scholarly journals Novel ultraviolet (UV) nonlinear optical (NLO) materials discovered by chemical substitution-oriented design

2020 ◽  
Vol 11 (21) ◽  
pp. 5404-5409 ◽  
Author(s):  
Guohong Zou ◽  
Kang Min Ok
Keyword(s):  
Solid State ◽  
High Performance ◽  
Nonlinear Optical ◽  
Chemical Substitution ◽  
Nlo Materials ◽  
Solid State Materials

A brief introduction to chemical substitution-oriented design to discover high performance ultraviolet (UV) nonlinear optical (NLO) solid state materials is presented.

scholarly journals Langasite Family Midinfrared Nonlinear Optical Oxide Materials: Structure, Property, and Applications

2017 ◽  
Vol 2017 ◽  
pp. 1-13 ◽  
Author(s):  
Haichao Lan ◽  
Fei Liang ◽  
Zheshuai Lin ◽  
Haohai Yu ◽  
Huaijin Zhang ◽  
...  
Keyword(s):  
Experimental Data ◽  
Metal Oxides ◽  
High Performance ◽  
Nonlinear Optical ◽  
Damage Threshold ◽  
Laser Damage Threshold ◽  
Laser Damage ◽  
Oxide Materials ◽  
Structure Property ◽  
Nlo Materials

Midinfrared (IR) nonlinear optical (NLO) materials with high performance are vital in important technological applications in many civil and military fields. Very recently, langasite family compounds have attracted much attention due to their wide transparency to mid-IR region and ultrahigh laser damage threshold (LDT). In this brief review, three important compounds—LGS, LGN, and LGT—are investigated and analyzed based on available experimental data. The electrooptical (EO) Q-switch and mid-IR OPO applications are summarized in detail. Finally, promising search directions for new metal oxides that have good mid-IR NLO performances are discussed.

Designing nonlinear optical molecule by incorporating the planar tetracoordinate unit NAl4- or CAl42- into decaborane B10H14

2014 ◽  
Vol 13 (05) ◽  
pp. 1450042
Author(s):  
Fang Ma ◽  
Ti-Fang Miao ◽  
Ying-Tao Liu
Keyword(s):  
High Performance ◽  
Nonlinear Optical ◽  
Bonding Interaction ◽  
Boron Chemistry ◽  
Important Approach ◽  
Nlo Materials ◽  
Moller Plesset ◽  
Molecular Orbital Analysis ◽  
Borane Cluster ◽  
Atomic Radii

Molecular Incorporation is an important approach of providing novel compounds with fascinating structures. In this paper, we theoretically described the incorporation of the central planar tetracoordinate molecules NAl 4- or CAl 42- into borane cluster B 10 H 14. By molecular orbital analysis, a novel four-fold Al – H bonding interaction was found, and it contributes to the molecular incorporation. In addition, we found that the counterion Li + is critical for the neutral incorporation species, due to its small atomic radii and little positive charge. To measure the nonlinear optical (NLO) response, the static first hyperpolarizabilities (β0) were evaluated at the second-order Møller–Plesset (MP2) level. The β0 values are 1708 a.u and 8682 a.u for [ B 10 H 14⋯ NAl 4]- and [ B 10 H 14⋯ CAl 4]2-, respectively, which indicates that the charge plays a significant role on deciding the value of β0. Moreover, it is different for the change of β0 value brought by counterion Li +. Li + decreases the β0 value of [ B 10 H 14⋯ CAl 4]2-, while it increases the β0 value of [ B 10 H 14⋯ NAl 4]-, therein, the sandwich-like B 10 H 14– Li – NAl 4( I ) exhibits considerable β0 value (31,253 a.u.). This reveals that it is possible to explore high-performance NLO materials based on suitable molecular incorporation. Besides, the present study is also expected to enrich the knowledge of the planar tetracoordinate carbon chemistry and boron chemistry.

Ultra-High-Tg Chromophoric Polyimides and Polyureas as High-Performance Nonlinear Optical Materials

1995 ◽  
Vol 413 ◽  
Author(s):  
Lifeng Geng ◽  
Jiafu Wang ◽  
Tobin J. Marks ◽  
Weiping Lin ◽  
Haitian Zhou ◽  
...  
Keyword(s):  
Optical Materials ◽  
High Performance ◽  
Nonlinear Optical ◽  
Second Order ◽  
Nonlinear Optical Materials ◽  
Careful Attention ◽  
Nlo Materials ◽  
Nlo Chromophores ◽  
Diallylbisphenol A ◽  
Aging In Air

