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Light Scattering of Rough Orthogonal Anisotropic Surfaces with Secondary Most Probable Slope Distributions

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Chinese Physics Letters 2011年第8期28卷 133-136页

作者： LI Hai-Xia cheng chuan-fu College of Physics and Electronics Shandong Normal UniversityJinan 250014 Department of Information Science and Technology Shandong University of Politics Science and LawJinan 250014

We study the light scattering of an orthogonal anisotropic rough surface with secondary most probable slope *** is found that the scattered intensity profiles have obvious secondary maxima,and in the direction perpendicular to the plane of incidence,the secondary maxima are oriented in a curve on the observation plane,which is called the orientation *** numerical calculation of the scattering wave fields with the height data of the sample,it is validated that the secondary maxima are induced by the side face element,which constitutes the prismoid structure of the anisotropic *** derive the equation of the quadratic orientation ***,we construct the system for light scattering measurement using a *** scattered intensity profiles are extracted from the images at different angles of incidence along the orientation *** experimental results conform to the theory.

关键词： surface curve theory

Light Scattering Microscopy of Surface and Its Computational Simulation

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Chinese Physics Letters 1999年第6期16卷 397-399页

作者： cheng chuan-fu LIU De-li QI Dong-ping Department of Physics Shandong Normal UniversityJi'nan 250014

The light scattering microscopy is proposed,which reconstructs the height distribution function of a random surface from the speckle intensity of the scattered light *** the computational simulation,we generated the random surfaces of Gaussian correlation and the speckle intensities,and reconstructed the surfaces by Gerchberg-Saxton(G-S)and modified G-S *** simulation proves this microscopy works well.

关键词： wave. speckle random

Waveform Distortions in Femtosecond Laser Pulses Transmitting through Coated Optical Fiber Probes

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Chinese Physics Letters 2010年第6期27卷 221-224页

作者： LIU Gui-Yuan HAN Jun-Ling LIU Man TENG Shu-Yun cheng chuan-fu College of Physics and Electronics Shandong Normal University Jinan 250014 School of Science Shandong 3ianzhu University Jinan 250101 Department of Electronic Engineering Jinan Vocational College Jinan 250103

We calculate the light field in metal-coated optical fiber probes under illumination of femtosecond laser pulses with the three-dimensional finite-difference time-domain method. By choosing the maximum of the calculated light field data in the time period of one light wave cycle at each spatial point, we obtain the amplitude distributions instead of the conventional light field distribution of a time instant. It is found that with an incident plane wave pulse of y-polarization, the output amplitude distributions of y-polarization have roughly a circled-cross-like pattern with two arc-like zero-amplitude zones. By analyzing the y-polarized waveforms versus time at the points near the arc-like zero-amplitude zones, we find that waveform distortions appear at points in the neighborhood of the zero amplitude lines and in the time intervals when two wave-packets overlap.

关键词： ELECTRIC distortion FEMTOSECOND lasers SURFACE coatings OPTICAL fibers FINITE differences TIME-domain analysis OPTICAL polarization

Topological Charge Conversion with Spiral-Slit Screens

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Chinese Physics Letters 2013年第10期30卷 108-111页

作者： LI Zhen-Hua ZHANG Mei-Na LI Xing LIU Chun-Xiang cheng chuan-fu College of Physics and Electronics Shandong Normal UniversityJinan 250014

We propose a method of converting the topological charge(TC)of an incident vortex light wave with spiral-slit *** phase in the incident vortex beam is redistributed via the optical path adjustment realized by changing the in-plane radial distance of the spiral *** numerically calculate the light field with Fresnel diffraction theory,and find the expected TC conversion on the observation *** calculations also show that screens of pinholes distributed in a spiral curve can be used for the implementation instead of spiral *** method can also be used to distinguish the TCs of the incident vortices by reading the diffracted intensity patterns.

关键词： incident vortex topological

Measurement of Random Surface Parameters by Angle-Resolved In-plane Light Scattering with Constant Perpendicular Wave Vector

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Chinese Physics Letters 2011年第2期28卷 105-108页

作者： LI Hai-Xia LIU Chun-Xiang CHEN Xiao-Yi ZHANG Mei-Na cheng chuan-fu College of Physics and Electronics Shandong Normal UniversityJinan 250014 Department of Information Science and Technology Shandong University of Politics Science and LawJinan 250014

We report the experimental method of angle-resolved in-plane light scattering for random surface parameter *** the measurement of the scattered intensity profile at a certain angle of incidence,the perpendicular component of wave vector remains constant,which is realized by controlling the movement of the detector along a specified circular arc *** use the central S-peak and the half-width of the diffused intensity profiles and their variations to obtain the roughness w,the lateral correlation lengthξand roughness exponent a of the rough surface *** measurement copes strictly with the theoretical analysis,and the inherent problem in previous in-plane light scattering experiment is overcome so that the changes of the perpendicular component of wave vector affect the half width a diffused intensity profile and the measurement accuracy.

