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technospheramag
technospheramag
ТЕХНОСФЕРА_РИЦ
Conferences, exhibition & seminars
A. V. Naumov
Photonics: Refinement Technique DOI: 10.22184/1993-7296.FRos.2024.18.8.592.597
Photonics: Refinement Technique DOI: 10.22184/1993-7296.FRos.2024.18.8.592.597
Photonic Integrated Circuits
A. E. Gabdrakhmanov, E. N. Rybachek, E. M. Yeganova, D. V. Ryazantsev, N. V. Komarova, A. E. Kuznetsov
Development of Charge Trapping SONOS Memory Cells DOI: 10.22184/1993-7296.FRos.2024.18.8.598.607
In this paper, a process for creating a SONOS
memory cell with an improved structure within
the CMOS route according to 1.5 μm process
standards that can be integrated to silicon
photonics is proposed. The resulting memory
has a write voltage of 12 V and an erase voltage
of –13 V. The write speed is 80 ms. The memory
window is more than 3 V with a working
window of 2 V.
Development of Charge Trapping SONOS Memory Cells DOI: 10.22184/1993-7296.FRos.2024.18.8.598.607
In this paper, a process for creating a SONOS
memory cell with an improved structure within
the CMOS route according to 1.5 μm process
standards that can be integrated to silicon
photonics is proposed. The resulting memory
has a write voltage of 12 V and an erase voltage
of –13 V. The write speed is 80 ms. The memory
window is more than 3 V with a working
window of 2 V.
Optical Devices & Systems
A. N. Melnikov
Controlling Mirror Mutual Arrangement in Three-Mirror Telescopes Using Computer-Generated Hologram Optical Elements DOI: 10.22184/1993-7296.FRos.2024.18.8.630.638
Controlling Mirror Mutual Arrangement in Three-Mirror Telescopes Using Computer-Generated Hologram Optical Elements DOI: 10.22184/1993-7296.FRos.2024.18.8.630.638
M. A. Zavyalova, P. S. Zavyalov, A. V. Soldatenko
Confocal Hyperchromatic Optical System with the Enhanced Energy Characteristics DOI: 10.22184/1993-7296.FRos.2024.18.8.622.628
A new concept of a confocal sensor designed
to measure the displacements and surface
microprofiles of the optical transparent
media is proposed. The sensor is based on
a superluminescent diode and a hyperchromatic
lens. The sensor uses a multimode fiber-optic
coupler and a radiation source with a spectral
width of 40 nm. The displacement and elevation
difference of the object are determined
by measuring the spectrum of radiation
reflected from the surface, with isolation of
the dominant wavelength using the special
software algorithms and implementation of
the confocality principle of the sensor’s optical
scheme.
Confocal Hyperchromatic Optical System with the Enhanced Energy Characteristics DOI: 10.22184/1993-7296.FRos.2024.18.8.622.628
A new concept of a confocal sensor designed
to measure the displacements and surface
microprofiles of the optical transparent
media is proposed. The sensor is based on
a superluminescent diode and a hyperchromatic
lens. The sensor uses a multimode fiber-optic
coupler and a radiation source with a spectral
width of 40 nm. The displacement and elevation
difference of the object are determined
by measuring the spectrum of radiation
reflected from the surface, with isolation of
the dominant wavelength using the special
software algorithms and implementation of
the confocality principle of the sensor’s optical
scheme.
Quantum Technologies
V. G. Krishtop
Single-Photon Sources. Review. Part 2 DOI: 10.22184/1993-7296.FRos.2024.18.8.610.620
This review discusses various ways to create
single-photon sources (SPS). The task of
generating single photons can be solved in various
ways, and at the moment there is no one among
them that would be significantly preferable.
The first part of the review discussed the
requirements for single-photon sources and
criteria for characterizing sources. The first part
of the review included single photons sources
based on single ions and based on single atoms.
The second part reviews SPS based on
quantum dots and color centers in crystals.
Single-Photon Sources. Review. Part 2 DOI: 10.22184/1993-7296.FRos.2024.18.8.610.620
This review discusses various ways to create
single-photon sources (SPS). The task of
generating single photons can be solved in various
ways, and at the moment there is no one among
them that would be significantly preferable.
The first part of the review discussed the
requirements for single-photon sources and
criteria for characterizing sources. The first part
of the review included single photons sources
based on single ions and based on single atoms.
The second part reviews SPS based on
quantum dots and color centers in crystals.
