Novel Polydiacetylenes as Materials for Second and Third Order Nonlinear Optics.

1993 ◽  
Vol 328 ◽  
Author(s):  
W. H. Kim ◽  
C. E. Masse ◽  
B. Bihari ◽  
J. Kumar ◽  
S. K. Tripathy
Keyword(s):  
Second Order ◽  
Order Effects ◽  
Donor Group ◽  
Third Order ◽  
Nlo Properties ◽  
High Entropy ◽  
Acceptor Group ◽  
Nlo Materials ◽  
Group A ◽  
Nlo Chromophores

ABSTRACTThe objective of this investigation was to develop stable nonlinear optical (NLO) Materials which possess both second and third order NLO properties. These Materials were envisioned as having a polydiacetylene (PDA) backbone with a second order active NLO chromophoric substituent consisting of a donor group, a π-conjugated bridge, and an acceptor group. The choice of a PDA backbone in this investigation was twofold. In terms of third order NLO properties, the extensive π-conjugation of the PDA backbone leads to large ultrafast third order effects. In terms of second order NLO properties, the high thermal stability and rigidity of the PDA Matrix in a perfect polymeric single crystal is expected to prevent the randomization of the NLO chromophores in the noncentrosymmetric environment. This paper focuses on the synthesis and NLO properties of the unsymmetrical diacetylene Monomers, ((9-Butoxy carbonyl) Methyl urethanyl) -l- (4-urethanyl-4'-nitrobiphenyl) -nona-2,4-diyne, and ((9-Butoxy carbonyl) Methyl urethanyl) -l- (4-urethanyl-4'-nitroazobenzene) -nona-2,4-diyne. The high entropy flexible urethanyl side group was chosen to satisfy the monomer packing requirements for polymerization and enhance the solubility of the PDAs.

Synthesis and properties of a new second-order NLO chromophore containing the benzo[b]furan moiety for electro-optical materials

RSC Advances ◽  
2014 ◽  
Vol 4 (63) ◽  
pp. 33312-33318 ◽  
Author(s):  
Maolin Zhang ◽  
Guowei Deng ◽  
Airui Zhang ◽  
Huajun Xu ◽  
Heyan Huang ◽  
...  
Keyword(s):  
Electron Donor ◽  
Optical Materials ◽  
Furan Ring ◽  
Second Order ◽  
Donor Group ◽  
Nlo Chromophores ◽  
Furan Moiety

We have designed and synthesized a new chromophore having a 1,1,7,7-tetramethyljulolidine fused furan ring as the electron donor group to systematically investigate the role of the benzo[b]furan ring in NLO chromophores.

scholarly journals Synthesis and characterization of novel second-order NLO-chromophores bearing pyrrole as an electron donor group

Tetrahedron ◽  
2012 ◽  
Vol 68 (39) ◽  
pp. 8147-8155 ◽  
Author(s):  
M. Cidália R. Castro ◽  
M. Belsley ◽  
A. Maurício C. Fonseca ◽  
M. Manuela M. Raposo
Keyword(s):  
Electron Donor ◽  
Second Order ◽  
Synthesis And Characterization ◽  
Donor Group ◽  
Nlo Chromophores

scholarly journals 5-Arylazo-2,2´-Bithiophenes: A Novel Promising Series of NLO Chromophores

2008 ◽  
Vol 587-588 ◽  
pp. 268-272 ◽  
Author(s):  
M. Manuela M. Raposo ◽  
Ana M. Ferreira ◽  
Michael Belsley ◽  
E. de Matos Gomes ◽  
J.C.V.P. Moura
Keyword(s):  
Optical Properties ◽  
Nonlinear Optical ◽  
Second Order ◽  
Nonlinear Optical Properties ◽  
Solvatochromic Probes ◽  
Nlo Materials ◽  
Donor Acceptor ◽  
Uv Visible ◽  
Nlo Chromophores

The synthesis of 5-arylazo- substituted bithiophenes and their UV-visible, solvatochromic and nonlinear optical properties (NLO) are described. In agreement with the solvatochromic data and also with the second-order molecular NLO characterization, the new donor-acceptor systems could find application as suitable solvatochromic probes and also as new NLO materials.

