A. Litvinenko, L. Trifonyuk, A. Pavlyukovich, N. Pavlyukovich, A. Stashkevich, Alexander Olar, E. Kurek, V. Tkachuk
The paper presents the results of experimental testing of methods for azimuthal-invariant polarization mapping of laser induced microscopic images of fluorophores in histological sections of the liver of deceased; time monitoring of changes in the magnitude of statistical moments of the 1st - 4th orders characterizing the distributions of the azimuth and ellipticity of polarization of microscopic images of histological sections of the liver with different age of damage; determination of the diagnostic efficiency (time interval and accuracy) of establishing the age of damage to human internal organs by digital histological methods of mapping maps of azimuth and ellipticity of polarization of microscopic images of samples of histological sections of the brain, liver and kidney, as well as myocardium and lung tissue.
{"title":"Polarization mapping of laser-induced monospectral fields of optically anisotropic fluorophores in forensic diagnostics of the age of the formation of damage to human organs","authors":"A. Litvinenko, L. Trifonyuk, A. Pavlyukovich, N. Pavlyukovich, A. Stashkevich, Alexander Olar, E. Kurek, V. Tkachuk","doi":"10.1117/12.2616662","DOIUrl":"https://doi.org/10.1117/12.2616662","url":null,"abstract":"The paper presents the results of experimental testing of methods for azimuthal-invariant polarization mapping of laser induced microscopic images of fluorophores in histological sections of the liver of deceased; time monitoring of changes in the magnitude of statistical moments of the 1st - 4th orders characterizing the distributions of the azimuth and ellipticity of polarization of microscopic images of histological sections of the liver with different age of damage; determination of the diagnostic efficiency (time interval and accuracy) of establishing the age of damage to human internal organs by digital histological methods of mapping maps of azimuth and ellipticity of polarization of microscopic images of samples of histological sections of the brain, liver and kidney, as well as myocardium and lung tissue.","PeriodicalId":250235,"journal":{"name":"International Conference on Correlation Optics","volume":"188 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116146994","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The technology of quantum cryptography, based on the quantum properties of light, allows a random sequence of bits to be transmitted over an unprotected communication channel in such a way that an intruder's interference in the transmission process generates additional noise in the channel and is detected by legitimate users. One of the important elements of the quantum key distribution system is a single photon detector. In this work proposed quantum cryptographic system that generates only an orthogonal basis (vertical and horizontal) has one semiconductor diode laser used to generate information and synchronization photons and functional diagram of the device for registration of single photons. The developed device allows increasing the quantum efficiency of registration up to 45%.
{"title":"Single photon detector on avalanche photodiode","authors":"P. Shpatar, O. Hres, H. Rozorinov, A. Veryha","doi":"10.1117/12.2615626","DOIUrl":"https://doi.org/10.1117/12.2615626","url":null,"abstract":"The technology of quantum cryptography, based on the quantum properties of light, allows a random sequence of bits to be transmitted over an unprotected communication channel in such a way that an intruder's interference in the transmission process generates additional noise in the channel and is detected by legitimate users. One of the important elements of the quantum key distribution system is a single photon detector. In this work proposed quantum cryptographic system that generates only an orthogonal basis (vertical and horizontal) has one semiconductor diode laser used to generate information and synchronization photons and functional diagram of the device for registration of single photons. The developed device allows increasing the quantum efficiency of registration up to 45%.","PeriodicalId":250235,"journal":{"name":"International Conference on Correlation Optics","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128189323","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Samila, A. Khandozhko, G. Lastivka, V. Khandozhko
Using the continuous NQR method with synchronous detection in the sweep mode, in melt-grown layered InSe single crystals, the 115In NQR spectra were studied for four 115In resonance transitions with spin 9/2, the average values of which only approximately satisfied the ratio v1:v2:v3:v4 = 1: 2: 3: 4. It is established that for higher-order transitions there is a deviation of the frequency multiplicity. In particular, it is shown that additional lines are observed in multiplet groups for higher-order transitions, which, in our opinion, is due to the presence of hexadecapole interaction of 115In nuclei with the electric field gradient in InSe.