ABSTRACTThree approaches to the construction of high-Tg polyimides and polyureas as second-order NLO materials are discussed. In the first approach, copolymerization of bismaleimides with o,o‚-diallylbisphenol-A followed by functionalization with high-β NLO chromophores using a Mitsunobu procedure yields, after poling and curing, a series of heavily crosslinked chromophoric polyimides with Tg values as high as 320°C and partially resonant χ(2) responses as high as 1.0×10-7 esu (42 pm/V at 1064 nm, 1.17 eV). In the second two approaches, copolymerization of the chromophore 4,5-bis(4‚-aminophenyl)-2-(4„- nitrophenyl)imidazole with bismaleimides or diisocyanates yields polyimides and polyureas with Tg values as high as 292°C and partially resonant χ(2)values as high as 0.62× 10-7 esu(25 pm/V at 1064 nm). It is found that careful attention to the details of curing and crosslinking during poling results in NLO- active matrices exhibiting negligible decay in ( on aging in air at 100°C for periods of 1,000-4,000 h. The imidazole based materials exhibit only about 10% χ(2) decay on aging for 100 h at 200°C under N2.

scholarly journals A Theoretical Perspective on Strategies for Modeling High Performance Nonlinear Optical Materials

2021 ◽  
Vol 8 ◽  
Author(s):  
Rehana Bano ◽  
Maria Asghar ◽  
Khurshid Ayub ◽  
Tariq Mahmood ◽  
Javed Iqbal ◽  
...  
Keyword(s):  
Nonlinear Optics ◽  
High Performance ◽  
Nonlinear Optical ◽  
Materials Science ◽  
Theoretical Perspective ◽  
Research Work ◽  
Large Area ◽  
Excess Electrons ◽  
Potential Applications ◽  
Nlo Materials

Nonlinear optical (NLO) materials have spanned a large area of science and technology owning to their potential applications in optoelectronics. The invention of the first Ruby laser has sparked a fresh interest in the area of nonlinear optics. The computational designing and experimental synthesis of organic and inorganic NLO materials with higher order nonlinearities come into vogue in the field of materials science. To date, several strategies including metal ligand framework, push pull mechanism, diradical character, and so on have been devised to enhance the NLO response of materials. In addition, introduction of diffuse excess electrons is an efficient approach to design noncentrosymmetric materials for nonlinear optics. The current review highlights a systematic array of different computational studies (covering the last decade of intensive research work) for the theoretical designing of NLO materials. In the present review, theoretical designing from the simplest NLO material to the complex alkali, alkaline earth, transition, and superalkali doped nanomaterials is summarized. The emergence of excess electrons strategy has played a pivotal role in enhancing the NLO properties especially hyperpolarizabilities. We expect that this review will provide a better understanding of the NLO responses of nanoclusters, paving the way for the advancement of hi-tech NLO materials to meet the real challenges in optoelectronics.

An organic–inorganic hybrid co-crystal complex as a high-performance solid-state nonlinear optical switch

2016 ◽  
Vol 4 (2) ◽  
pp. 266-271 ◽  
Author(s):  
Tianliang Chen ◽  
Zhihua Sun ◽  
Sangen Zhao ◽  
Chengmin Ji ◽  
Junhua Luo
Keyword(s):  
Solid State ◽  
High Performance ◽  
Nonlinear Optical ◽  
Optical Switch ◽  
Optical Performance ◽  
Inorganic Hybrid ◽  
Crystal Complex ◽  
High Repeatability

An organic–inorganic hybrid co-crystal complex exhibits an attractive switching nonlinear optical performance with a superior contrast and high repeatability.

A Theoretical Investigation on Second-Order NLO Properties of Organic Substitutions of [Mo6O19]2- and [MoW5O19]2-

2019 ◽  
Vol 960 ◽  
pp. 268-273
Author(s):  
Qi Li ◽  
Xiu Hua Yuan
Keyword(s):  
Molecular Structure ◽  
High Performance ◽  
Density Functional ◽  
Nonlinear Optical ◽  
Second Order ◽  
Functional Theory ◽  
Nlo Properties ◽  
Potential Applications ◽  
Nlo Materials ◽  
Different Parts

In this study, density functional theory (DFT) was used to calculate second-order polarizabilities and second-order polarizabilities densities of a series of organic substitution for Lindqvist-type polyoxometalates (POMs), and the nonlinear optical (NLO) properties was also analyzed. We found that βzzz has the main contribution to β value. The expansion of molecular structure on z-axis greatly increased second-order polarizabilities. Both the size of the organic segments and metal hybridization exert an influence on β value. The analysis on the second-order polarizabilities density is used to explain the NLO phenomenon. In the present investigation, metal hybridization and π-conjugation changed the contribution of βzzz value from different parts. The results of this work will contribute to the potential applications in high-performance NLO materials.

Photoresponsive Frameworks: Energy Transfer in the Spotlight

2021 ◽  
Author(s):  
Corey R. Martin ◽  
Kyoung Chul Park ◽  
Ryan E. Corkill ◽  
Preecha Kittikhunnatham ◽  
Gabrielle A. Leith ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Solid State ◽  
Covalent Organic Frameworks ◽  
Photochromic Behavior ◽  
Solid State Materials

In this paper, spiropyran-containing metal- and covalent-organic frameworks (MOFs and COFs, respectively) are probed as platforms for fostering photochromic behavior in solid-state materials while simultaneously promoting directional energy transfer (ET)....

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