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Proton-Triggered Octopolar NLO Chromophores

The Journal of Physical Chemistry A, 2006
C(3)-symmetric, octopolar 1,3,5-alkynylbenzenes with terminal pyridyl substituents are presented which show an increase up to 17-fold in the second-order NLO activity upon protonation while maintaining their octopolar character, as confirmed by the depolarization ratios measured.
Inge, Asselberghs   +2 more
openaire   +2 more sources

An effective indicator for NLOS, nLOS, LOS propagation channels conditions

2012 6th European Conference on Antennas and Propagation (EUCAP), 2012
A simple and physically-based index is proposed to identify among Line-of-Sight (LOS), near Line-of-Sight (nLOS) and Non-Line-of-Sight (NLOS) channel propagation conditions. The index is based on the Generalized K (GK) fading model which has been proven to embody different channel propagation conditions.
SORRENTINO, Antonio   +3 more
openaire   +1 more source

Acido- and Phototriggered NLO Properties Enhancement

The Journal of Physical Chemistry B, 2005
In this paper, acido- and phototriggered enhancement of the nonlinear optical (NLO) properties are achieved by combining the 10-(2-arylethenyl)indolino[2,1-b]oxazolidine unit with various styrylic residues. The synthetic pathway allows the preparation of phenyl, naphthyl, anthryl, and phenanthryl derivatives, which have been shown to display ...
Sanguinet, Lionel   +6 more
openaire   +2 more sources

NLO-active maleimide copolymers

SPIE Proceedings, 1999
We synthesized some novel rigid NLO-active maleimide copolymers bearing DR-1 moieties (PMPD, PHSD, and PHND). All copolymers exhibited high Tgs and good solubilities for common solvents and excellent film-forming properties. Dependence of film thickness on the d 33 value for the poled copolymers induced by corona poling was investigated and it was ...
Masao Kato   +4 more
openaire   +1 more source

Weak NLOS Channel Sounding

2006 European Microwave Conference, 2006
A novel approach using differential reception and nulling interferometry is devoted to weak Non Line Of Sight (NLOS) signals measurement. Performed either in the spatial domain or in the spectral domain, this method can achieve Line Of Sight (LOS) dimming, and then NLOS emphasis.
M. Bocquet, Ch. Loyez, A Benlarbi-Delai
openaire   +1 more source

NLO Microscopy

Advanced Photonics Congress 2024
We demonstrate computational adaptive optical correction for second harmonic generation (SHG) and third harmonic generation (THG) holographic imaging. Results for transmission and epi SHG and transmission THG imaging will be discussed.
openaire   +1 more source

Organic NLO Polymers. 2. A Study of Main-Chain and Guest-Host NLO Polymers: NLO-phore Structure Versus Poling

Macromolecules, 1994
Several new dipolar main-chain χ (2) nonlinear optical (NLO) polymers were prepared. The NLO-phores, based on alkoxy substituted α-cyanoacrylates, were also placed as monomeric guests within a poly(methyl methacrylate) host. Polar alignment of the NLO-phores by corona poling and their relaxation behavior was monitored by detecting the optical signal ...
Michael E. Wright   +3 more
openaire   +1 more source

8.6 NLO materials

2022
Shilie Pan, Wenqi Jin, Zhihua Yang
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