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Electrical properties of photosensitive ZnO/Si heterostructure depending on temperature 光敏ZnO/Si异质结构随温度变化的电学特性
Pub Date : 2021-12-21 DOI: 10.1117/12.2616088
D. Koziarskyi, E. Maistruk, I. Koziarskyi, G. O. Andrushchak
The transmission spectra of ZnO:Al films and I-V-characteristic of the isotype heterojunction ZnO:Al/n-Si fabricated by the method of RF magnetron sputtering of thin ZnO:Al films onto n-Si crystalline substrates were investigated and analyzed. The mechanisms of electron tunneling through the energy barrier of the heterojunction at forward and reverse biases are analyzed. The influence of temperature on the parameters of the heterojunction is determined. The photoelectric properties of the heterostructure are analyzed.
研究和分析了用射频磁控溅射法制备的ZnO:Al薄膜在n-Si晶体衬底上的透射光谱和同型异质结ZnO:Al/n-Si的i - v特性。分析了电子在正向偏置和反向偏置下穿过异质结能垒的机制。确定了温度对异质结参数的影响。分析了异质结构的光电特性。
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引用次数: 1
Software complex for optoelectronic-electronic components and sensors research 光电元件和传感器研究的软件综合体
Pub Date : 2021-12-21 DOI: 10.1117/12.2617390
G. Baryło, O. Boyko, I. Gelzynskyy, R. Holyaka, Z. Hotra, O. Hotra, T. Marusenkova, M. Khilchuk
The main results of RETwix complex development are presented in the paper. RETwix is an universal hardware and software complex for laboratory research, which can be used for investigation both electronic components and arbitrary electrical, thermal, chemical or biochemical processes. Sensors, actuators and signal transducers of the analog front end are used for this purpose. The RETwix complex includes two CV-LAB devices (Capacitance and Voltage LABoratory) and UA-LAB (Universal Analog LABoratory). The principle of measurement transformation and examples of using the RETwix complex are presented.
本文介绍了RETwix复合体开发的主要成果。RETwix是一种用于实验室研究的通用硬件和软件复合体,可用于研究电子元件和任意电气,热,化学或生化过程。传感器、执行器和模拟前端的信号换能器用于此目的。RETwix复合体包括两个CV-LAB设备(电容和电压实验室)和UA-LAB(通用模拟实验室)。介绍了测量变换的原理和使用RETwix复合物的实例。
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引用次数: 1
Auxetic properties of silicon dioxide single crystals 二氧化硅单晶的生长性
Pub Date : 2021-12-21 DOI: 10.1117/12.2614757
M. Raranskiy, A. V. Oliynych-Lysiuk, R. Tashchuk, A. Struk, O. Y. Tashchuk, S. Hulyk
A systematic study of the effect of anomalous deformations and anisotropy of elastic properties on the formation of auxetic properties of stable (α- and β-quartz, α- and β-cristobalite) and metastable (coesite and stishovite) silicon dioxide single crystals was carried out. The characteristic surfaces of Young's moduli, angular distributions of Poisson's ratios and indicating auxeticity surfaces of the above single crystals were constructed. It was found that there is an unambiguous correlation between the anisotropy parameters of the characteristic surfaces of Young’s moduli and the auxeticity of single crystals. It is shown that when approaching the points of phase transformation of α- and β-quartz (TΦ = 846 K), α- and β-cristobalite (TΦ = 1050 K) the auxeticity degree Sa = 1.0, and the extreme values of Poisson's ratios μmin and μmax take negative values and single crystals become absolute auxetics.
