Second-harmonic generation from corona-poled synthetic polypeptides containing disperse red-1 side chains

1993 ◽  
Author(s):  
Zbigniew Tokarski ◽  
Bob L. Epling ◽  
Edward T. Samulski ◽  
Timothy M. Grinstead ◽  
Thomas M. Cooper ◽  
...  
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Side Chains ◽  
Synthetic Polypeptides ◽  
Disperse Red 1

scholarly journals Optical Second Harmonic Generation Study of a Rubbed Polyimide Film Containing Steroidal Structure Side Chains

2017 ◽  
Vol 15 (0) ◽  
pp. 7-12 ◽  
Author(s):  
Muhammad Samir Ullah ◽  
Shohei Asai ◽  
Yousuke Inomata ◽  
Khuat Thi Thu Hien ◽  
Goro Mizutani ◽  
...  
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Polyimide Film ◽  
Side Chains ◽  
Optical Second Harmonic Generation

Second harmonic characteristics of Disperse Red 1 doped polysulfones

1995 ◽  
Vol 10 (11) ◽  
pp. 2693-2696 ◽  
Author(s):  
Sze Keung Lor ◽  
Hiroyuki Hiraoka ◽  
Ping Yu ◽  
Lap-Tak Cheng ◽  
George K.L. Wong
Keyword(s):  
Glass Transition ◽  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Optical Materials ◽  
Guest Molecule ◽  
Second Harmonic ◽  
Host Material ◽  
Good Resistance ◽  
Film Forming ◽  
Disperse Red 1

Polysulfones, such as poly(oxy-1,4-phenylenesulfonyl-1,4-phenyleneoxy-1,4-phenyleneisopropylid-ene-1,4-phenylene), poly(phenylene ether sulfone), poly(phenylene sulfone), and aliphatic polysulfone, poly(bicycloheptene sulfone), were employed as a host resin. N-ethyl-N-hydroxyethyl-4-(4'-nitrophenylazo)phenylamine (Disperse Red 1) acted as a guest molecule and was dispersed in those hosts with a concentration of 5 wt. % to 10 wt.%. Their second harmonic generation properties were characterized and compared. Xijk values obtained varied from 11 pm/V to 21 pm/V. The merits of polysulfones as a host material are good optical clarity, easy film forming, and fairly high glass transition Tg temperature (140 °C to 190 °C). Chemically, compared to polyimides they have good resistance to moisture, i.e., less vulnerable to hydrolysis. It is a good candidate for electro-optical materials.

Influence of TiO2 on Second Harmonic Generation in Disperse Red -1 doped Organic-Inorganic Hybrid Thin Films

2007 ◽  
Vol 1015 ◽  
Author(s):  
Congji Zha ◽  
Xinshi Luo ◽  
Anna Samoc ◽  
Andrei Rode ◽  
Barry Luther-Davies
Keyword(s):  
Thin Films ◽  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Hybrid Polymer ◽  
Organic Hybrid ◽  
Cross Linkage ◽  
Hybrid Thin Films ◽  
Disperse Red 1 ◽  
The Stability

AbstractDisperse Red 1 (DR1) doped TiO2-SiO2 inorganic-organic hybrid polymers were prepared by an anhydrous sol-gel process and second harmonic generation (SHG) of the fundamental 1053nm in these polymeric thin films was measured using Maker-fringe method. The nonlinear optical activity of DR1 in the thin films was studied by corona poling at different temperature (from room temperature to 140°C), and the stability of SHG after switching off corona power was evaluated by analyzing the SHG decay dynamics. Experimental results showed that the stability of the SHG of DR1 significantly increases with the cross-linkage degree of the TiO2SiO2 hybrid polymer network, and that the second harmonic coefficient d33 increases as the DR1 concentration increases. TiO2-doping can promote the polymerization of unsaturated C=C double bonds in the hybrid thin films during in-situ hot poling, enhancing the cross-linkage of the network of the hybrid material, and resulting in a great improvement of the stability of SHG. The excellent stability of second harmonic generation in the hybrid polymer thin films suggests that TiO2-doped inorganic-organic hybrid polymer is promising for chromophore doping for nonlinear optical applications.

Second-harmonic generation from liquid crystalline siloxane materials containing disperse red-1 pendant groups

1993 ◽  
Author(s):  
Zbigniew Tokarski ◽  
Bob L. Epling ◽  
Timothy J. Bunning ◽  
Laura S. McGivern ◽  
Robert L. Crane
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Liquid Crystalline ◽  
Second Harmonic ◽  
Disperse Red 1

Molecular Design of Synthetic Polypeptides for Nonlinear Optics

1989 ◽  
Vol 175 ◽  
Author(s):  
T. Ishii ◽  
T. Wada ◽  
A. F. Garito ◽  
H. Sasabe ◽  
A. Yamada
Keyword(s):  
Dipole Moment ◽  
Nonlinear Optics ◽  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Main Chain ◽  
Molecular Design ◽  
Second Harmonic ◽  
Permanent Dipole Moment ◽  
Carbonyl Groups ◽  
Synthetic Polypeptides

AbstractSecond order molecular susceptibilities β of poly(γ – benzyl L–glutamate)(PBLG) and poly(γ – p–nitrobenzyl L–glutamate) (PNBLG) were determined by means of dc-induced second harmonic generation (dc-SHG technique in solutions at a wavelength of 1064nm as 1.5×10–−29 esu and −4.9×10−29 esu, respectively. Among PBLG, PNBLG and nitrobenzene, it was found that only PNBLG has negative value of β. It follows that the effect of nitrophenyl groups in side chains is dominant for β whereas the contribution of carbonyl groups in main chain is dominant for the permanent dipole moment μ in PNBLG.

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