Optimizing electro-optic activity in chromophore/polymer composites and in organic chromophore glasses

2005 ◽  
Author(s):  
Larry Dalton ◽  
Bruce Robinson ◽  
Alex Jen ◽  
Philip Ried ◽  
Bruce Eichinger ◽  
...  
Keyword(s):  
Polymer Composites ◽  
Electro Optic ◽  
Organic Chromophore

Electro‐Optic Activity in Excess of 1000 pm V −1 Achieved via Theory‐Guided Organic Chromophore Design

2021 ◽  
pp. 2104174
Author(s):  
Huajun Xu ◽  
Delwin L. Elder ◽  
Lewis E. Johnson ◽  
Yovan de Coene ◽  
Scott R. Hammond ◽  
...  
Keyword(s):  
Electro Optic ◽  
Organic Chromophore

Electro-Optic Waveguide Based on Hybrid Sol-Gel Doped with Organic Chromophore

2005 ◽  
Author(s):  
Hongxi Zhang ◽  
Nasser Peyghambarian ◽  
Mahmoud Fallahi ◽  
Jingdong Luo ◽  
Baoquan Chen ◽  
...  
Keyword(s):  
Sol Gel ◽  
Electro Optic ◽  
Optic Waveguide ◽  
Organic Chromophore

Synthesis and Characterization of Dendritic Architecture Containing Push-Pull Conjugated Organic Chromophore Possessing Nonlinear Optical Property

2006 ◽  
Vol 937 ◽  
Author(s):  
Jin Joo Choi ◽  
Jong Sun Lim ◽  
Changjin Lee ◽  
Dong Wook Kim
Keyword(s):  
Chemical Structure ◽  
Nonlinear Optical ◽  
Nonlinear Optical Property ◽  
Nitrogen Atmosphere ◽  
Broad Absorption ◽  
Trans Conformation ◽  
Broad Absorption Band ◽  
Electro Optic ◽  
Organic Chromophore

ABSTRACTWe designed and synthesized a dendritic architecture in which three branches of the NLO-active component consisting of push-pull type conjugated structure were linked onto its core. Chemical structure of the dendritic nonlinear optical (NLO) chromophore was verified by NMR spectroscopy, which clearly showed that the conjugated bridge had a trans-conformation. The dendrimer exhibited that the broad absorption band centered at around 608 nm extending to 760 nm. It was thermally stable up to 275 °C in the nitrogen atmosphere. Polymer film was prepared by spincoating the solution of mixture of amorphous polycarbonate (APC) and the dendritic chromophore, which exhibited an electro-optic coefficient of 19 pm/V at 1.55 μm wavelength.

Epitaxial ferroelectric thin films

1994 ◽  
Vol 52 ◽  
pp. 572-573
Author(s):  
S. G. Ghonge ◽  
E. Goo ◽  
R. Ramesh ◽  
R. Haakenaasen ◽  
D. K. Fork
Keyword(s):  
Single Crystal ◽  
Work Function ◽  
Nonvolatile Memory ◽  
Ferroelectric Properties ◽  
Electrical Contact ◽  
Memory Devices ◽  
Ferroelectric Films ◽  
Si Substrates ◽  
Electro Optic ◽  
Wide Range

Microstructure of epitaxial ferroelectric/conductive oxide heterostructures on LaAIO3(LAO) and Si substrates have been studied by conventional and high resolution transmission electron microscopy. The epitaxial films have a wide range of potential applications in areas such as non-volatile memory devices, electro-optic devices and pyroelectric detectors. For applications such as electro-optic devices the films must be single crystal and for applications such as nonvolatile memory devices and pyroelectric devices single crystal films will enhance the performance of the devices. The ferroelectric films studied are Pb(Zr0.2Ti0.8)O3(PLZT), PbTiO3(PT), BiTiO3(BT) and Pb0.9La0.1(Zr0.2Ti0.8)0.975O3(PLZT).Electrical contact to ferroelectric films is commonly made with metals such as Pt. Metals generally have a large difference in work function compared to the work function of the ferroelectric oxides. This results in a Schottky barrier at the interface and the interfacial space charge is believed to responsible for domain pinning and degradation in the ferroelectric properties resulting in phenomenon such as fatigue.

Temperature Measurement in Laminar Free Convection Using Electro-Optic Holography

1997 ◽  
Vol 7 (9) ◽  
pp. 1893-1898 ◽  
Author(s):  
G. Schirripa Spagnolo ◽  
D. Ambrosini ◽  
A. Ponticiello ◽  
D. Paoletti
Keyword(s):  
Free Convection ◽  
Temperature Measurement ◽  
Electro Optic
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