{"title":"Evaluation of the contribution of higher-order electron-nuclear interactions to the NQR frequencies using 115In spectra in InSe","authors":"A. Samila, A. Khandozhko, G. Lastivka, V. Khandozhko","doi":"10.1117/12.2615420","DOIUrl":"https://doi.org/10.1117/12.2615420","url":null,"abstract":"Using the continuous NQR method with synchronous detection in the sweep mode, in melt-grown layered InSe single crystals, the 115In NQR spectra were studied for four 115In resonance transitions with spin 9/2, the average values of which only approximately satisfied the ratio v1:v2:v3:v4 = 1: 2: 3: 4. It is established that for higher-order transitions there is a deviation of the frequency multiplicity. In particular, it is shown that additional lines are observed in multiplet groups for higher-order transitions, which, in our opinion, is due to the presence of hexadecapole interaction of 115In nuclei with the electric field gradient in InSe.","PeriodicalId":250235,"journal":{"name":"International Conference on Correlation Optics","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122486667","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
I. Fodchuk, Y. Roman, S. Balovsyak, S. Romanyuk, I. Yanchuk, A. Kuzmin, M. Solodkyi, P. Lytvyn
X-ray moiré images arising from the interaction of deformation fields formed by two perpendicular rows of concentrated loads on the output surface of the LLL interferometer analyzer are calculated. The dynamics of formation of moiré images in case of change of distance between rows is investigated. The prospect of using the fractal dimension of moiré images calculated on the basis of Fourier spectra is shown.
{"title":"Peculiarities of formation of X-ray moiré images on deformation fields created by set of concentrated forces","authors":"I. Fodchuk, Y. Roman, S. Balovsyak, S. Romanyuk, I. Yanchuk, A. Kuzmin, M. Solodkyi, P. Lytvyn","doi":"10.1117/12.2617083","DOIUrl":"https://doi.org/10.1117/12.2617083","url":null,"abstract":"X-ray moiré images arising from the interaction of deformation fields formed by two perpendicular rows of concentrated loads on the output surface of the LLL interferometer analyzer are calculated. The dynamics of formation of moiré images in case of change of distance between rows is investigated. The prospect of using the fractal dimension of moiré images calculated on the basis of Fourier spectra is shown.","PeriodicalId":250235,"journal":{"name":"International Conference on Correlation Optics","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121106657","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
L. Trifonyuk, A. Strashkevich, N. Pavlyukovich, A. Pavlyukovich, Y. Tomka, V. Zhytaryuk, V. Tkachuk
The paper presents the results of the possibility of a polarization-interference approach to the analysis of microscopic images of biological preparations in the differential diagnosis [1-7] of benign and malignant prostate tumors with different degrees of differentiation. Measurements and analysis of maps and histograms of the distribution of the local contrast value of polarization-interference distributions of microscopic images of biological preparations of the prostate. Determination of the relationship between the statistical moments of the 1st - 4th orders, characterizing the distributions of the value of the local contrast of polarization-interference distributions of microscopic images of biological preparations of the prostate [8-12]. Determination of statistical criteria for polarization-interference diagnosis of histological sections of biopsy of adenoma and adenocarcinoma of the prostate with varying degrees of differentiation. Determination of operational characteristics (sensitivity, specificity, accuracy) of the diagnostic power [13-19] of the polarization interferometry method for differential diagnosis of histological sections of biopsy of adenoma and adenocarcinoma of the prostate with varying degrees of differentiation.
{"title":"Polarization interference mapping of microscopic images of protein fluorofores in the differential diagnosis of benign and malignant prostate tumours","authors":"L. Trifonyuk, A. Strashkevich, N. Pavlyukovich, A. Pavlyukovich, Y. Tomka, V. Zhytaryuk, V. Tkachuk","doi":"10.1117/12.2616836","DOIUrl":"https://doi.org/10.1117/12.2616836","url":null,"abstract":"The paper presents the results of the possibility of a polarization-interference approach to the analysis of microscopic images of biological preparations in the differential diagnosis [1-7] of benign and malignant prostate tumors with different degrees of differentiation. Measurements and analysis of maps and histograms of the distribution of the local contrast value of polarization-interference distributions of microscopic images of biological preparations of the prostate. Determination of the relationship between the statistical moments of the 1st - 4th orders, characterizing the distributions of the value of the local contrast of polarization-interference distributions of microscopic images of biological preparations of the prostate [8-12]. Determination of statistical criteria for polarization-interference diagnosis of histological sections of biopsy of adenoma and adenocarcinoma of the prostate with varying degrees of differentiation. Determination of operational characteristics (sensitivity, specificity, accuracy) of the diagnostic power [13-19] of the polarization interferometry method for differential diagnosis of histological sections of biopsy of adenoma and adenocarcinoma of the prostate with varying degrees of differentiation.","PeriodicalId":250235,"journal":{"name":"International Conference on Correlation Optics","volume":"80 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123147928","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
E. Rudenko, T. Kyrychok, V. Panarin, M. Svavilnyi, D. Polotsky, M. Skoryk, V. Baglai, N. Talimonova, A. Novytska
The influence of the helicon discharge on the formation of the relief and chemical composition of the surface of single phase brass L63 is investigated. Two stages of formation of the structure of the sprayed layer of brass substrate during processing are revealed - smoothing of the surface relief and selective spraying of phase components of brass, which will create a surface with the necessary parameters to increase the adhesion of protective CrN coating..
