Dendronlike Main-Chain Nonlinear Optical (NLO) Polyurethanes Constructed from “H”-Type Chromophores: Synthesis and NLO Properties

2009 ◽  
Vol 1 (4) ◽  
pp. 856-863 ◽  
Author(s):  
Zhong’an Li ◽  
Wenbo Wu ◽  
Gui Yu ◽  
Yunqi Liu ◽  
Cheng Ye ◽  
...  
Keyword(s):  
Nonlinear Optical ◽  
Main Chain ◽  
Nlo Properties

Synthesis and Optical Properties of Copolymeres Bisphenol A and D-Π-A Chromophores

2014 ◽  
Vol 665 ◽  
pp. 292-295
Author(s):  
Ming Feng Fang ◽  
Chun Meng Pan ◽  
Chen Wang ◽  
Guo Yuan Lu
Keyword(s):  
Thermal Stability ◽  
Bisphenol A ◽  
Nonlinear Optical ◽  
Main Chain ◽  
Uv Spectra ◽  
Mitsunobu Reaction ◽  
Nlo Properties ◽  
Good Solubility ◽  
Linear And Nonlinear ◽  
Nonlinear Optical Coefficient

A series of optical polymeres were prepared by a Mitsunobu reaction from the correspondingN,N-dihydroxyethyl D-π-A chromophores and bisphenol A, which is new main-chain copolymeres with good solubility in ordinary organic solvents. The linear and nonlinear optical (NLO) properties were investigated by UV spectra and NLO measurements. The results indicate that the films of copolymeres exhibit a higher macroscopic second nonlinear optical coefficient, thermal stability and good optical transparency.

scholarly journals DFT study of superhalogen and superalkali doped graphitic carbon nitride and its non-linear optical properties

RSC Advances ◽  
2021 ◽  
Vol 11 (14) ◽  
pp. 7779-7789 ◽  
Author(s):  
Asmat Ullah Khan ◽  
Rasheed Ahmad Khera ◽  
Naveed Anjum ◽  
Rao Aqil Shehzad ◽  
Saleem Iqbal ◽  
...  
Keyword(s):  
Optical Properties ◽  
Dft Calculations ◽  
Nonlinear Optical ◽  
Carbon Nitride ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Dft Study ◽  
Nlo Properties ◽  
Non Linear ◽  
Linear Optical Properties

DFT calculations are carried out to investigate nonlinear optical (NLO) properties of superhalogen (BCl4) and superalkali (NLi4) doped graphitic carbon nitride (GCN).

Colloidal semiconductor nanocrystals: synthesis, optical nonlinearity, and related device applications

2021 ◽  
Author(s):  
Min Li ◽  
Cong Wang ◽  
Lude Wang ◽  
Han Zhang
Keyword(s):  
Nonlinear Optical ◽  
Rapid Development ◽  
Semiconductor Nanocrystals ◽  
Optical Nonlinearity ◽  
Photonic Devices ◽  
Nlo Properties ◽  
Novel Materials ◽  
Colloidal Semiconductor Nanocrystals ◽  
Device Applications ◽  
Colloidal Semiconductor

The rapid development of photonic devices requires the exploration of novel materials with superior nonlinear optical (NLO) properties. Colloidal semiconductor nanocrystals (NCs) exhibit size-tunable exciton resonances and excellent NLO properties....

Optical, electrochemical and third-order nonlinear optical studies of triphenylamine substituted zinc phthalocyanine

2016 ◽  
Vol 20 (08n11) ◽  
pp. 1173-1181 ◽  
Author(s):  
Narra Vamsi Krishna ◽  
Puliparambil Thilakan Anusha ◽  
S. Venugopal Rao ◽  
L. Giribabu
Keyword(s):  
Nonlinear Optical ◽  
Emission Spectra ◽  
Optical Emission ◽  
Soret Band ◽  
Laser Pulses ◽  
Zinc Phthalocyanine ◽  
Third Order ◽  
Time Resolved ◽  
Nlo Properties ◽  
Scan Data

Zinc phthalocyanine possessing triphenylamine at its peripheral position has been synthesized and its optical, emission, electrochemical and third-order nonlinear optical (NLO) properties were investigated. Soret band was broadened due to the presence of triphenylamine moiety. Electrochemical properties indicated that both oxidation and reduction processes were ring centered. Emission spectra were recorded in different solvents and the fluorescence yields obtained were in the range of 0.02–0.17 while the time-resolved fluorescence data revealed radiative lifetimes of typically few ns. Third-order NLO properties of this molecule have been examined using the Z-scan technique with picosecond (ps) and femtoseocnd (fs) pulses. Closed and open aperture Z-scan data were recorded with 2 ps/1 50 fs laser pulses at a wavelength of 800 nm and NLO coefficients were extracted from both the data. Our data clearly suggests the potential of this molecule for photonics applications.

