I. Fodchuk, I. Hutsuliak, V. Dovganyuk, A. Kuzmin, Y. Roman, M. Solodkyi, P. Pynuk, P. Lytvyn, O. Gudymenko, I. Syvorotka, M. Barchuk
Crystal and magnetic domain structures of iron garnet films with different thicknesses are studied by means of atomic and magnetic force scanning microscopies as well as by means of high-resolution Х-ray diffraction. The model of the garnet films as a set of vertical columns with certain lateral sizes is proposed and substantiated. Within this model, X-ray intensity distributions in the vicinity of the reciprocal lattice points are calculated using the Monte Carlo approach to determine densities of two dislocation types with different Burgers vectors.
{"title":"X-ray investigations of structure of thick YIG epitaxial systems of different growth parameters","authors":"I. Fodchuk, I. Hutsuliak, V. Dovganyuk, A. Kuzmin, Y. Roman, M. Solodkyi, P. Pynuk, P. Lytvyn, O. Gudymenko, I. Syvorotka, M. Barchuk","doi":"10.1117/12.2615833","DOIUrl":"https://doi.org/10.1117/12.2615833","url":null,"abstract":"Crystal and magnetic domain structures of iron garnet films with different thicknesses are studied by means of atomic and magnetic force scanning microscopies as well as by means of high-resolution Х-ray diffraction. The model of the garnet films as a set of vertical columns with certain lateral sizes is proposed and substantiated. Within this model, X-ray intensity distributions in the vicinity of the reciprocal lattice points are calculated using the Monte Carlo approach to determine densities of two dislocation types with different Burgers vectors.","PeriodicalId":250235,"journal":{"name":"International Conference on Correlation Optics","volume":"1 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":"129597276","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 paper describes the stabilizing effect of random phase diffuser applied at recording or synthesis of Fourier hologram. The stabilizing effect is meant here as ability to keep quality of the image formed by Fourier hologram or kinoform in terms of preserving the main structure of intensity distribution under wavefront distortions of different scale in restoring beam. A theoretical explanation to the effect is given as converting of convolution of ideal image with hardware function of the system from coherent to non-coherent. Demonstrated are the results of computational and real experiments with synthesized Fourier hologram and SLM device. A test random wavefront distortion is taken for the experiments. Stabilization is demonstrated for the scale of distortion as large as approximately 5π of amplitude.
{"title":"Stabilizing effect of random phase diffuser against wavefront distortions to the intensity distribution formed by Fourier hologram","authors":"A. Derzhypolskyi, O. Gnatovskyi, L. Derzhypolska","doi":"10.1117/12.2615923","DOIUrl":"https://doi.org/10.1117/12.2615923","url":null,"abstract":"The paper describes the stabilizing effect of random phase diffuser applied at recording or synthesis of Fourier hologram. The stabilizing effect is meant here as ability to keep quality of the image formed by Fourier hologram or kinoform in terms of preserving the main structure of intensity distribution under wavefront distortions of different scale in restoring beam. A theoretical explanation to the effect is given as converting of convolution of ideal image with hardware function of the system from coherent to non-coherent. Demonstrated are the results of computational and real experiments with synthesized Fourier hologram and SLM device. A test random wavefront distortion is taken for the experiments. Stabilization is demonstrated for the scale of distortion as large as approximately 5π of amplitude.","PeriodicalId":250235,"journal":{"name":"International Conference on Correlation Optics","volume":"1 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":"128640490","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 Sagnac interferometer’s ring structure enables counter propagating light modes to periodically encounter the same optical elements, effectively simulating infinite periodic potential of a one dimensional crystal. This discrete translational symmetry causes the dispersion of counter propagating beams to acquire a band structure. The band gap between modes arise when their degeneracy is lifted by introducing non-reciprocal effects such as rotation of the interferometer which breaks the time reversal symmetry for all but certain discrete values of angular rotation frequencies at which the two bands cross each other. The coupling between counter propagating modes is examined in a two dimensional state space. We study the interplay between these optical level crossings and Berry curvature to show the accumulation of wave vector dependent Berry phase