{"title":"Influence of helicon discharge treatment on ensuring adhesive strength of protective PVD coating CrN on brass-based forms of intaglio printing","authors":"E. Rudenko, T. Kyrychok, V. Panarin, M. Svavilnyi, D. Polotsky, M. Skoryk, V. Baglai, N. Talimonova, A. Novytska","doi":"10.1117/12.2615570","DOIUrl":"https://doi.org/10.1117/12.2615570","url":null,"abstract":"The influence of the helicon discharge on the formation of the relief and chemical composition of the surface of single phase brass L63 is investigated. Two stages of formation of the structure of the sprayed layer of brass substrate during processing are revealed - smoothing of the surface relief and selective spraying of phase components of brass, which will create a surface with the necessary parameters to increase the adhesion of protective CrN coating..","PeriodicalId":250235,"journal":{"name":"International Conference on Correlation Optics","volume":"109 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134341990","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In this paper a new approach that enables to analyze the structure and reconstruct a rough surface with inhomogeneities is suggested, for which the heights distribution from the trough to the upper point is about 20 nm. For such diagnostics, carbon nanoparticles are used, which are characterized by luminescence in the yellow-green region of the spectrum and such a value of the dipole moment, which makes it possible to control the distribution of nanoparticles over the surface even in the presence of an external electric field. As a probe for diagnosing nanoparticles, it is suggested to use structured light with a significant longitudinal field component, which largely removes the limitations imposed by the transverse resolution of the optical system. The recorded luminescence of carbon nanoparticles with dipole moment oriented parallel to the longitudinal component of the field, enabled not only to reproduce the location of maxima and minima of the surface with an accuracy of 12.9%, but also to reconstruct the landscape of the studied surface itself at a level of 6.76% error.
{"title":"New methods for measuring of surface landscape","authors":"C. Zenkova, D. Ivanskyi, V. Tkachuk, Y. Wenjun","doi":"10.1117/12.2615517","DOIUrl":"https://doi.org/10.1117/12.2615517","url":null,"abstract":"In this paper a new approach that enables to analyze the structure and reconstruct a rough surface with inhomogeneities is suggested, for which the heights distribution from the trough to the upper point is about 20 nm. For such diagnostics, carbon nanoparticles are used, which are characterized by luminescence in the yellow-green region of the spectrum and such a value of the dipole moment, which makes it possible to control the distribution of nanoparticles over the surface even in the presence of an external electric field. As a probe for diagnosing nanoparticles, it is suggested to use structured light with a significant longitudinal field component, which largely removes the limitations imposed by the transverse resolution of the optical system. The recorded luminescence of carbon nanoparticles with dipole moment oriented parallel to the longitudinal component of the field, enabled not only to reproduce the location of maxima and minima of the surface with an accuracy of 12.9%, but also to reconstruct the landscape of the studied surface itself at a level of 6.76% error.","PeriodicalId":250235,"journal":{"name":"International Conference on Correlation Optics","volume":"328 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133536270","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Energy spectrum, wave functions and binding energies of the electron to the donor impurity ion located in the center of a multilayer spherical quantum dot (MSQD) consisting of a core (GaAs) and two spherical shells (AlxGa1–xAs and GaAs) were studied within the effective mass approximation. The magnetic field influence on the energy spectrum and wave functions of the electron is calculated by the diagonalization method. It is shown that the decrease of the external shell thickness as well as the increase of the magnetic field induction changes the electron localization in the nanosystem and it significantly affects the binding energy of the electron with the impurity, photoionization cross section (PCS) and intersubband absorption coefficient. The position of the PCS peak associated with the quantum transition of an electron from the ground state to the 1p0 state shifts to the region of higher energies, and its height decreases. At the same time, the height of PCS peaks associated with quantum transitions to higher excited states increases.
