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Showing 1 to 12 of 36 entries
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Mode selection in InAs quantum dot microdisk lasers using focused ion beam technique.

Optics letters

Bogdanov AA, Mukhin IS, Kryzhanovskaya NV, Maximov MV, Sadrieva ZF, Kulagina MM, Zadiranov YM, Lipovskii AA, Moiseev EI, Kudashova YV, Zhukov AE.
PMID: 26368702
Opt Lett. 2015 Sep 01;40(17):4022-5. doi: 10.1364/OL.40.004022.

Optically pumped InAs quantum dot microdisk lasers with grooves etched on their surface by a focused ion beam are studied. It is shown that the radial grooves, depending on their length, suppress the lasing of specific radial modes of...

Heat-sink free CW operation of injection microdisk lasers grown on Si substrate with emission wavelength beyond 1.3  μm.

Optics letters

Kryzhanovskaya N, Moiseev E, Polubavkina Y, Maximov M, Kulagina M, Troshkov S, Zadiranov Y, Guseva Y, Lipovskii A, Tang M, Liao M, Wu J, Chen S, Liu H, Zhukov A.
PMID: 28957093
Opt Lett. 2017 Sep 01;42(17):3319-3322. doi: 10.1364/OL.42.003319.

High-performance injection microdisk (MD) lasers grown on Si substrate are demonstrated for the first time, to the best of our knowledge. Continuous-wave (CW) lasing in microlasers with diameters from 14 to 30 μm is achieved at room temperature. The...

On chaotic dynamics in "pseudobilliard" Hamiltonian systems with two degrees of freedom.

Chaos (Woodbury, N.Y.)

Eleonsky VM, Korolev VG, Kulagin NE.
PMID: 12779697
Chaos. 1997 Dec;7(4):710-730. doi: 10.1063/1.166269.

A new class of Hamiltonian dynamical systems with two degrees of freedom is studied, for which the Hamiltonian function is a linear form with respect to moduli of both momenta. For different potentials such systems can be either completely...

Nonmonotonous Changes in Metabolic Parameters of Tissues and Cells under Action of Ionizing Radiation on Animal.

Journal of biological physics

Kolomiytseva IK, Slozhenikina LV, Fialkovskaya LA, Kulagina TP, Markevich LN, Potekhina NI.
PMID: 23345706
J Biol Phys. 1999 Dec;25(4):325-38. doi: 10.1023/A:1005147109299.

A nonmonotonous relationship between changes of metabolic parameters of tissues and cells of animal and radiation dose were discussed. Under acute irradiation of animals the nonmonotonous dose-response curve for metabolic parameters of tissues and cells were found. The nonmonotonous...

Highly efficient injection microdisk lasers based on quantum well-dots.

Optics letters

Moiseev E, Kryzhanovskaya N, Maximov M, Zubov F, Nadtochiy A, Kulagina M, Zadiranov Y, Kalyuzhnyy N, Mintairov S, Zhukov A.
PMID: 30272681
Opt Lett. 2018 Oct 01;43(19):4554-4557. doi: 10.1364/OL.43.004554.

We study injection GaAs-based microdisk lasers capable of operating at room and elevated temperatures. A novel type of active region is used, namely InGaAs quantum well-dots representing a dense array of indium-rich islands formed inside an indium-depleted residual quantum...

Virtual cavity in distributed Bragg reflectors.

Optics express

Shchukin VA, Ledentsov NN, Kalosha VP, Ledentsov N, Agustin M, Kropp JR, Maximov MV, Zubov FI, Shernyakov YM, Payusov AS, Gordeev NY, Kulagina MM, Zhukov AE, Egorov AY.
PMID: 30469631
Opt Express. 2018 Sep 17;26(19):25280-25292. doi: 10.1364/OE.26.025280.

We show theoretically and experimentally that distributed Bragg reflector (DBR) supports a surface electromagnetic wave exhibiting evanescent decay in the air and oscillatory decay in the DBR. The wave exists in TM polarization only. The field extension in the...

Zn- or Cu-containing CaP-Based Coatings Formed by Micro-Arc Oxidation on Titanium and Ti-40Nb Alloy: Part II-Wettability and Biological Performance.

