Molecular nonlinear optical materials

Some organic crystalline solids that comprise highly polar molecules and that form non-centrosymmetric crystal structures exhibit second-order nonlinear optical properties and laser-damage thresholds that are potentially superior to those of currently available inorganic systems. This realization has led to a search for organic materials with improved properties and also to the consideration of organic crystals as active components in optical and optoelectronic device systems. Empirical and theoretical attempts have been made to predict novel molecules, which when synthesized might form, or be engineered to form, non-centrosymmetric crystals of even greater potential than the known systems. In parallel, efforts have been made to grow high quality, optically perfect, single crystals for the evaluation of the optical properties and device potential of this class of material. Data obtained on the resulting range of materials and crystals serve to confirm this potential.

2014 ◽  
Vol 43 (23) ◽  
pp. 8899-8904 ◽  
Author(s):  
Qi Wu ◽  
Yin Huang ◽  
Xianggao Meng ◽  
Cheng Zhong ◽  
Xingguo Chen ◽  
...  

A new compound, Cs2Hg2Br2I4·H2O, was synthesized to achieve a better balance between nonlinear optical properties and its band gap.


2007 ◽  
Vol 58 (3) ◽  
pp. 275-283 ◽  
Author(s):  
Fengxian Qiu ◽  
Hongliang Xu ◽  
Yonglin Cao ◽  
Yan Jiang ◽  
Yuming Zhou ◽  
...  

2016 ◽  
Vol 4 (38) ◽  
pp. 9094-9102 ◽  
Author(s):  
Ming Li ◽  
Hui Zhang ◽  
Yan Zhang ◽  
Baoshan Hou ◽  
Chuangyang Li ◽  
...  

Incorporation of electron-deficient benzothiadiazole as auxiliary acceptor efficiently improved the electro-optical properties of chromophores.


2014 ◽  
Vol 2 (20) ◽  
pp. 4057-4062 ◽  
Author(s):  
Yin Huang ◽  
Xianggao Meng ◽  
Pifu Gong ◽  
Lei Yang ◽  
Zheshuai Lin ◽  
...  

K2BiI5O15 and Rb2BiI5O15 are synthesized and contain a unique [I3O9]3− bridging anionic group. Their powders show phase-matchable SHG effects 3 times that of KDP and the laser damage thresholds of 84 and 72 MW cm−2, plus wide transparent range and good thermal stability.


2020 ◽  
Vol 44 (42) ◽  
pp. 18185-18198
Author(s):  
Nuthalapati Poojith ◽  
Krishna Murthy Potla ◽  
Francisco A. P. Osório ◽  
Clodoaldo Valverde ◽  
Suneetha Vankayalapati ◽  
...  

The merit of this work is that it has clearly established the structure and the nonlinear optical properties relationship of the title molecule and it could be helpful for developing new nonlinear optical materials.


1989 ◽  
Vol 166 ◽  
Author(s):  
Jacqueline M. Nicol ◽  
Terrence J. Udovic ◽  
J.J. Rush ◽  
Sherman D. Cox ◽  
Galen D. Stucky

ABSTRACTInelastic neutron scattering has been used to characterize the vibrational spectroscopy below 220 meV of para-nitroaniline adsorbed in the molecular sieve ALPO-5. Samples at loadings of both 3 and 13 weight %, which represent the onset of and the maximum in the nonlinear optical properties respectively, were studied. The torsional vibration of the amino (NH2) group has been identified at ca. 50 meV. The splitting and structure of this mode is sensitive to the loading level. This can be related to differences in the nature of the hydrogen bonding in these materials.


2017 ◽  
Vol 26 (02) ◽  
pp. 1750027 ◽  
Author(s):  
Quanjie Zhong ◽  
Shenye Liu ◽  
Jiayi Zhu ◽  
Xingzhi Wu ◽  
Lin Zhang ◽  
...  

The third-order nonlinear optical properties of the N-6-hydroxy-hexyl-4-azophenyl-carbazol have been investigated both theoretically and experimentally. Using Z-scan method with a femtosecond laser (440[Formula: see text]nm, 190[Formula: see text]fs), the third-order nonlinear optical properties of the N-6-hydroxy-hexyl-4-azophenyl-carbazol were determined. The second-order hyperpolarizability [Formula: see text] of the experiment result was found to be [Formula: see text][Formula: see text]esu. We have also calculated the second-order hyperpolarizability based on the sum-over-states (SOS) method. The theoretical value was in accord with the experiment result. The result showed that the N-6-hydroxy-hexyl-4-azophenyl-carbazol was one of the promising third-order nonlinear optical materials.


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