系统研究了反常变形和弹性性能各向异性对稳定型(α-和β-石英、α-和β-方英石)和亚稳型(硅辉石和方英石)二氧化硅单晶生长性形成的影响。构造了上述单晶的杨氏模特征面、泊松比角分布面和指示性面。发现单晶杨氏模特征表面的各向异性参数与单晶的互补性之间存在明确的相关关系。结果表明,在α-和β-石英(TΦ = 846 K)、α-和β-方石英(TΦ = 1050 K)相变点附近,α-和β-方石英的互补性度Sa = 1.0,泊松比μmin和μmax极值为负值,单晶成为绝对互补性晶体。
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引用次数: 0
Polarization: singular flaw detection of the microstructure of optically transparent polycarbonate layers 偏振:光学透明聚碳酸酯层微观结构的奇异探伤
Pub Date : 2021-12-21 DOI: 10.1117/12.2617051
Jun Zheng, Zhebo Chen, M. Gorsky, O. Ushenko, Y. Galushko, N. Gorodynska, P. Ryabiy, A. Arkhelyuk, Christina V. Felde, O. Vanchulyak, M. Slyotov, R. Besaha
The article presents the results of determining the possibilities of the polarization-singular approach to improve the efficiency of Mueller-matrix polarimetry in the differential diagnosis of polycrystalline structure of optically transparent polycarbonate layers. The relationship between the characteristic values of the elements of the Mueller matrix and polarization-singular L - states of microscopic images of polycrystalline structure of optically transparent polycarbonate layers was determined. A technique for the experimental determination of the distributions of the characteristic values of Mueller-matrix images has been developed and tested. Statistical criteria for express differential diagnosis of polycrystalline structure of optically transparent polycarbonate layers with different mechanical stresses were determined.
本文介绍了确定偏振奇异法的可能性,以提高穆勒矩阵偏振法在光学透明聚碳酸酯层多晶结构鉴别诊断中的效率。确定了光学透明聚碳酸酯层多晶结构显微图像中Mueller矩阵元素的特征值与偏振奇异L态的关系。一种技术的实验确定分布的特征值的穆勒矩阵图像已经开发和测试。确定了具有不同机械应力的透明聚碳酸酯层多晶结构的快速鉴别诊断的统计准则。
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引用次数: 0
Energy and momentum of the surface plasmon-polariton supported by a thin metal film 由金属薄膜支撑的表面等离子体极化子的能量和动量
Pub Date : 2021-08-13 DOI: 10.1117/12.2615941
A. Bekshaev, O. Angelsky
We study the energy and momentum of the surface plasmon-polariton (SPP) excited in a symmetric 3-layer “insulator-metal-insulator” structure, which is known to support the symmetric (S) mode with the negative group velocity as well as the antisymmetric (AS) mode with only positive energy flow. The electric and magnetic field vectors are calculated via both the phenomenological and the microscopic approach; the latter involves the hydrodynamic model accounting for the quantum statistical effects for the electron gas in metal. Explicit representation for the energy and momentum constituents in the dielectric and in the metal film are obtained, and the wavenumber dependences of the energy and momentum contributions for the whole SPP are analyzed numerically. The various energy and momentum constituents are classified with respect to their origin: “field” or “material”, and the physical nature: orbital (canonical) and spin (Belinfante) momentum contributions. The pictures characteristic for the S and AS modes are systematically compared. The results can be useful for the studies and applications of the SPP-induced thin-film effects, in particular, for the charge and spin dynamics in thin-film plasmonic systems.
我们研究了在对称的3层“绝缘体-金属-绝缘体”结构中激发的表面等离子体-极化子(SPP)的能量和动量,已知该结构支持负群速度的对称(S)模式和只有正能量流的反对称(as)模式。电场矢量和磁场矢量分别通过现象学和微观方法计算;后者涉及计算金属中电子气体量子统计效应的流体力学模型。得到了电介质和金属薄膜中能量和动量成分的显式表示,并对整个SPP中能量和动量贡献的波数依赖性进行了数值分析。各种能量和动量成分根据它们的起源进行分类:“场”或“材料”,以及物理性质:轨道(规范)和自旋(Belinfante)动量贡献。系统地比较了S模式和AS模式的图像特性。这些结果对spp诱导的薄膜效应的研究和应用,特别是对薄膜等离子体系统中的电荷和自旋动力学的研究和应用具有重要意义。
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引用次数: 0
Extraordinary transverse spin: hidden vorticity of the energy flow and momentum distributions in propagating light fields 非凡的横向自旋:传播光场中能量流和动量分布的隐藏涡度
Pub Date : 2021-06-05 DOI: 10.1117/12.2615939
A. Bekshaev
Spatially inhomogeneous fields of electromagnetic guided modes exhibit a complex of extraordinary dynamical properties such as the polarization-dependent transverse momentum, helicity-independent transverse spin, spin associated non-reciprocity and unidirectional propagation, etc. Recently, the remarkable relationship has been established between the spin and propagation features of such fields, expressed through the spin–momentum equations [Proc. Natl. Acad. Sci. 118 (2021) e2018816118] connecting the wave spin with the curl of momentum. Here, the meaning, limitations and specific forms of this correspondence are further investigated, involving the physically transparent and consistent examples of paraxial light fields, plane-wave superpositions and evanescent waves. The conclusion is inferred that the spin–momentum equation is an attribute of guided waves with well defined direction of propagation, and it unites the helicity-independent “extraordinary” transverse spin with the spatially-inhomogeneous longitudinal field momentum (energy flow) density. Physical analogies with the layered hydrodynamic flows and possible generalizations for other wave fields are discussed. The results can be useful in optical trapping, manipulation and the data processing techniques.