{"title":"Optical absorption, photoionization and binding energy of shallow donor impurity in spherical multilayered quantum dot","authors":"V. Holovatsky, N. Holovatska, M. Chubrei","doi":"10.1117/12.2614673","DOIUrl":"https://doi.org/10.1117/12.2614673","url":null,"abstract":"Energy spectrum, wave functions and binding energies of the electron to the donor impurity ion located in the center of a multilayer spherical quantum dot (MSQD) consisting of a core (GaAs) and two spherical shells (AlxGa1–xAs and GaAs) were studied within the effective mass approximation. The magnetic field influence on the energy spectrum and wave functions of the electron is calculated by the diagonalization method. It is shown that the decrease of the external shell thickness as well as the increase of the magnetic field induction changes the electron localization in the nanosystem and it significantly affects the binding energy of the electron with the impurity, photoionization cross section (PCS) and intersubband absorption coefficient. The position of the PCS peak associated with the quantum transition of an electron from the ground state to the 1p0 state shifts to the region of higher energies, and its height decreases. At the same time, the height of PCS peaks associated with quantum transitions to higher excited states increases.","PeriodicalId":250235,"journal":{"name":"International Conference on Correlation Optics","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132141946","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
P. Chavel, T. Labardens, M. Hébert, L. Simonot, Yvan Sortais, G. Obein
In this presentation, we discuss the implications of increasing requirements on angular resolution in measuring the BRDF, the Bidirectional Reflection Diffusion Function, in particular for the control of manufactured artefacts. To account for fast angular variations with respect to the direction of illumination or to the direction of observation, coherence requirements increase, and speckle appears. However, speckle should not be considered as part of the BRDF. Means to adjust the definition of the BRDF and to circumvent the effect of speckle include an analysis of spatial and temporal coherence in the characterization instruments. In particular, the effects of spectral width on the speckle features in scattering diagrams are discussed qualitatively.
{"title":"Evidence for the need to update the definition of the BRDF - spectral considerations","authors":"P. Chavel, T. Labardens, M. Hébert, L. Simonot, Yvan Sortais, G. Obein","doi":"10.1117/12.2616107","DOIUrl":"https://doi.org/10.1117/12.2616107","url":null,"abstract":"In this presentation, we discuss the implications of increasing requirements on angular resolution in measuring the BRDF, the Bidirectional Reflection Diffusion Function, in particular for the control of manufactured artefacts. To account for fast angular variations with respect to the direction of illumination or to the direction of observation, coherence requirements increase, and speckle appears. However, speckle should not be considered as part of the BRDF. Means to adjust the definition of the BRDF and to circumvent the effect of speckle include an analysis of spatial and temporal coherence in the characterization instruments. In particular, the effects of spectral width on the speckle features in scattering diagrams are discussed qualitatively.","PeriodicalId":250235,"journal":{"name":"International Conference on Correlation Optics","volume":"186 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122053564","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
S. Balovsyak, O. Derevyanchuk, H. Kravchenko, O. Kroitor, V. Tomash
This article describes a computer system for increasing the local contrast of railway images obtained with digital video cameras. The local contrast of the images increases within the rectangular windows, for each of which the minimum and maximum brightness values are determined. Based on such extreme brightness values, the lower and upper envelope brightness of the image are calculated. By smoothing of the envelopes the artefacts that appear in the image after increasing the local contrast based on its envelopes are significantly reduced. The images are read to the control computer from USB video cameras. The software implementation of image processing is created in Python.
{"title":"Computer system for increasing the local contrast of railway transport images","authors":"S. Balovsyak, O. Derevyanchuk, H. Kravchenko, O. Kroitor, V. Tomash","doi":"10.1117/12.2615761","DOIUrl":"https://doi.org/10.1117/12.2615761","url":null,"abstract":"This article describes a computer system for increasing the local contrast of railway images obtained with digital video cameras. The local contrast of the images increases within the rectangular windows, for each of which the minimum and maximum brightness values are determined. Based on such extreme brightness values, the lower and upper envelope brightness of the image are calculated. By smoothing of the envelopes the artefacts that appear in the image after increasing the local contrast based on its envelopes are significantly reduced. The images are read to the control computer from USB video cameras. The software implementation of image processing is created in Python.","PeriodicalId":250235,"journal":{"name":"International Conference on Correlation Optics","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124861875","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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