THE INVESTIGATION OF ELECTRONIC PROPERTIES AND MICROSCOPIC SECOND-ORDER NONLINEAR OPTICAL BEHAVIOR OF 1-SALICYLIDENE-3-THIO-SEMICARBAZONE

2007 ◽  
Vol 16 (01) ◽  
pp. 91-99 ◽  
Author(s):  
ASLI KARAKAS ◽  
HUSEYIN UNVER ◽  
AYHAN ELMALI
Keyword(s):  
Molecular Orbital ◽  
Electronic Transition ◽  
Nonlinear Optical ◽  
Dipole Moments ◽  
Empirical Method ◽  
Second Order ◽  
Nlo Properties ◽  
Calculation Results ◽  
Moller Plesset ◽  
Semi Empirical

To investigate the microscopic second-order nonlinear optical (NLO) behavior of the 1-salicylidene-3-thio-semicarbazone Schiff base compound, the electric dipole moments (μ), linear static polarizabilities (α) and first static hyperpolarizabilites (β) have been calculated using finite field second-order Møller-Plesset perturbation (FF MP2) theory. The ab-initio results on (hyper)polarizabilities show that the investigated molecule might have microscopic NLO properties with non-zero values. To understand the NLO behavior in the context of molecular orbital structure, we have also examined the highest occupied molecular orbital (HOMO), the lowest unoccupied molecular orbital (LUMO) and the HOMO-LUMO gap in the same theoretical framework as the (hyper)polarizability calculations. In addition to the NLO properties, the electronic transition spectra have been computed using a semi-empirical method (ZINDO). ZINDO calculation results show that the electronic transition wavelengths have been estimated to be shorter than 400 nm.

New main chain nonlinear optical polymers with high glass transition temperatures

1992 ◽  
Vol 28 (4) ◽  
pp. 381-388 ◽  
Author(s):  
Michael A. Mitchell ◽  
James E. Mulvaney ◽  
H. K. Hall ◽  
Craig S. Willand ◽  
Hillary Hampsch ◽  
...  
Keyword(s):  
Glass Transition ◽  
Nonlinear Optical ◽  
Main Chain ◽  
Transition Temperatures ◽  
Optical Polymers ◽  
Glass Transition Temperatures ◽  
Nonlinear Optical Polymers

Synthesis, Crystal Structures, and Nonlinear Optical (NLO) Properties of New Schiff-Base Nickel(II) Complexes. Toward a New Type of Molecular Switch?

2005 ◽  
Vol 44 (6) ◽  
pp. 1973-1982 ◽  
Author(s):  
Jean Pierre Costes ◽  
Jean François Lamère ◽  
Christine Lepetit ◽  
Pascal G. Lacroix ◽  
Françoise Dahan ◽  
...  
Keyword(s):  
Schiff Base ◽  
Crystal Structures ◽  
Nonlinear Optical ◽  
Molecular Switch ◽  
Nlo Properties ◽  
New Type

Polymers containing nonlinear optical groups in the main chain. Second harmonic generation in corona poled thin films

1993 ◽  
Vol 29 (7) ◽  
pp. 981-986 ◽  
Author(s):  
G. S'heeren ◽  
A. Persoons ◽  
H. Bolink ◽  
M. Heylen ◽  
M. Van Beylen ◽  
...  
Keyword(s):  
Thin Films ◽  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Nonlinear Optical ◽  
Main Chain ◽  
Second Harmonic

Main-Chain Nonlinear Optical Polymers with Enhanced Orientational Stability

1998 ◽  
Vol 31 (22) ◽  
pp. 7676-7681 ◽  
Author(s):  
Martin Döbler ◽  
Christoph Weder ◽  
Oscar Ahumada ◽  
Peter Neuenschwander ◽  
Ulrich W. Suter ◽  
...  
Keyword(s):  
Nonlinear Optical ◽  
Main Chain ◽  
Optical Polymers ◽  
Nonlinear Optical Polymers
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