{"title":"Optical bandgaps, level crossings and Berry phase in a rotating Sagnac Interferometer","authors":"H. Srinivasan, N. Viswanathan","doi":"10.1117/12.2615475","DOIUrl":"https://doi.org/10.1117/12.2615475","url":null,"abstract":"A Sagnac interferometer’s ring structure enables counter propagating light modes to periodically encounter the same optical elements, effectively simulating infinite periodic potential of a one dimensional crystal. This discrete translational symmetry causes the dispersion of counter propagating beams to acquire a band structure. The band gap between modes arise when their degeneracy is lifted by introducing non-reciprocal effects such as rotation of the interferometer which breaks the time reversal symmetry for all but certain discrete values of angular rotation frequencies at which the two bands cross each other. The coupling between counter propagating modes is examined in a two dimensional state space. We study the interplay between these optical level crossings and Berry curvature to show the accumulation of wave vector dependent Berry phase","PeriodicalId":250235,"journal":{"name":"International Conference on Correlation Optics","volume":"61 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":"124650461","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}
O. Maslyanchuk, I. Fodchuk, M. Solovan, I. Boledzyuk, A. Kuzmin, V. Gnatyuk, T. Aoki
The defects structure, charge collection, and detection efficiency of the Ni(NiO)/p-CdTe/Au/Cu Schottky-diode detector have been investigated. The spectroscopic properties of the obtained heterostructures have been studied experimentally and analyzed theoretically. The optimal reverse bias voltage for higher performance of the detectors under study was determined. The reasons of poor charge collection in the detectors and low detection efficiency of photons emitted by an 241Am (59.5 keV) radioisotope have been established and discussed. The techniques of increasing the functional parameters of Ni(NiO)/p-CdTe/Au/Cu Schottky diodes have the investigated and the optimal ways for improvement of the detector performance have been formulated.
{"title":"Crystal defects and charge collection in CdTe-based x- and gamma-ray detectors","authors":"O. Maslyanchuk, I. Fodchuk, M. Solovan, I. Boledzyuk, A. Kuzmin, V. Gnatyuk, T. Aoki","doi":"10.1117/12.2615504","DOIUrl":"https://doi.org/10.1117/12.2615504","url":null,"abstract":"The defects structure, charge collection, and detection efficiency of the Ni(NiO)/p-CdTe/Au/Cu Schottky-diode detector have been investigated. The spectroscopic properties of the obtained heterostructures have been studied experimentally and analyzed theoretically. The optimal reverse bias voltage for higher performance of the detectors under study was determined. The reasons of poor charge collection in the detectors and low detection efficiency of photons emitted by an 241Am (59.5 keV) radioisotope have been established and discussed. The techniques of increasing the functional parameters of Ni(NiO)/p-CdTe/Au/Cu Schottky diodes have the investigated and the optimal ways for improvement of the detector performance have been formulated.","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":"126008006","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, we study a three-dimensional Lorenz system that demonstrates chaotic behavior. We present the state equations and mathematical analysis of the system. We use a system-design platform, like LabView, to study and analyze main information properties, such as chaotic attractors, time series, bifurcation diagram, and dynamic behavior of the overall system. We implemented an Arduino Uno based design to display chaotic attractors of the Lorenz system. The Arduino is connected to a computer through the USB port, while graphs were uploaded using program software ArduinoIDE. Finally, the connection scheme and programming code are also presented.
{"title":"Chaotic Lorenz system: analysis of the main information properties, circuit realization and LED visualization using Arduino","authors":"V. Rusyn, A. Sambas, Maria S. Papadopoulou","doi":"10.1117/12.2615516","DOIUrl":"https://doi.org/10.1117/12.2615516","url":null,"abstract":"In this paper, we study a three-dimensional Lorenz system that demonstrates chaotic behavior. We present the state equations and mathematical analysis of the system. We use a system-design platform, like LabView, to study and analyze main information properties, such as chaotic attractors, time series, bifurcation diagram, and dynamic behavior of the overall system. We implemented an Arduino Uno based design to display chaotic attractors of the Lorenz system. The Arduino is connected to a computer through the USB port, while graphs were uploaded using program software ArduinoIDE. Finally, the connection scheme and programming code are also presented.","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":"127168365","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}
V. Vasyuk, A. Kalashnikov, V. Protsyuk, I. Soltys, A. Motrich, Y. Ushenko, P. Gorodenskiy, V. Gantyuk
The paper presents a structural and logical diagram and an analytical description of the differential diagnosis of aseptic and septic loosening of the cup of an artificial hip joint endoprosthesis using spectral-selective laser autofluorescence microscopy of coordinate distribution maps (MIF) and correlation (MCF) fluorescence intensity of polycrystalline films of synovial fluid (SF). The results of the statistical analysis [1-5] of the distributions of the MIF and MCF values of polycrystalline SF films of patients from the control group and groups with different severity of pathology of the hip joint are presented. The sensitivity, specificity and accuracy [6-9] of the method of spectral-selective laser autofluorescence microscopy MIF and MCF of the fluorescence intensity of polycrystalline films of hip joint CF have been established.
