Asymmetrical Diphenylpolyene Pendant Polymers for Nonlinear Optical Activity

1990 ◽  
Vol 214 ◽  
Author(s):  
Linda S. Sapochak ◽  
David W. Polis ◽  
Larry R. Dalton ◽  
Charles W. Spangler
Keyword(s):  
Nonlinear Optical ◽  
Second Harmonic ◽  
Damage Threshold ◽  
Laser Damage Threshold ◽  
Device Development ◽  
High Laser ◽  
Nlo Materials ◽  
Donor Acceptor ◽  
Recent Activity ◽  
Preliminary Study

ABSTRACTRecent activity in the development of nonlinear optical (NLO) materials with high second order susceptibilities has prompted the development of a wide variety of pendant polymers which possess desirable properties for device development, including high Tg minimal relaxation of the poled matrix, and high laser damage threshold. Ideal candidates for such systems are asymmetrically substituted oligomers of polyacetylenes such as dimethylaminonitrostilbene (DANS) and corresponding higher order oligomers. We report here a preliminary study of the synthesis of asymmetrically substituted donor/acceptor diphenyl-capped polyenes and thienylene vinylene oligomers attached as pendant moieties on polyvinylphenol (PVP) for second harmonic generation.

Mn-Based tin sulfide Sr3MnSn2S8 with a wide band gap and strong nonlinear optical response

2019 ◽  
Vol 7 (5) ◽  
pp. 1146-1150 ◽  
Author(s):  
Chuang Liu ◽  
Dajiang Mei ◽  
Wangzhu Cao ◽  
Yi Yang ◽  
Yuandong Wu ◽  
...  
Keyword(s):  
Band Gap ◽  
Nonlinear Optical ◽  
Second Harmonic ◽  
Damage Threshold ◽  
Wide Band ◽  
Laser Damage Threshold ◽  
Tin Sulfide ◽  
Nonlinear Optical Material ◽  
Wide Band Gap ◽  
High Laser

The new nonlinear optical material Sr3MnSn2S8 is a noncentrosymmetric structure with a large band gap of 3.02 eV. In addition, Sr3MnSn2S8 possesses a good second harmonic generation (SHG) response, approximately equivalent to that of AgGaS2, and a high laser damage threshold (LDT) about 3 times that of AgGaS2 (AGS).

scholarly journals Excellent Infrared Nonlinear Optical Crystals BaMO(IO3)5 (M = V, Ta) Predicted by First Principle Calculations

Materials ◽  
2018 ◽  
Vol 11 (10) ◽  
pp. 1809 ◽  
Author(s):  
Yingfeng Li ◽  
Mengqi Cui ◽  
Hejin Yan ◽  
Yangxin Yu ◽  
Meicheng Li ◽  
...  
Keyword(s):  
Band Gap ◽  
Nonlinear Optical ◽  
Second Harmonic ◽  
Damage Threshold ◽  
Laser Damage Threshold ◽  
First Principle ◽  
Nonlinear Optical Crystals ◽  
First Principle Calculations ◽  
Optical Crystals ◽  
Nlo Materials

Two nonlinear optical crystals, BaVO(IO3)5 and BaTaO(IO3)5, are designed by substituting Nb with V and Ta, respectively, in BaNbO(IO3)5, which is itself a recently synthesized infrared nonlinear optical (NLO) material. The designs of BaVO(IO3)5 and BaTaO(IO3)5 from BaNbO(IO3)5 are based on the following motivation: BaVO(IO3)5 should have a larger second-harmonic generation (SHG) coefficient than BaNbO(IO3)5, as V will result in a stronger second-order Jahn-Teller effect than Nb due to its smaller ion radius; at the same time, BaTaO(IO3)5 should have a larger laser-damage threshold, due to the fact that Ta has a smaller electronegativity leading to a greater band-gap. Established on reliable first-principle calculations, it is demonstrated that BaVO(IO3)5 has a much larger SHG coefficient than BaNbO(IO3)5 (23.42 × 10−9 vs. 18.66 × 10−9 esu); and BaTaO(IO3)5 has a significantly greater band-gap than BaNbO(IO3)5 (4.20 vs. 3.55 eV). Meanwhile, the absorption spectra and birefringences of both BaVO(IO3)5 and BaTaO(IO3)5 are acceptable for practice, suggesting that these two crystals can both be expected to be excellent infrared NLO materials.

Li2ZnGeS4: a promising diamond-like infrared nonlinear optical material with high laser damage threshold and outstanding second-harmonic generation response

2019 ◽  
Vol 48 (14) ◽  
pp. 4484-4488 ◽  
Author(s):  
Yi Huang ◽  
Kui Wu ◽  
Jianian Cheng ◽  
Yu Chu ◽  
Zhihua Yang ◽  
...  
Keyword(s):  
Harmonic Generation ◽  
Nonlinear Optical ◽  
Second Harmonic ◽  
Damage Threshold ◽  
Optical Material ◽  
Laser Damage Threshold ◽  
Laser Damage ◽  
Optical Performance ◽  
Nonlinear Optical Material ◽  
High Laser

A promising IR nonlinear optical material Li2ZnGeS4 with a diamond-like configuration and high optical performance is reported.

First-principles study of intrinsic point defects in MgSiAs2

2019 ◽  
Vol 21 (9) ◽  
pp. 5295-5304
Author(s):  
P. Tuo ◽  
B. C. Pan
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Point Defects ◽  
First Principles ◽  
Nonlinear Optical ◽  
Second Harmonic ◽  
Damage Threshold ◽  
Laser Damage Threshold ◽  
Laser Damage ◽  
High Laser

MgSiAs2 is a potential infrared-nonlinear optical (IR-NLO) material, due to its fine second harmonic generation (SHG) performance and high laser damage threshold (LDT).

Pb7F12Cl2: a promising infrared nonlinear optical material with high laser damage threshold

2019 ◽  
Vol 48 (36) ◽  
pp. 13529-13535 ◽  
Author(s):  
Qi Wu ◽  
Xian Liu ◽  
Fei Liang ◽  
Siran Xu ◽  
Hongbing Pi ◽  
...  
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Nonlinear Optical ◽  
Second Harmonic ◽  
Damage Threshold ◽  
Laser Damage Threshold ◽  
Laser Damage ◽  
Nonlinear Optical Material ◽  
High Laser ◽  
First Time

This study reports, for the first time, the second-harmonic generation (SHG) property of Pb7F12Cl2 as a promising infrared nonlinear optical (NLO) material.

Optimized Growth and the Anisotropic Properties of the Nonlinear Optical Crystal Li2ZrTeO6

CrystEngComm ◽  
2021 ◽  
Author(s):  
Xiaojie Guo ◽  
Zeliang Gao ◽  
Fuan Liu ◽  
Xiaoli Du ◽  
Xiangmei Wang ◽  
...  
Keyword(s):  
Nonlinear Optical ◽  
Damage Threshold ◽  
Transparency Window ◽  
Laser Damage Threshold ◽  
Laser Damage ◽  
Nonlinear Optical Crystal ◽  
Anisotropic Properties ◽  
High Laser ◽  
Optical Crystal

The Li2ZrTeO6 crystal has been proved as a novel nonlinear optical crystal with high laser-damage threshold (>1.3 GW cm-2) and wide transparency window. However, the investigation of the anisotropic properties...

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