322 research outputs found
Circuit for connecting the Videoton-340 with the ES-1030 as an operator console
A system of connection of the Videoton-340 text display to the standard ES-7070 unit, for use as an operator console, partially replacing and supplementing the ES-7070 electric typewriter, is described. The interactions, including the specific instructions, among the Videoton-340, the Consul-260.1 electric typewriter and the ES-7070, which is the means of user access to the unified system of computers, are presented. Users at the Institute of Space Research note the reliability, high information output rate, noiselessness and convenience of the keyboard of the system
Territorial Finances in the Conditions of Acceptance of the New Budgetary Code of Ukraine Территориальные финансы в условиях принятия нового Бюджетного кодекса Украины
The features of forming of financial resources, their of distribution in the conditions of acceptance of the new Budgetary code of Ukraine, are defined in the article. Further measures are offered on strengthening of budgetary-tax decentralization, creations financially of independent local authorities of power.В статье определены особенности формирования финансовых ресурсов, их распределение в условиях принятия нового Бюджетного кодекса Украины. Предложены дальнейшие мероприятия по усилению бюджетно-налоговой децентрализации, создания финансово самостоятельных местных органов власти
Transition absorption as a mechanism of surface photoelectron emission from metals
Transition absorption of electromagnetic field energy by an electron passing
through a boundary between two media with different dielectric permittivities
is considered both classically and quantum mechanically. It is shown that
transition absorption can make a substantial contribution to the process of
electron photoemission from metals due to the surface photoelectric effect.Comment: 4 pages, 3 figure
Population fluctuation mechanism of the super-thermal photon statistic of LEDs with collective effects
We found that fluctuations in the number of emitters lead to a super-thermal
photon statistics of small LEDs in a linear regime, with a strong emitter-field
coupling and a bad cavity favorable for collective effects. A simple analytical
expression for the second-order correlation function g_2 is found. g_2 increase
up to g_2=6 in the two-level LED model is predicted. The super-thermal photon
statistics is related to the population fluctuation increase of the spontaneous
emission to the cavity mode.Comment: 22 pages, 5 figure
Quantum fluctuations in the small Fabry-Perot interferometer
We consider the small, of the size of the order of the wavelength,
interferometer with the main mode excited by a quantum field from a nano-LED or
a laser. The input field is detuned from the interferometer mode with, on
average, a few photons. We find the field and the photon number fluctuation
spectra inside and outside the interferometer and identify the contributions of
quantum and classical noise in the spectra. Structures of spectra are different
for the field, the photon number fluctuations inside the interferometer; for
the transmitted, and the reflected fields. We note asymmetries in spectra.
Differences in the spectra are related to the colored (white) quantum noise
inside (outside) the interferometer. We calculate the second-order time
correlation functions; they oscillate and be negative under certain conditions.
Results help the study, design, manufacture, and use small elements of quantum
optical integrated circuits, such as delay lines and optical transistors.Comment: 16 pages, 9 figure
Single photon optical bistability
We investigate the bistability in a small Fabry-Perot interferometer (FPI)
with the optical wavelength size cavity, the nonlinear Kerr medium and only a
few photons, on average, excited by the external quantum field. Analytical
expressions for the stationary mean photon number, the bistability domain, the
field and the photon number fluctuation spectra are obtained. Multiple
stationary states of the FPI cavity field with different spectra are possible
at realistic conditions, for example, in the FPI with the photonic crystal
cavity and the semiconductor-doped glass nonlinear medium.Comment: 20 pages, 6 figure
The issues of covering science and technical policy of modern Russia in the strategic planning documents
This paper presents the evaluation of the current relations between the documents of strategic planning in the sphere of science and technology; the main issues of reflecting scientific and technological priorities in strategic documents are discussed; recommendations on improving the system of strategic planning in the sphere of innovation and scientific and technological development are given.peer-reviewe
Photoemission from metal nanoparticles
A.Brodsky and Yu.Gurevitch approach is discussed and generalized for
photoemission from metal nano-particles taking into account the excitation of
localized plasmon resonance (LPR) and changes of electromagnetic field (EMF)
and conduction electron mass in the metal - environment interface. New result
is the increase of photo-emission current several time respectively to the case
of continues metal film due to increase of intensity of EMF near the surface of
nanoparticles and also due to surface phenomena mentioned above. Results can be
applied for development new photodetectors, photo energy converters (solar
cells) and for more studies of photoemission from metal nanoparticles.Comment: Accepted for publication in Uspekhi Fizicheskikh Nauk,
http://ufn.ru/en/articles/accepted/35575/, Citation: Protsenko I E, Uskov A V
"Photoemission from metal nanoparticles" Phys. Usp., accepte
On collective Rabi splitting in nanolasers and nano-LEDs
We analytically calculate the optical emission spectrum of nanolasers and
nano-LEDs based on a model of many incoherently pumped two-level emitters in a
cavity. At low pump rates we find two peaks in the spectrum for large coupling
strengths and numbers of emitters. We interpret the double-peaked spectrum as a
signature of collective Rabi splitting, and discuss the difference between the
splitting of the spectrum and the existence of two eigenmodes. We show that an
LED will never exhibit a split spectrum, even though it can have distinct
eigenmodes. For systems where the splitting is possible we show that the two
peaks merge into a single one when the pump rate is increased. Finally, we
compute the linewidth of the systems, and discuss the influence of
inter-emitter correlations on the lineshape
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