Конкурсы молодых ученых---> Конкурс 2014 года
11-й Молодежный конкурс имени Ивана Анисимкина
Конкурс проводился 20 и 21 октября 2014 г.
Конкурсная комиссия:
Председатель - академик РАН Ю.В.Гуляев
Сопредседатели - чл.-корр. РАН С.А.Никитов, В.И.Анисимкин
Члены - С.Н.Артеменко, О.В.Бецкий, В.А.Волков, В.Н.Губанков, А.И.Ефимов, Е.В.Ефремова, В.В.Демидов, А.И.Захаров, В.И.Каевицер, В.Н.Корниенко, И.М.Котелянский, И.Е.Кузнецова, Б.Г.Кутуза, А.В.Медведь, К.Ю.Нагаев, Г.А. Овсяннков, А.И.Панас, В.Н.Пожидаев, А.А.Потапов, В.В. Проклов, В.А.Сабликов, В.А.Сергеев, Ю.А.Филимонов, В.А.Черепенин, В.Г.Шавров.Cекретари: Н.Г.Петрова, A.В.Вайнер.
Оценив теоретический, экспериментальный и практический уровень представленных работ, конкурсная комиссия постановила присудить:
- по конкурсу молодых ученых и аспирантов 2-го и 3-го годов обучения:
- for young researchers and post-graduated students of the 2nd and 3rd years:
I-е место - работе Сушковой О.С. (аспиранта 3 года ИРЭ, инженера МИРЭ), Габовой А.В., Карабанова А.В., Кершнер И.А., Обухова К.Ю., Обухова Ю.В. «Метод частотно-временного анализа совместных измерений ЭЭГ, ЭМГ и механического тремора при болезни Паркинсона».
A METHOD OF TIME-FREQUENCY ANALYSIS OF joint eeg, emg, mechanical TREMOR SIGNALS IN PARKINSON’S DESEASE
Sushkova O.S. - graduate student, Kotel’nikov Institute of Radioengineering and Electronics of RAS; Gabova A.V. – senior researcher, Institute of Higher Nervous Activity and Neurophysiology of RAS; Karabanov A.V. – senior researcher, Scientific Centre of Neurology of RAS; Kershner I.A. – student, Moscow Institute of Physics and Technology; Obukhov K.Y. – student, Moscow Institute of Physics and Technology; Obukhov Y.V. – Headof laboratory, Kotel’nikov Institute of Radioengineering and Electronics of RAS
Abstract: A new method of analyzing of the time-frequency dynamics of background electrical activity of the brain are described by means of which at least three main features of Parkinson's disease (PD) in the early stage are detected: 1) interhemispheric asymmetry of the time-frequency characteristics (EEG) in the central leads of the motor area of the cerebral cortex; 2) the emergence of EEG rhythm in these leads in the frequency range of 4-6 Hz and its relatedness to the electromyograms (EMG) and mechanical tremor of the contralateral limbs in the tremor form of PD; 3) disorganization of the dominant rhythm corresponding to the general ideas about the disorganization of the various systems in Parkinson's disease.II-е место - работе Папроцкого С.К. (м.н.с. МИРЭ), Алтухова И.В., Кагана М.С. «Нерезонансное туннелирование в сверхрешетках InAs/AlSb с оптическим резонатором».
NON-RESONONT TUNNELING in InAs/AlSb SUPERLITTICES with OPTICAL CAVITIES
S.K. Paprotskiy – Junior Research Associate, Kotel’nikov’ IRE RAS; I.V. Altoukhov – Dr. of Sciences, Leading Research Associate, Kotel’nikov’ IRE RA; M.S. Kagan – Dr. of Sciences, Head of Lab., Kotel’nikov’IRE RAS
Abstract: The vertical transport in short-period InAs/AlSb superlattices was studied. The series of equidistant maxima on current-voltage characteristics in the non-resonant tunnelling regime was observed. This maxima appeared due to influence of the cavity on optical transitions intensity (Purcell effect).