Materials (Basel, Switzerland)

Komarova EG, Sharkeev YP, Sedelnikova MB, Prymak O, Epple M, Litvinova LS, Shupletsova VV, Malashchenko VV, Yurova KA, Dzyuman AN, Kulagina IV, Mushtovatova LS, Bochkareva OP, Karpova MR, Khlusov IA.
PMID: 33008055
Materials (Basel). 2020 Sep 30;13(19). doi: 10.3390/ma13194366.

This work describes the wettability and biological performance of Zn- and Cu-containing CaP-based coatings prepared by micro-arc oxidation on pure titanium (Ti) and novel Ti-40Nb alloy. Good hydrophilic properties of all the coatings were demonstrated by the low contact...

Bifurcations of the trajectories at the saddle level in a Hamiltonian system generated by two coupled Schrodinger equations.

Chaos (Woodbury, N.Y.)

Eleonsky VM, Korolev VG, Kulagin NE, Shil'nikov LP.
PMID: 12780004
Chaos. 1992 Oct;2(4):571-579. doi: 10.1063/1.165863.

Bifurcations of the complex homoclinic loops of an equilibrium saddle point in a Hamiltonian dynamical system with two degrees of freedom are studied. It arises to pick out the stationary solutions in a system of two coupled nonlinear Schrodinger...

Equidistant spectra of anharmonic oscillators.

Chaos (Woodbury, N.Y.)

Dubov SY, Eleonskii VM, Kulagin NE.
PMID: 12780085
Chaos. 1994 Mar;4(1):47-53. doi: 10.1063/1.166056.

Some representative potentials of the anharmonic-oscillator type are constructed. Some corresponding spectra-shift operators are also constructed. These operators are a natural generalization of Fok creation and annihilation operators. The Schrodinger problem for these potentials leads to an equidistant energy...

Electrically pumped InGaAs/GaAs quantum well microdisk lasers directly grown on Si(100) with Ge/GaAs buffer.

Optics express

Kryzhanovskaya NV, Moiseev EI, Polubavkina YS, Maximov MV, Kulagina MM, Troshkov SI, Zadiranov YM, Lipovskii AA, Baidus NV, Dubinov AA, Krasilnik ZF, Novikov AV, Pavlov DA, Rykov AV, Sushkov AA, Yurasov DV, Zhukov AE.
PMID: 28789176
Opt Express. 2017 Jul 10;25(14):16754-16760. doi: 10.1364/OE.25.016754.

In this work we report, to the best of our knowledge, the first quantum well electrically-pumped microdisk lasers monolithically deposited on (001)-oriented Si substrate. The III-V laser structure was epitaxially grown by MOCVD on silicon with an intermediate MBE-grown...

[The perspective fluoroplastic porous carrier for conservation and transfer of samples of blood plasma: application of "dry drop" technique with the purpose of detection of individual fatty acids.].

Klinicheskaia laboratornaia diagnostika

Aripovsky AV, Astakhova EA, Kolesnik PO, Kulagina TP, Shushman IV, Titov VN.
PMID: 30807051
Klin Lab Diagn. 2017;62(9):526-536. doi: 10.18821/0869-2084-2017-62-9-526-536.

It is proposed for preserving samples of biological fluids (blood plasma first of all) and mailing them to analytical laboratory to significantly modify a well-known technique of "dried blood spot" (DBS) at the expense of application of home-made fluoroplastic...

[Insomnia and sleep-related breathing disturbances are the new risk factors for ischemic stroke].

Zhurnal nevrologii i psikhiatrii imeni S.S. Korsakova

Vinogradov OI, Kulagina AM.
PMID: 26120996
Zh Nevrol Psikhiatr Im S S Korsakova. 2015;115(3):40-47. doi: 10.17116/jnevro20151153240-47.

Sleep disorders have an extremely negative impact on human vital functioning, encompassing both mental and somatic sphere. A large number of clinical trials have shown an increased risk of cardiovascular diseases and their complications, including the risk of ischemic...

Showing 1 to 12 of 36 entries