关键词： plane roughness overcome

Computational Generation and the Simulation of the Light Scattering of Self-Affine Fractal Random Surface

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Chinese Physics Letters 2001年第2期18卷 217-219页

作者： LIU Wen-Xian TENG Shu-Yun ZHANG Ning-Yu LIU De-Li cheng chuan-fu Department of Physics Shandong Normal UniversityJi’nan 250014

We propose a method for the generation of self-affine fractal random surfaces,in which we use Fourier transform and its inversion in the *** light scattering of surfaces of this kind is simulated at different incident angles of *** variation of the full width at half maximum(FWHM)of the intensity profile versus the perpendicular component k_(⊥)of the wave-vector shows clearly the characteristics of the surfaces *** simulation demonstrates how the value of FWHM at k^(2)_(⊥)w^(2)≤1 region and the slope of ln wp-ln k_(⊥)curve at k^(2)_(⊥)w^(2)≥1 region are used,respectively,to extract the lateral correlation lengthξand the roughness exponentα.

关键词： scattering Fractal illumination

The Multi-Scale and the Multi-Fractality Properties of Speckles on Rough Screen Surfaces

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Chinese Physics Letters 2013年第4期30卷 105-109页

作者： ZHANG Mei-Na LI Zhen-Hua CHEN Xiao-Yi LIU Chun-Xiang TENG Shu-Yun cheng chuan-fu College of Physics and Electronics Shandong Normal UniversityJinan 250014 School of Physics and Technology University of JinanJinan 250022

With a microscopic imaging system composed of microscopic objective,lens and CCD,we observe the complicated structures in the speckle fields on the surface of a rough *** is found that such structures contain ridge stripes,large platform-like grains,and shivy grains,exhibiting multiple scales in size and multiple *** shows these structures are formed by different parts of the rough *** experimental curve of the autocorrelation function of the speckle intensity includes the three parts of the central peak,the transition part and the long tail *** the sum of self-affine fractal models with different scales and fractalities,we propose theoretically a triple-scale autocorrelation function to describe the speckle *** of this autocorrelation function to the experimental curve gives the values of such parameters as average speckle sizes and fractalities in different scales of the speckle structures.

关键词： surface. field. speckle

Intensity Distribution and Phase Vortices of Speckle Fields Generated by Multi-Aperture Random Scattering Screens

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Chinese Physics Letters 2010年第3期27卷 155-158页

作者：刘曼宋洪胜陈小艺刘桂媛滕树云程传福 College of Physics and Electronics Shandong Normal University Jinan 250014 School of Mathematical and Physical Sciences Shandong Institute of Light Industry 3inan 250353

The intensity distribution and phase vortices of the speckle fields generated by multi-aperture random scattering screens are simulated, and it is found that the vortices exhibit layer-like structures and the dislocation phenomena occur in the local phase patterns produced by the two-pinhole aperture, whose phase distributions appear as striped structures. For three- or four-pinhole aperture, there are many circular bright spots appearing in the speckle grains, and there is one vortex between the neighboring circular bright spots. The positive and negative phase vortex lattices appear in the phase distributions, and the regions circled by the isothetic phase lines form irregular quadrilaterals or hexagons. Moreover, the relative positions of the vortices or bright spots can be adjusted by changing those of the pinhole apertures.

关键词： Optics quantum optics and lasers

Advancements and Challenges in Organic–Inorganic Composite Solid Electrolytes for All‑Solid‑State Lithium Batteries

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Nano-Micro Letters 2025年第1期17卷 46-97页

作者： Xueyan Zhang Shichao cheng chuankai fu Geping Yin Liguang Wang Yongmin Wu Hua Huo State Key Laboratory of Space Power‑Sources School of Chemistry and Chemical EngineeringHarbin Institute of TechnologyHarbin 150001People’s Republic of China College of Chemical and Biological Engineering Zhejiang UniversityHangzhou 310058People’s Republic of China State Key Laboratory of Space Power-Sources 2965 Dongchuan RoadMinhang DistrictShanghai 200240People’s Republic of China

To address the limitations of contemporary lithium-ion batteries,particularly their low energy density and safety concerns,all-solid-state lithium batteries equipped with solid-state electrolytes have been identified as an up-and-coming *** the various SEs,organic–inorganic composite solid electrolytes(OICSEs)that combine the advantages of both polymer and inorganic materials demonstrate promising potential for large-scale ***,OICSEs still face many challenges in practical applications,such as low ionic conductivity and poor interfacial stability,which severely limit their *** review provides a comprehensive overview of recent research advancements in ***,the influence of inorganic fillers on the main functional parameters of OICSEs,including ionic conductivity,Li+transfer number,mechanical strength,electrochemical stability,electronic conductivity,and thermal stability are systematically *** lithium-ion conduction mechanism of OICSE is thoroughly analyzed and concluded from the microscopic ***,the classic inorganic filler types,including both inert and active fillers,are categorized with special emphasis on the relationship between inorganic filler structure design and the electrochemical performance of ***,the advanced characterization techniques relevant to OICSEs are summarized,and the challenges and perspectives on the future development of OICSEs are also highlighted for constructing superior ASSLBs.

关键词： Composite solid electrolytes Inorganic filler Interfacial stability Li-ion conduction mechanism Characterization techniques