III-е место - работе Устимчика В.Е. (аспиранта 3 года МФТИ, инженера МИРЭ), Чаморовского Ю.К., Филиппова В.Н., Никитовa С.А. «Исследование оптических свойств специальных одномодовых оптических волокон с большим характерным размером фундаментальной моды».
INVESTIGATION of the OPTICAL PROPERTIES of SPECIAL SINGLE-MODE FIBERS with LARGE FUNDUMENTAL MODE AREA
V.E. Ustimchik – PhD student, MPTI (SU); engineer, laboratory 191, IRE RAS, Тел: +79265739183; E-mail: ustimchikv@gmail.com; Yu.K. Chamorovskii – PhD, Leading Research Associate, IRE RAS; V.N. Filippov – PhD, Researcher, Optoelectronic Research Center, Tampere University of Technology; S.A. Nikitov – PhD, Corresponding Member of RAS, Acting Director General, IRE RAS
Abstract: This paper presents the results of experimental and theoretical study of two type single-mode optical fiber properties – tapered double-clad optical fiber with a core diameter of 100 microns and cylindrical fiber with W-refractive index profile with a core diameter of 50 microns weakly sensitive to macro bends. Such fibers are characterized by a record large effective area of the fundamental mode and can be advantageously used in high power laser systems with the aim of lowering the non-linear effects threshold.
IV-е место - работе Павлова Е.С. (н.с. СФ ИРЭ), Филимонова Ю.А. «Бистабильность спиновых волн в нелинейных брэгговских резонаторах на основе ферритовых магнонных кристаллов».
SPIN-WAVE BISTABILITY in a NONLINEAR BRAGG RESONATORS BASED on FERRITE CRYSTALS
Pavlov E.S. - Scientific Researcher, Kotelnikov SBIRE RAS; Filimonov Yu.A. - Dr.sc. Phys.Math., Director of Kotelnikov SBIRE RAS
Abstract: Characteristic of magnetostatic spin waves (MSSW) nonlinear Bragg resonators build on two-dimensional ferrite magnonic crystal are investigated. Bistability loops of reflection and transmittion coefficients is make at cyclical change of input power was obtained. It is also shown that bistability is observed at the power levels, less than typical values of three magnons scattering processes.
V-е место - работе Теплых А.А. ( к.ф.-м-н., с.н.с. СФ ИРЭ) «Теоретическая оценка эффективности резонатора с поперечным возбуждающим электрическим полем».
THEORETICAL ESTIMATION of the EFFECTIVENESS of the LATERAL-ELECTRIC-FIELD-EXCITED RESONATOR
Teplykh A. A. - Senior research scientist, Kotel’nikov Institute of Radio Engineering and Electronics of RAS, Saratov Branch, e-mail: teplykhaa@mail.ru
Abstract: New method of calculation of electromechanical coupling coefficient of piezoelectric lateral-electric-field-excited resonator is developed. This method allows determining the efficiency of excitation of the resonator at a certain frequency using finite element modeling. It is shown that the results obtained by this method are in good agreement with the estimates of the efficiency obtained by other methods.
VI - место - работе Кона И.А. (м.н.с. МИРЭ), Коваленко А.Г., Ильина А.С., Выставкина А.Н. «Программный комплекс управления измерениями».
EXPERIMENTAL RESEARCH CONTROL SOFTWARE SYSTEM
Cohn I.A., junior research scientist Kotel’nikov Institute of Radio Engineering and Electronics of RAS e-mail: cohn@hitech.cplire.ru; Kovalenko А.G. – leading researcher, PhD, Kotel’nikov IRE RAS; Ilin А.SС. – junior researcher, PhD, Kotel’nikov IRE RAS; Vystavkin A.N. – principal researcher, Sci.D., professor, Kotel’nikov IRE RAS
Abstract: A software system, intended for automation of a small scale research, has been developed. The software allows one to control equipment, acquire and process data by means of simple scripts. The main purpose of that development is to increase experiment automation easiness, thus significantly reducing experimental setup automation efforts. In particular, minimal programming skills are required and supervisors have no reviewing troubles. Unlike well-known data acquisition commercial software systems, the control is performed by an imperative scripting language. This approach eases complex control and data acquisition algorithms implementation. A dynamic library interface performs interaction with external interfaces.