{"title":"Differential diagnosis of aseptic and septic loosening of the cup of the artificial hip joint endoprosthesis by methods of spectral-selective laser autofluorescence microscopy","authors":"V. Vasyuk, A. Kalashnikov, V. Protsyuk, I. Soltys, A. Motrich, Y. Ushenko, P. Gorodenskiy, V. Gantyuk","doi":"10.1117/12.2616672","DOIUrl":"https://doi.org/10.1117/12.2616672","url":null,"abstract":"The paper presents a structural and logical diagram and an analytical description of the differential diagnosis of aseptic and septic loosening of the cup of an artificial hip joint endoprosthesis using spectral-selective laser autofluorescence microscopy of coordinate distribution maps (MIF) and correlation (MCF) fluorescence intensity of polycrystalline films of synovial fluid (SF). The results of the statistical analysis [1-5] of the distributions of the MIF and MCF values of polycrystalline SF films of patients from the control group and groups with different severity of pathology of the hip joint are presented. The sensitivity, specificity and accuracy [6-9] of the method of spectral-selective laser autofluorescence microscopy MIF and MCF of the fluorescence intensity of polycrystalline films of hip joint CF have been established.","PeriodicalId":250235,"journal":{"name":"International Conference on Correlation Optics","volume":"86 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":"127852377","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}
M. Garazdyuk, V. Bachinskiy, Y. Ushenko, P. Gorodenskiy, V. Gantyuk, M. Slyotov, I. Fesiv, L. Hulei, I. Oliinyk
The structural-logical diagram and research design by the methods of polarization-phase tomography of linear dichroism of the polycrystalline structure [1-5] of histological sections of the brain are presented. Differential diagnosis of the formation of hemorrhages of traumatic genesis, cerebral infarction of ischemic and hemorrhagic genesis by the method of differential Mueller-matrix mapping of amplitude anisotropy - linear dichroism maps (ALD) of histological brain sections and operational characteristics of the method of their statistical analysis. Differential diagnosis of the prescription of the formation of hemorrhages of traumatic genesis, cerebral infarction, ischemic and hemorrhagic genesis by the method of differential Mueller-matrix mapping of amplitude anisotropy - temporal dynamics of changes in the statistical structure of ALD maps of histological brain sections.
{"title":"Forensic medical assessment of cerebral infarction, hemorrhagic hemorrhages of traumatic genesis and determination of the duration of their formation methods of spectral-selective laser-induced direct polarization-phase tomography","authors":"M. Garazdyuk, V. Bachinskiy, Y. Ushenko, P. Gorodenskiy, V. Gantyuk, M. Slyotov, I. Fesiv, L. Hulei, I. Oliinyk","doi":"10.1117/12.2616659","DOIUrl":"https://doi.org/10.1117/12.2616659","url":null,"abstract":"The structural-logical diagram and research design by the methods of polarization-phase tomography of linear dichroism of the polycrystalline structure [1-5] of histological sections of the brain are presented. Differential diagnosis of the formation of hemorrhages of traumatic genesis, cerebral infarction of ischemic and hemorrhagic genesis by the method of differential Mueller-matrix mapping of amplitude anisotropy - linear dichroism maps (ALD) of histological brain sections and operational characteristics of the method of their statistical analysis. Differential diagnosis of the prescription of the formation of hemorrhages of traumatic genesis, cerebral infarction, ischemic and hemorrhagic genesis by the method of differential Mueller-matrix mapping of amplitude anisotropy - temporal dynamics of changes in the statistical structure of ALD maps of histological brain sections.","PeriodicalId":250235,"journal":{"name":"International Conference on Correlation Optics","volume":"408 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":"133206557","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}
T. Kovaliuk, M. Solovan, A. Mostovyi, Ivan G. Оrletskyi
TiN thin films were deposited are deposited by DC reactive magnetron sputtering. The effect of annealing on the electrical and optical properties of the thin films was investigated. Temperature dependences of the resistance R of the TiN films were measured within the temperature range T ÷ 295-420 K. There was established that all samples under investigation had n-type of conductivity. Based on the dependences (αhν)2 = f(hν), the presence of direct allowed interband optical transitions in the TiN thin films is established and the optical band gap values before and after annealing are determined. Annealing in nitrogen atmospheres led to an increase in the optical width of the band gap, which may be due to deviations from the stoichiometric composition of thin TiN films during heat treatment.
