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Showing 1 to 12 of 258 entries
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Polarization shaping for unidirectional rotational motion of molecules.

Physical review letters

Karras G, Ndong M, Hertz E, Sugny D, Billard F, Lavorel B, Faucher O.
PMID: 25815926
Phys Rev Lett. 2015 Mar 13;114(10):103001. doi: 10.1103/PhysRevLett.114.103001. Epub 2015 Mar 10.

Control of the orientation of the angular momentum of linear molecules is demonstrated by means of laser polarization shaping. For this purpose, we combine two orthogonally polarized and partially time-overlapped femtosecond laser pulses so as to produce a spinning...

Generalized full-vector multi-mode matching analysis of whispering gallery microcavities.

Optics express

Du X, Vincent S, Faucher M, Picard MJ, Lu T.
PMID: 24921544
Opt Express. 2014 Jun 02;22(11):13507-14. doi: 10.1364/OE.22.013507.

We outline a full-vectorial three-dimensional multi-mode matching technique in a cylindrical coordinate system that addresses the mutual coupling among multiple modes co-propagating in a perturbed whispering gallery mode microcavity. In addition to its superior accuracy in respect to our...

Spin-Spin Coupling between Quadrupolar Nuclei in Solids: (11)B-(75)As Spin Pairs in Lewis Acid-Base Adducts.

The journal of physical chemistry. A

Faucher A, Terskikh VV, Wasylishen RE.
PMID: 26075575
J Phys Chem A. 2015 Jul 09;119(27):6949-60. doi: 10.1021/acs.jpca.5b04163. Epub 2015 Jun 29.

Solid-state (11)B NMR measurements of Lewis acid-base adducts of the form R3AsBR'3 (R = Me, Et, Ph; R' = H, Ph, C6F5) were carried out at several magnetic field strengths (e.g., B0 = 21.14, 11.75, and 7.05 T). The...

Use of Bayesian Inference in Crystallographic Structure Refinement via Full Diffraction Profile Analysis.

Scientific reports

Fancher CM, Han Z, Levin I, Page K, Reich BJ, Smith RC, Wilson AG, Jones JL.
PMID: 27550221
Sci Rep. 2016 Aug 23;6:31625. doi: 10.1038/srep31625.

A Bayesian inference method for refining crystallographic structures is presented. The distribution of model parameters is stochastically sampled using Markov chain Monte Carlo. Posterior probability distributions are constructed for all model parameters to properly quantify uncertainty by appropriately modeling...

Hippocampal Injections of Oligomeric Amyloid β-peptide (1-42) Induce Selective Working Memory Deficits and Long-lasting Alterations of ERK Signaling Pathway.

Frontiers in aging neuroscience

Faucher P, Mons N, Micheau J, Louis C, Beracochea DJ.
PMID: 26793098
Front Aging Neurosci. 2016 Jan 11;7:245. doi: 10.3389/fnagi.2015.00245. eCollection 2015.

Increasing evidence suggests that abnormal brain accumulation of soluble rather than aggregated amyloid-β1-42 oligomers (Aβo(1-42)) plays a causal role in Alzheimer's disease (AD). However, as yet, animal's models of AD based on oligomeric amyloid-β1-42 injections in the brain have...

Dynamical Stark Effect in the nu(2)/nu(4) Vibrational Polyad of SiH(4): Theory and Observation.

Journal of molecular spectroscopy

Dupont J, Déroussiaux A, Coquard M, Lavorel B, Faucher O, Loëte M, Jauslin HR.
PMID: 10637111
J Mol Spectrosc. 2000 Feb;199(2):252-258. doi: 10.1006/jmsp.1999.8013.

We report a theoretical and experimental investigation of the dynamical Stark effect in a tetrahedral molecule, silane (SiH(4)). We use a tetrahedral formalism and Floquet theory to calculate the absorption spectra for the molecule dressed by an intense nonresonant...

The shortest route to chiral ditosylmethylamine.

Angewandte Chemie (International ed. in English)

Faucher N, Cintrat JC, Berthault P, Rousseau B.
PMID: 12491391
Angew Chem Int Ed Engl. 2002 Feb 01;41(3):497-8. doi: 10.1002/1521-3773(20020201)41:3<497::aid-anie497>3.0.co;2-g.

No abstract available.

Controlled chattering--a new 'cutting-edge' technology for nanofabrication.

Nanotechnology

Gu H, Zhang J, Faucher S, Zhu S.
PMID: 20683144
Nanotechnology. 2010 Sep 03;21(35):355302. doi: 10.1088/0957-4484/21/35/355302. Epub 2010 Aug 04.

Chatters are unwanted random defects on surfaces often generated in cutting samples via microtome for micrographic analysis. In this work, we demonstrate that chatters can actually be controlled for fabrication of uniform periodic wavy patterns on polymethylmethacrylate surfaces. This...

Pulse trains produced by phase-modulation of ultrashort optical pulses: tailoring and characterization.

Optics express

Renard M, Chaux R, Lavorel B, Faucher O.
PMID: 19474847
Opt Express. 2004 Feb 09;12(3):473-82. doi: 10.1364/opex.12.000473.

In this paper, creation of pulse doublets and pulse trains by spectral phase modulation of ultrashort optical pulses is investigated. Pulse doublets with specific features are generated through step-like and triangular spectral phase modulation, whereas sequences of pulses with...

Source-to-sink transport of sugar and regulation by environmental factors.

Frontiers in plant science

Lemoine R, La Camera S, Atanassova R, Dédaldéchamp F, Allario T, Pourtau N, Bonnemain JL, Laloi M, Coutos-Thévenot P, Maurousset L, Faucher M, Girousse C, Lemonnier P, Parrilla J, Durand M.
PMID: 23898339
Front Plant Sci. 2013 Jul 24;4:272. doi: 10.3389/fpls.2013.00272. eCollection 2013.

Source-to-sink transport of sugar is one of the major determinants of plant growth and relies on the efficient and controlled distribution of sucrose (and some other sugars such as raffinose and polyols) across plant organs through the phloem. However,...

Nanosecond colloidal quantum dot lasers for sensing.

Optics express

Guilhabert B, Foucher C, Haughey AM, Mutlugun E, Gao Y, Herrnsdorf J, Sun HD, Demir HV, Dawson MD, Laurand N.
PMID: 24664078
Opt Express. 2014 Mar 24;22(6):7308-19. doi: 10.1364/OE.22.007308.

Low-threshold, gain switched colloidal quantum dot (CQD) distributed-feedback lasers operating in the nanosecond regime are reported and proposed for sensing applications for the first time to the authors' knowledge. The lasers are based on a mechanically-flexible polymeric, second order...

First experimental determinations and R-matrix calculations of the angular distribution of photoelectrons ejected in direct inner-shell photoionization of excited atoms.

Physical review letters

Berrah N, Bizau J, Cubaynes D, Faucher P, Hibbert A, Journel L, Novak J, Pahler M, Rouvellou B, VoKy L, Wuilleumier FJ.
PMID: 10059108
Phys Rev Lett. 1995 Jul 03;75(1):33-36. doi: 10.1103/PhysRevLett.75.33.

No abstract available.

Showing 1 to 12 of 258 entries