空间非均匀的电磁导模场表现出与极化相关的横向动量、与螺旋无关的横向自旋、自旋相关的非互易性和单向传播等特殊的动力学特性。最近,这些场的自旋和传播特性之间建立了显著的关系,通过自旋动量方程表达[Proc. Natl.]。量子力学学报,2011 (6)[j]。在这里,进一步研究了这种对应关系的意义、局限性和具体形式,包括物理上透明和一致的近轴光场、平面波叠加和倏逝波的例子。推导出自旋动量方程是具有明确传播方向的导波的一个属性,它将与螺旋无关的“异常”横向自旋与空间非均匀的纵向场动量(能量流)密度结合起来。讨论了层状流体动力流的物理类比和其他波场的可能推广。研究结果可用于光捕获、操作和数据处理技术。
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引用次数: 0
3D polarization correlometry of object fields of networks of biological crystals 生物晶体网络目标场的三维偏振相关测量
Pub Date : 2020-02-06 DOI: 10.1117/12.2553942
A. Ushenko, A. Dubolazov, O. Litvinenko, V. Bachinskiy, Lin Bin, Guo Bin, C. Zhebo
The results of the study of the relationships between 3D divisions of the optical anisotropy parameters of polycrystalline networks of films of biological fluids of various biochemical composition and layer-by-layer phase cross sections of volume distributions of the magnitude and phase parameters of the "two-point" Stokes vector of a microscopic image are presented. In the framework of the statistical approach using scale-selective wavelet analysis, the values and ranges of statistical 1st-4th order changes are defined, which characterize: • distribution of the values of the modulus and phase of the parameters of the Stokes vector in various phase sections of the object field; • a set of values of the amplitudes of the wavelet coefficients for various scales of the geometric dimensions of the module maps and the phase of the degree of correlation of the parameters of the Stokes vector (DCS).
本文研究了不同生物化学成分的生物流体膜的多晶网络的光学各向异性参数的三维划分与微观图像“两点”Stokes矢量的大小和相位参数的体积分布的逐层相截面之间的关系。在采用尺度选择小波分析的统计方法框架下,定义了统计1 -4阶变化的值和范围,其特征是:•Stokes矢量参数的模量和相位值在目标场各相位段的分布;•一组值的振幅的小波系数的各种尺度的几何尺寸的模块图和相位的斯托克斯矢量(DCS)的相关程度的参数。
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引用次数: 1
Charge transport mechanisms and efficiency spectra of thin-film CdS/CdMgTe heterostructures with different mercury content 不同汞含量CdS/CdMgTe薄膜异质结构的电荷输运机制和效率谱
Pub Date : 2020-02-06 DOI: 10.1117/12.2553919
O. Maslyanchuk, I. Fodchuk, T. Mykytyuk
The electrical and photoelectric properties of thin-film CdS/Cd1-xMgxTe (x = 0-0.07) solar cells are investigated. The measured I-V characteristics of the heterostructures are described in terms of well-known theoretical models. The quantum efficiency spectra are analyzed taking into account the drift and diffusion components, recombination on the front and rear surfaces of the Cd1-xMgxTe absorber layer. Comparison of the calculation results with the experimental data allows to determine the main parameters of the Cd1-xMgxTe layer and diode structure.