{"title":"Effect of annealing on electrical and optical properties of TiN thin films","authors":"T. Kovaliuk, M. Solovan, A. Mostovyi, Ivan G. Оrletskyi","doi":"10.1117/12.2615178","DOIUrl":"https://doi.org/10.1117/12.2615178","url":null,"abstract":"TiN thin films were deposited are deposited by DC reactive magnetron sputtering. The effect of annealing on the electrical and optical properties of the thin films was investigated. Temperature dependences of the resistance R of the TiN films were measured within the temperature range T ÷ 295-420 K. There was established that all samples under investigation had n-type of conductivity. Based on the dependences (αhν)2 = f(hν), the presence of direct allowed interband optical transitions in the TiN thin films is established and the optical band gap values before and after annealing are determined. Annealing in nitrogen atmospheres led to an increase in the optical width of the band gap, which may be due to deviations from the stoichiometric composition of thin TiN films during heat treatment.","PeriodicalId":250235,"journal":{"name":"International Conference on Correlation Optics","volume":"1 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":"124201293","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}
We demonstrate a simple scheme for generation and control of microbubbles using a focused beam of a continuous infrared laser. The main mechanisms of manipulation of microbubbles are based on thermal and optical phenomena. The bubble moves towards the maximum heat and towards the minimum light intensity. We adjusted the ratio between thermal and optical forces, the values of the energy density of the focused beam, at constant laser power. In this case, the bubbles moved from the periphery of the beam to its center and vice versa. Displacements of bubbles also occurred during the change of azimuth of linear polarization of the incident beam.
{"title":"Control of microbubbles in water","authors":"O. Angelsky, A. Maksimyak, P. Maksimyak","doi":"10.1117/12.2615560","DOIUrl":"https://doi.org/10.1117/12.2615560","url":null,"abstract":"We demonstrate a simple scheme for generation and control of microbubbles using a focused beam of a continuous infrared laser. The main mechanisms of manipulation of microbubbles are based on thermal and optical phenomena. The bubble moves towards the maximum heat and towards the minimum light intensity. We adjusted the ratio between thermal and optical forces, the values of the energy density of the focused beam, at constant laser power. In this case, the bubbles moved from the periphery of the beam to its center and vice versa. Displacements of bubbles also occurred during the change of azimuth of linear polarization of the incident beam.","PeriodicalId":250235,"journal":{"name":"International Conference on Correlation Optics","volume":"71 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":"124420918","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 investigation of color reproduction in offset printing in field of stabilization optical and halftone characteristics can affect to quality of pressrun. Therefore this research devoted to analysis of quality parameters at offset printing for neutral tone reproduction at different technology modes. The dynamics of changing printing parameters and levels of quality press run was investigated. As a result the effective modes of prepress and press technology for offset printing were found.
{"title":"Stabilization of imprint’s optical parameters in offset printing","authors":"Yaroslav Zorenko, V. Skyba","doi":"10.1117/12.2615527","DOIUrl":"https://doi.org/10.1117/12.2615527","url":null,"abstract":"The investigation of color reproduction in offset printing in field of stabilization optical and halftone characteristics can affect to quality of pressrun. Therefore this research devoted to analysis of quality parameters at offset printing for neutral tone reproduction at different technology modes. The dynamics of changing printing parameters and levels of quality press run was investigated. As a result the effective modes of prepress and press technology for offset printing were found.","PeriodicalId":250235,"journal":{"name":"International Conference on Correlation Optics","volume":"52 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":"127703470","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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