Advanced Search
Display options
Filter resources
Text Availability
Article type
Publication date
Species
Language
Sex
Age
Showing 13 to 24 of 250 entries
Sorted by: Best Match Show Resources per page
Phase-matched four-wave mixing of sub-100-TW/ cm2 femtosecond laser pulses in isolated air-guided modes of a hollow photonic-crystal fiber.

Physical review. E, Statistical, nonlinear, and soft matter physics

Konorov SO, Serebryannikov EE, Akimov DA, Ivanov AA, Alfimov MV, Zheltikov AM.
PMID: 15697544
Phys Rev E Stat Nonlin Soft Matter Phys. 2004 Dec;70(6):066625. doi: 10.1103/PhysRevE.70.066625. Epub 2004 Dec 28.

Hollow-core photonic-crystal fibers are shown to allow propagation and nonlinear-optical frequency conversion of high-intensity ultrashort laser pulses in the regime of isolated guided modes confined in the hollow gas-filled fiber core. With a specially designed dispersion of such modes,...

Iron oxide modified diamond blends containing ultradispersed diamond.

Journal of colloid and interface science

Tsoncheva T, Dimitrov M, Ivanova L, Paneva D, Mitev D, Tsintsarski B, Mitov I, Stavrev S, Minchev C.
PMID: 16616929
J Colloid Interface Sci. 2006 Aug 01;300(1):183-9. doi: 10.1016/j.jcis.2006.03.028. Epub 2006 Mar 20.

Iron oxide modified diamond blends containing different amounts of ultradispersed diamond were prepared and characterized by nitrogen physisorption, X-ray diffraction, temperature programmed reduction, Mössbauer and IR spectroscopy. The catalytic behavior of these composite materials in methanol decomposition to hydrogen,...

Spectral compression of frequency-shifting solitons in a photonic-crystal fiber.

Optics letters

Fedotov AB, Voronin AA, Fedotov IV, Ivanov AA, Zheltikov AM.
PMID: 19252585
Opt Lett. 2009 Mar 01;34(5):662-4. doi: 10.1364/ol.34.000662.

A highly nonlinear photonic-crystal fiber is used to demonstrate spectral compression of femtosecond light pulses combined with a tunable soliton frequency shift. A spectral compression ratio of 6.5 is achieved for solitons produced by unamplified 50 fs 1270 nm...

Noncentrosymmetric crystals with marked nonlinear optical properties.

The journal of physical chemistry. A

Ivanova BB, Spiteller M.
PMID: 20334443
J Phys Chem A. 2010 Apr 22;114(15):5099-103. doi: 10.1021/jp1002758.

The crystal structures and optical properties of the novel (1R,2R)-(-)-1,2-diammoniumocyclohexane squarate trihydrate (1) and bis(hydrogen squarate) (2) were elucidated and reported. Physical methods, single crystal X-ray diffraction, UV-vis-NIR, polarized IR spectroscopy of oriented colloids, mass spectrometry, and thermal methods...

Structural aspects of lipid monolayers: computer simulation analyses.

Langmuir : the ACS journal of surfaces and colloids

Shushkov P, Tzvetanov S, Velinova M, Ivanova A, Tadjer A.
PMID: 20337413
Langmuir. 2010 Jun 01;26(11):8081-92. doi: 10.1021/la904734b.

Extensive molecular dynamics simulations at room temperature were carried out for model films of two dissimilar lipids (DPPC and dicaprin) at the air/water interface. To study the peculiarities of the organization patterns at different average areas per molecule, surface...

Comment on "Photoluminescence ring formation in coupled quantum wells: excitonic versus ambipolar diffusion".

Physical review letters

Ivanov AL, Muljarov EA, Mouchliadis L, Zimmermann R.
PMID: 20482154
Phys Rev Lett. 2010 Apr 30;104(17):179701; author reply 179702. doi: 10.1103/PhysRevLett.104.179701. Epub 2010 Apr 28.

No abstract available.

Ras-dva1 small GTPase regulates telencephalon development in Xenopus laevis embryos by controlling Fgf8 and Agr signaling at the anterior border of the neural plate.

Biology open

Tereshina MB, Ermakova GV, Ivanova AS, Zaraisky AG.
PMID: 24570397
Biol Open. 2014 Mar 15;3(3):192-203. doi: 10.1242/bio.20147401.

We previously found that the small GTPase Ras-dva1 is essential for the telencephalic development in Xenopus laevis because Ras-dva1 controls the Fgf8-mediated induction of FoxG1 expression, a key telencephalic regulator. In this report, we show, however, that Ras-dva1 and...

Fully doped oligomers of emeraldine salt: polaronic versus bipolaronic configuration.

The journal of physical chemistry. B

Petrova JN, Romanova JR, Madjarova GK, Ivanova AN, Tadjer AV.
PMID: 21417472
J Phys Chem B. 2011 Apr 14;115(14):3765-76. doi: 10.1021/jp111914n. Epub 2011 Mar 21.

Calculations for model oligomers of the emeraldine salt with UBLYP/6-31G*/PCM are performed. The models differ in number of monomers, in the position of the counterions (Cl(-)), and in multiplicity. The molecular features affected most prominently by the protonation, namely,...

Existence of exciton crystals in quantum wires.

Physical review letters

Haug H, Ivanov AL.
PMID: 10054878
Phys Rev Lett. 1993 Nov 08;71(19):3182-3185. doi: 10.1103/PhysRevLett.71.3182.

No abstract available.

Two-photon generation of excitonic molecules in CuCl: An exactly solvable bipolariton model and high-precision experiments.

Physical review. B, Condensed matter

Hasuo M, Haug H, Ivanov AL, Nagasawa N.
PMID: 9980200
Phys Rev B Condens Matter. 1995 Oct 15;52(15):11017-11033. doi: 10.1103/physrevb.52.11017.

No abstract available.

Radiative renormalizations for excitonic molecules.

Physical review letters

Haug H, Ivanov AL.
PMID: 10058758
Phys Rev Lett. 1995 Jan 16;74(3):438-441. doi: 10.1103/PhysRevLett.74.438.

No abstract available.

Magnetic Exchange Interaction in Nitronyl Nitroxide Radical-Based Single Crystals of 3d Metal Complexes: A Combined Experimental and Theoretical Study.

ACS omega

Bhatt P, Kolanji K, Ivanova A, Yogi A, Jakob G, Mukadam MD, Yusuf SM, Baumgarten M.
PMID: 31458563
ACS Omega. 2018 Mar 09;3(3):2918-2933. doi: 10.1021/acsomega.7b01669. eCollection 2018 Mar 31.

Two stable nitronyl nitroxide free radicals {

Showing 13 to 24 of 250 entries