Towards a Structure-Rsa Relationship for Non-Linear Optical Materials.

1994 ◽  
Vol 374 ◽  
Author(s):  
G. S. Bahra ◽  
J. Griffiths ◽  
W. Healy ◽  
V. Millar ◽  
S. J. Till ◽  
...  
Keyword(s):  
Electronic Structures ◽  
Quantum Chemical ◽  
Optical Materials ◽  
Saturable Absorption ◽  
Reverse Saturable Absorption ◽  
Non Linear ◽  
Chemical Techniques ◽  
Linear Optical ◽  
Semi Empirical

AbstractMeasurements on the reverse saturable absorption (RSA) properties of some polyene dyes are presented. For a series of linear dyes, a correlation is observed between the symmetry of a molecule and its ability to exhibit RSA. To our knowledge, this is the first structure-RSA relationship discovered to date.Certain of these materials have been studied with semi-empirical quantum chemical techniques and the observed structure-RSA relationship is rationalised in terms of the calculated electronic structures. In this paper, we report primarily on some studies we have carried out on the linear dye systems.

Conjugated push-pull salts derived from linear benzobisthiazole: preparation and optical properties

2013 ◽  
Vol 67 (1) ◽  
Author(s):  
Alexandra Čibová ◽  
Peter Magdolen ◽  
Andrea Fülöpová ◽  
Pavol Zahradník
Keyword(s):  
Optical Properties ◽  
Benzene Ring ◽  
Quantum Chemical ◽  
Optical Materials ◽  
Chemical Structure ◽  
Non Linear ◽  
Linear Optical Properties ◽  
Linear Optical ◽  
New Compounds ◽  
Semi Empirical

AbstractA series of novel monomethylated salts derived from linear benzobisthiazole was prepared. The push-pull attributes of these new compounds are represented by a quaternised azolium cycle as the acceptor part at one end of the structure and the dialkylamino- or diarylamino-substituted benzene ring as the donor part at the opposite end. Both moieties are connected by a conjugated linker consisting of one or two double bonds. Such dipolar structures are promising candidates for non-linear optical materials. The quantum-chemical indices describing linear and non-linear optical properties were obtained from semi-empirical calculations. The relationships between the chemical structure and non-linear optical properties of the cations studied were obtained. Effective conjugation was confirmed by measuring the optical properties in the UV-VIS region.

Oligomers containing carbocyanine/flexible chain segments as non-linear optical materials

Polymer ◽  
1991 ◽  
Vol 32 (8) ◽  
pp. 1369-1375 ◽  
Author(s):  
Luping Yu ◽  
Mai Chen ◽  
Larry R. Dalton
Keyword(s):  
Optical Materials ◽  
Flexible Chain ◽  
Non Linear ◽  
Linear Optical

Designing a new class of excess electron compounds with unique electronic structures and extremely large non-linear optical responses

2020 ◽  
Vol 44 (16) ◽  
pp. 6411-6419
Author(s):  
Xiang-Hui Li ◽  
Li Zhang ◽  
Xiao-Ling Zhang ◽  
Bi-Lian Ni ◽  
Chun-Yan Li ◽  
...  
Keyword(s):  
Electronic Structures ◽  
Excess Electron ◽  
New Class ◽  
Optical Responses ◽  
Non Linear ◽  
Linear Optical ◽  
Electron Compounds

New Ca+-1-M′− (M′ = Li, Na, and K) compounds with typical alkalide features and electride-like characteristics have been obtained.

The Electronic and Non-linear Optical Properties of Oxo-titanium Phthalocyanines

1999 ◽  
Vol 03 (05) ◽  
pp. 331-338 ◽  
Author(s):  
FRYAD HENARI ◽  
ANDREW DAVEY ◽  
WERNER BLAU ◽  
P. HAISCH ◽  
M. HANACK
Keyword(s):  
Optical Properties ◽  
Electronic Properties ◽  
Quantum Chemical Calculations ◽  
Quantum Chemical ◽  
Dipole Moments ◽  
Non Linear ◽  
Linear Behaviour ◽  
Linear Optical Properties ◽  
Linear Optical ◽  
Semiempirical Quantum Chemical Calculations

The valence electronic properties of some unsubstituted and peripherally substituted oxo-titanium phthalocyanines are reported. Semiempirical quantum chemical calculations show that the nature of peripheral substituents has a strong bearing on the valence electronic properties, including the state dipole moments and absorption wavelength. The non-linear optical response was measured around the the Q-band resonance. The effect of different substituents and substitution patterns on the non-linear behaviour of the samples was determined. The combined results suggest that tuning of electronic and optical properties is effectively achieved by functionalization of the edges of the conjugated ring.

Non-linear optical materials and applications

1993 ◽  
Vol 9 (2-3) ◽  
pp. 53-139 ◽  
Author(s):  
Y. Fainman ◽  
J. Ma ◽  
S.H. Lee
Keyword(s):  
Optical Materials ◽  
Non Linear ◽  
Linear Optical
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