- по конкурсу студентов и аспирантов 1-го года обучения:
- for students and post-graduated students of the 1st year:
I-е место - работе Девизоровой Ж.А. (аспиранта 1 года МФТИ, стажера-исследователя МИРЭ), Волкова В.А. «Вклады гетерограницы в параметры спин-орбитального взаимодействия для электронов на гетерогранице (001)GaAs/AlGaAs».
CONTRIBUTIONS from HETEROBOUNDARY to SPIN-ORBIT INTERACTION PARAMETERS of ELECTRONS at the (001) GaAs/AlGaAs HETEROBOUNDARY
Zh.A. Devizorova– 1st year PhD student, MIPT, E-mail:DevizorovaZhanna@gmail.com; V.A. Volkov –Dr. Sc. (Phis.-Math.), Professor, Leading Researcher, Kotel’nikov Institute of Radio Engineering and Electronics of RAS
Abstract: Mechanisms of spin splitting of the energy spectrum of 2D electrons in asymmetric quantum well GaAs/AlGaAs have been studied. The interfacial spin splitting has been shown to compensate considerably the contribution of the bulk Dresselhaus mechanism and enhance the contribution of the Bychkov-Rashba mechanism. Analytical expressions for g-factor tensor components and its derivatives with respect to absolute value of quantizing component of magnetic field were found in oblique quantizing magnetic field. Results are in agreement with experimental data.
II-е место – работе Недоспасова И.А. (студента 6 курса МГУ), Можаева В.Г., Кузнецовой И.Е. «SH-волны с нулевой скоростью переноса энергии в пластине из сверхсильного пьезоэлектрика KNbO3».
SH-WAVES with ZERO ENERGY-FLUX VELOCITY in PLATE of SUPER STRONG PIEZOELECTRIC KNbO3
Kuznetsova I.E., Doctor of Sciences, Leading Research Scientist, Kotelnikov Institute of Radio-engineering and Electronics of RAS, e-mail:kuziren@yandex.ru; Mozhaev V.G., PhD, Senior Research Scientist, Physics Faculty, Lomonosov Moscow State University; Nedospasov I.A.,student, Physics Faculty, Lomonosov Moscow State University, e-mail: nedospasov.ilya@physics.msu.ru
Abstract: The problem of the existence of pure-shear backward waves and zero-group velocity waves is studied for plates of X-cut and Y-cut potassium niobate. The last mentioned waves are promising for development of new acoustoelectronic devices of the hybrid class. The secular equations are derived in explicit analytical form and they are studied numerically. It is shown that the backward waves and waves with zero energy-flux velocity exist only in the X-cut plate. This is explained by the effect of concavity on the slowness surface for shear bulk waves in locality of the X axis of potassium niobate.
III-е место - работе Чекушкина А.М. (аспиранта 1 года МФТИ, инженера МИРЭ), Тарасова М.А. «Первичный криогенный термометр на основе цепочек туннельных переходов сверхпроводник-изолятор-нормальный металл».
PRIMARY CRYOGENIC THERMOMETER BASED on CHANE of SIN TUNNEL JUNCTIONS
A.M. Chekushkin - 1 year post-graduate student MIPT, engineer IRE, them. V.A. Kotelnikov RAS, E-mail: chekushkin@phystech.edu;M.A. Tarasov - D.Sc., Chief Researcher IRE them. V.A. Kotelnikov RAS
Abstract: Cryogenic microthermometer based on chain of tunnel junctions superconductor-insulator-normal metal (SIN) was developed, manufactured and researched. The thermometer was tested at the temperature range from 0.1 K to 1.1 K. Increase serial number of junction to 100 improved temperature resolution , compared with single junction to 0.3 mK / √Hz, that is 3 orders of magnitude better than single junction showed.
