General Physics and Wave Processes

Mathematical modeling of biophysical processes in living cells and tissues

duration 6 months

Romanovskii Yu. M., Prof, Doctor of Science
(Tel.: +7(095) 939-26-12, Fax: +7(095)939-31-13, Email: romanov@yumr.phys.msu.ru

The theory and computer modeling of autowave processes in living objects and intracellular mobility, as well as mathematical models of molecular machines, blood-vessel system, the active electric-conducting system of plants, structure-dynamic processes in suspensions of interacting particles, living cells, and blood are being developed. Development of the models of the autowave mobility and the intracellular dynamics of living cells, as well as models of the dynamics of protein ferment molecules. Computer simulations of the hydrodynamic resistance in the blood-vessel system network. Investigations of generation and propagation of the pulses of the electric potential of plants and the processes of aggregation of species, membrane vesicles, and blood cells.

Interaction of femtosecond laser pulses with plasmas of modified targets

duration 6 months

Savel'ev A.B., Assoc. Prof, Candidate of Science
Tel.: +7(095) 939-53-18, Fax: +7(095)939-31-13, Email: savelev@femto.ilc.msu.ru

Heating of the laser plasma using targets with a modified near-surface layer, including targets with periodic or stochastic laser-modulated surfaces, porous structures, and free-standing ultrathin films. This approach allows the plasma temperature to be substantially increased, the yield of hard-x-ray emission to be improved, and the ion plasma temperature to be radically increased from 50 eV up to tens of kiloelectronvolts.

duration 6 months

Shuvalov V.V., Prof, Doctor of Science Tel.: +7(095) 939-50-35, Fax: +7(095)939-31-13, Email: vsh@vsh.phys.msu.ru

Development of methods allowing a fast visualization of the inner structure of strongly scattering objects with comparatively large sizes. Recently, we were able to implement an unprecedentedly fast visualization and projection reconstruction of images of strongly absorbing inclusions with a diameter up to 5 mm hidden by processes of multiple scattering in model objects with sizes up to 140 mm. We have experimentally demonstrated that, with a power of input radiation of ~20 mW, the minimum time required to measure one projection is about 0.8 s, while the total time required to scan the entire object is less than 400 s.

duration 6 months

Zheltikov A.M., Prof, Doctor of Science Tel.: +7(095) 939-39-59, Fax: +7(095)939-31-13, Email: zheltikov@top.phys.msu.ru

Generation of ultrashort light pulses in hollow-core fibers with simultaneous frequency conversion of these pulses. Experimental study of using hollow fibers and hollow planar photonic band-gap waveguides for efficient frequency conversion, short-pulse synthesis, and the improvement of the sensitivity of nonlinear spectroscopic techniques.

Correction of aberrations of laser radiation by means of adaptive optics

duration 6 months

Cherezova T. Yu., Researcher, Candidate of Science Tel.: +7(095) 939-53-09, Fax: +7(095)939-31-13, Email: cherezova@mail.ru

Investigation of aberrations of active media of solid-state lasers, aberrations resulting from thermal deformations of cavity mirrors, and aberrations related to the delivery of the laser beam to a target. The possibility of compensating such aberrations with the use of controlled flexible mirrors is studied. This research includes both experimental interferometric studies and numerical simulations of the character of deformations, the limiting compensation abilities of flexible mirrors, and parameters of such mirrors aimed at the improvement of mirror design.

Nonlinear polarization optics

duration 6 months

Makarov V.A., Professor, Head of the Chair, Doctor of Science
Tel.: +7(095) 939-12-25, Fax: +7(095)939-31-13, Email: makarov@wavlab.ilc.msu.ru

Theoretical investigations of polarization self-action and wave-interaction effects in nonlinear optics. Investigations on the polarization changes as the wave propagates through nonlinear crystals, becomes reflected from smooth surfaces, or experiences cavity effects. Moreover, in nonlinear media, polarization of light may considerably vary both in the cross section of a beam and in a laser pulse.

Laser diagnostics of biological fluids

duration 4-6 months

Alexander V. Priezzhev, Associate Professor, Candidate of Sciences (physics and mathematics), Tel. (7-095) 939-26-12, Fax: (7-095) 939-12-25 avp2@mail.ru).

Program of postdoctorial training includes study of related literature, including publications, diploma and PhD theses authored by laboratory members, attending special lecture courses, participation in laboratory seminar, practical assessment of experimental techniques of handling biological objects and numerical simulation techniques, work with computer data bases and internet resources, acquaintance with practical issues of application laser diagnostic techniques in clinical environment, fulfilling a specific research project. Working languages: Russian and/or English.