprehensive nonlinear optical performance, were prepared conveniently with satisfying yields through a one-pot “A3 + B2” approach.

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