研究了薄膜CdS/Cd1-xMgxTe (x = 0-0.07)太阳能电池的电学和光电性能。测量的异质结构的I-V特性用著名的理论模型来描述。考虑了Cd1-xMgxTe吸收层前后表面的漂移和扩散分量、复合等因素,分析了吸收层的量子效率谱。将计算结果与实验数据进行比较,确定了Cd1-xMgxTe层和二极管结构的主要参数。
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引用次数: 0
Stokes-correlometric differentiation of polarization-heterogeneous images of biological tissues and some legal aspects of the use of early diagnosis of diseases stokes -相关分化偏振异质图像的生物组织和一些法律方面的使用疾病的早期诊断
Pub Date : 2020-02-06 DOI: 10.1117/12.2553975
A. Dubolazov, N. Getmantseva, A. V. Getmantsev, Y. Ushenko, M. Gorsky, M. Slyotov, V. Zhytaryuk, N. Penteleichuk
This research contains the results: 1. of the method of Stokes-correlometric mapping, the physical processes of changes in optical anisotropy (distribution of optical axis directions and phase modulation) of biological structured (kidney) and parenchymal (liver) tissues of rat internal organs, which are caused by systemic pathology (diabetes), were identified and analyzed as part of a statistical analysis. 2. of the most sensitive parameters (statistical moments of the 1st – 4th orders of magnitude, the correlation moment of the 4th order) to changes in the distribution structure of the magnitude and phase of the SCS of the 3rd and 4th parameters of the “two-point” parameter of the Stokes polarization heterogeneous microscopic images of histological sections of healthy and diabetic rat kidney and liver tissues. 3. of social and legal aspects of implementation of methods for early diagnosis of systemic diseases in public society.
本研究结果如下:1。利用stokes -相关测图方法,确定并分析了由全身病理(糖尿病)引起的大鼠内脏生物结构(肾)和实质(肝)组织的光学各向异性(光轴方向分布和相位调制)变化的物理过程,作为统计分析的一部分。2. 健康大鼠和糖尿病大鼠肾、肝组织组织切片Stokes偏振异质显微图像的“两点”参数的第3、4个参数的大小和相位分布结构变化的最敏感参数(1 ~ 4个数量级的统计矩、4个数量级的相关矩)。3.在公共社会实施全身性疾病早期诊断方法的社会和法律方面。
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引用次数: 0
Experimental study of light focusing through strongly scattering media using binary amplitude spatial light modulator 双幅空间光调制器对强散射介质光聚焦的实验研究
Pub Date : 2020-02-06 DOI: 10.1117/12.2553684
O. Danko, V. Danko, A. Kovalenko
Current paper considers light focusing through strongly scattering medium using binary amplitude modulation of the incident light. The focusing was performed using a simple sequential algorithm. It consisted of the successive estimation of the influence of every pixel of the spatial light modulator on the intensity of the focal spot and making the decision on its target state. Also, noise characteristics of the imaging system camera-frame-grabber were estimated with further investigation of their influence on the focusing quality. Modulation of the incident light was performed by the liquid crystal spatial light modulator. For more efficient usage of the incident beam energy, pixels were combined in groups (so-called superpixels) and were controlled as one separate segment. We estimated the influence of the size of superpixel on the intensity enhancement in the focal spot maintaining the constant size of the illuminated area. The focusing at different distances behind the sample was performed. It was shown that the size of the focal spot at small focusing distances is determined by the properties of the imaging system lens. Starting from some certain distance, the size of the focal spot depends on the focusing distance and the size of the illuminated area of the sample. Hence, the scattering medium operates like a lens.
本文利用入射光的二元调幅法研究了光在强散射介质中的聚焦。使用简单的顺序算法进行聚焦。它包括逐次估计空间光调制器各像素对焦斑强度的影响并确定其目标状态。同时,对成像系统摄像机-抓帧器的噪声特性进行了估计,并进一步研究了噪声对聚焦质量的影响。采用液晶空间光调制器对入射光进行调制。为了更有效地利用入射光束能量,像素被组合成一组(所谓的超像素),并被控制为一个单独的部分。在保持被照区域尺寸不变的情况下,我们估计了超像素的大小对焦点光强增强的影响。在样品背后不同距离处进行聚焦。结果表明,小聚焦距离下焦斑的大小取决于成像系统透镜的特性。从一定距离开始,焦点光斑的大小取决于聚焦距离和样品照射面积的大小。因此,散射介质就像透镜一样起作用。
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引用次数: 0
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International Conference on Correlation Optics
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