Optical Measurements
S. М. Kuznetsov, V. S. Novikov, D. D. Vasimov, P. K. Laptinskaya, V. V. Kuzmin, M. N. Moskovskiy, E. A. Sagitova
Raman Spectroscopy of Vegetable Oils and Omega 3 Fish Oil Supplements: Quantitative Analysis DOI: 10.22184/1993-7296.FRos.2024.18.8.650.659
This paper discusses the potential of Raman
spectroscopy for the characterization of
vegetable oils and dietary supplements
based on polyunsaturated fatty acids of the
omega‑3 family (ω‑3 PUFA). The present study
demonstrates that Raman spectra can be
employed to determine the iodine value of
vegetable oils, form of ω‑3 PUFA, relative total
ω‑3 PUFA content, and ratio of the mass fractions
of eicosapentaenoic (EPA) and docosahexaenoic
(DHA) acids in the Оmega‑3 dietary supplements.
Furthermore, the paper discusses potential
applications of the principal component analysis
(PCA) to Omega‑3 supplement characterization
using Raman spectra.
Raman Spectroscopy of Vegetable Oils and Omega 3 Fish Oil Supplements: Quantitative Analysis DOI: 10.22184/1993-7296.FRos.2024.18.8.650.659
This paper discusses the potential of Raman
spectroscopy for the characterization of
vegetable oils and dietary supplements
based on polyunsaturated fatty acids of the
omega‑3 family (ω‑3 PUFA). The present study
demonstrates that Raman spectra can be
employed to determine the iodine value of
vegetable oils, form of ω‑3 PUFA, relative total
ω‑3 PUFA content, and ratio of the mass fractions
of eicosapentaenoic (EPA) and docosahexaenoic
(DHA) acids in the Оmega‑3 dietary supplements.
Furthermore, the paper discusses potential
applications of the principal component analysis
(PCA) to Omega‑3 supplement characterization
using Raman spectra.
Biophotonics
M. A. Keldysh, O. N. Chervyakova, O. V. Shelepova, I. V. Mitrofanova, I. V. Petrunya, K. A. Sudarikov, A. A. Gulevich, E. N. Baranova
Comparative Analysis of Optical Methods for Detection and Identification of Viral Infection During Monitoring of Vegetati DOI: 10.22184/1993-7296.FRos.2024.18.8.660.669
The article discusses the issues of assessing
the prospects for detecting latent viral
infection for monitoring viral pathogens
using digital processing of images obtained by
an optical digital camera and hyperspectral
images. Information on 13 types of viruses
that have been registered in some regions
where Syringa L. grows is provided. Data on the
species composition of Syringa viruses in the
ecosystems of the Main Botanical Garden and
the Moscow region and their symptoms are
described. Based on the virological examination,
specialized pathogens Lilac ring mottle ilarvirus
(LRMV), Lilac leaf chlorosis ilarvirus (LLCV), as
well as Carnation mottle carmovirus, Cucumber
mosaic cucumovirus, Alfalfa mosaic alfamovirus
and Potato Y potyvirus, which are not typical
for lilacs, were diagnosed on lilac. As a result of
system monitoring, the frequency of occurrence
of seven viruses was determined.
Comparative Analysis of Optical Methods for Detection and Identification of Viral Infection During Monitoring of Vegetati DOI: 10.22184/1993-7296.FRos.2024.18.8.660.669
The article discusses the issues of assessing
the prospects for detecting latent viral
infection for monitoring viral pathogens
using digital processing of images obtained by
an optical digital camera and hyperspectral
images. Information on 13 types of viruses
that have been registered in some regions
where Syringa L. grows is provided. Data on the
species composition of Syringa viruses in the
ecosystems of the Main Botanical Garden and
the Moscow region and their symptoms are
described. Based on the virological examination,
specialized pathogens Lilac ring mottle ilarvirus
(LRMV), Lilac leaf chlorosis ilarvirus (LLCV), as
well as Carnation mottle carmovirus, Cucumber
mosaic cucumovirus, Alfalfa mosaic alfamovirus
and Potato Y potyvirus, which are not typical
for lilacs, were diagnosed on lilac. As a result of
system monitoring, the frequency of occurrence
of seven viruses was determined.
Optical measurements
М. Е. Stepanov, А. А. Vlasov, P. А. Demina, R. А. Akasov, G. Babaeva, V. I. Yusupov, Т. V. Egorova, К. R. Karimullin, А. N. Generalova, А. V. Naumov, Е. V. Khaydukov
Intravital Microscopy – a Window Into the World of Bioprocesses DOI: 10.22184/1993-7296.FRos.2024.18.8.640.648
The article shows the potential of practical
use of the dorsal skin fold optical microscopy
method as an effective diagnostic technology
for biosystems. It has been experimentally
proved that even in the basic formulation, the
presented method allows obtaining a large
amount of useful research data in conditions as
close as possible to native ones.
Intravital Microscopy – a Window Into the World of Bioprocesses DOI: 10.22184/1993-7296.FRos.2024.18.8.640.648
The article shows the potential of practical
use of the dorsal skin fold optical microscopy
method as an effective diagnostic technology
for biosystems. It has been experimentally
proved that even in the basic formulation, the
presented method allows obtaining a large
amount of useful research data in conditions as
close as possible to native ones.
Annual Issue