Tuning Second-Order Non-linear (NLO) Optical Response of Organoimido-Substituted Hexamolybdates through Halogens: Quantum Design of Novel Organic-Inorganic Hybrid NLO Materials

2010 ◽  
Vol 63 (5) ◽  
pp. 836 ◽  
Author(s):  
Muhammad Ramzan Saeed Ashraf Janjua ◽  
Zhong-Min Su ◽  
Wei Guan ◽  
Chun-Guang Liu ◽  
Li-Kai Yan ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Phenyl Ring ◽  
Density Functional ◽  
Organic Ligand ◽  
Second Order ◽  
Inorganic Hybrid ◽  
Nlo Properties ◽  
Nlo Response ◽  
Non Linear ◽  
Nlo Materials

The second-order non-linear optical (NLO) response of organoimido-substituted hexamolybdates has been tuned from 218.61 × 10–30 to 490.10 × 10–30 esu. The dipole polarizabilities and second-order nonlinear optical (NLO) properties of organoimido derivatives of hexamolybdates have been investigated by using the time-dependent density functional response theory (TDDFT). The electron withdrawing ability of F (fluorine) has played an important role in tuning the second-order NLO response in this class of organic-inorganic hybrid compounds; particularly system 6 [Mo6O18(NC16H8F2(CF3)2I)]2– with the static second-order polarizability (βvec ) computed to be 490.10 × 10–30 esu. Thus, our studied systems have the feasibility to be excellent tuneable second-order NLO materials. The analysis of the major contributions to the βvec value suggests that the charge transfer (CT) from POM to organic ligand (D-A) along the z-axis has been enhanced with addition of F atoms at the end phenyl ring which directs head (POM) to tail (fluorinated ring) charge transfer. The computed βvec values have been tuned by incorporation of different halogen atoms at the end phenyl ring of organoimido segment. Furthermore, substitution of two trifluoromethyl (–CF3) groups sideways along with iodine (I) at the terminus of end phenyl ring in the organoimido ligand has a striking influence on tuning the optical non-linearity, as CT from POM to the organoimido ligand was significantly increased. These systematic small changes in molecular composition by substitution of different halogen groups leads to a tuning the NLO response; the so-called ‘ripple effect’ catches this point nicely. Thus, the present investigation provides thought provoking insight into the tuneable NLO properties of organoimido-substituted hexamolybdates.

New Second-Order NLO Chromophores Based on 3,3‘-Bipyridine: Tuning of Liquid Crystal and NLO Properties

2001 ◽  
Vol 13 (4) ◽  
pp. 1420-1427 ◽  
Author(s):  
Noëlla Lemaître ◽  
André-Jean Attias ◽  
Isabelle Ledoux ◽  
Joseph Zyss
Keyword(s):  
Liquid Crystal ◽  
Second Order ◽  
Nlo Properties ◽  
Nlo Chromophores

scholarly journals Two hybrid polyoxometalates constructed from Preyssler P5W30 clusters and Schiff base exhibiting interesting third-order NLO properties

RSC Advances ◽  
2017 ◽  
Vol 7 (87) ◽  
pp. 55427-55433 ◽  
Author(s):  
Jie Shi ◽  
Yao Xiong ◽  
MengJie Zhou ◽  
Lu Chen ◽  
Yan Xu
Keyword(s):  
Schiff Base ◽  
Cluster Anions ◽  
Hydrothermal Conditions ◽  
Third Order ◽  
Nlo Properties ◽  
Organic Hybrid ◽  
Nlo Materials ◽  
Two Hybrid

Two novel inorganic–organic hybrid NLO materials constructed from Preyssler-type P5W30 cluster anions and Schiff-base have been isolated under hydrothermal conditions.

Second-Order Nonlinear Optical (NLO) Properties of a Multichromophoric System Based on an Ensemble of Four Organic NLO Chromophores Nanoorganized on a Cyclotetrasiloxane Architecture

2009 ◽  
Vol 113 (7) ◽  
pp. 2745-2760 ◽  
Author(s):  
Marco Ronchi ◽  
Maddalena Pizzotti ◽  
Alessio Orbelli Biroli ◽  
Stefania Righetto ◽  
Renato Ugo ◽  
...  
Keyword(s):  
Nonlinear Optical ◽  
Second Order ◽  
Nlo Properties ◽  
Nlo Chromophores

Novel highly conjugated push–pull 4,5-diazafluoren-9-ylidene based efficient NLO chromophores as a springboard for coordination complexes with large second-order NLO properties

2012 ◽  
Vol 22 (37) ◽  
pp. 19761 ◽  
Author(s):  
Alessia Colombo ◽  
Claudia Dragonetti ◽  
Stefania Righetto ◽  
Dominique Roberto ◽  
Adriana Valore ◽  
...  
Keyword(s):  
Coordination Complexes ◽  
Second Order ◽  
Nlo Properties ◽  
Nlo Chromophores
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