Numerical analysis of scattering fields by a multiple plane grating using shadow theory [0.03%]
基于阴影理论的多平面光栅散射场数值分析
Hideaki Wakabayashi,Masamitsu Asai,Jiro Yamakita
Hideaki Wakabayashi
In the shadow theory, a new description of electromagnetic fields using scattering factors has been employed. This paper presents a new numerical method based on scattering factors for the scattering problem of a composite dielectric gratin...
Improved topographic reconstruction of turbid media in the spatial frequency domain including the determination of the reduced scattering and absorption coefficients [0.03%]
包括散射和吸收系数在内的空间频率域的浑浊介质地形重构改进
Simeon Geiger,Philipp Hank,Alwin Kienle
Simeon Geiger
The separation of scattering and absorption is of great importance for studying the radiative transfer in turbid media. Obtaining the corresponding coefficients for non-flat objects is difficult and needs special consideration. Building on ...
Quantum detector tomography applied to the human visual system: a feasibility study [0.03%]
量子探测层析在人眼视觉系统中的可行性研究
T H A van der Reep,D Molenaar,W Löffler et al.
T H A van der Reep et al.
We show that quantum detector tomography can be applied to the human visual system to explore human perception of photon number states. In detector tomography, instead of using very hard-to-produce photon number states, the response of a de...
Robust numerical solution to the Levi-Civita wavefront coupling problem via level set computation of the point characteristic function [0.03%]
基于水平集计算点特征函数的Levi-Civita波前耦合问题的数值求解方法
Rosa Vila,Javier Portilla,Sergio Barbero
Rosa Vila
The Levi-Civita wavefront coupling problem consists of, given two prescribed wavefronts, obtaining a refractive or reflective surface coupling them. We propose a robust numerical method to solve Levi-Civita's problem, whose rationale is to ...
Hong-Ou-Mandel interference of longitudinal spatially coherent beams [0.03%]
纵向空间相干光束的 Hong-Ou-Mandel 干涉
Gaytri Arya,Preeti Sharma,Bhaskar Kanseri
Gaytri Arya
The Hong-Ou-Mandel (HOM) interference of two light beams having different longitudinal spatial coherence properties is investigated theoretically and experimentally. The normalized second-order correlation function (g (2)) is determined for...
Does the slanted-edge method provide the true value of spatial frequency response? [0.03%]
斜边法能否提供正确的空间频率响应值？
Kazuki Nishi
Kazuki Nishi
The slanted-edge method is commonly used for measuring the spatial frequency response (SFR) of digital imaging systems. To investigate the intrinsic capability of the slanted-edge method, this study formulated a procedure for calculating th...
Discrimination of textures with spatial correlations and multiple gray levels [0.03%]
具有空间相关性和多个灰度级别的纹理的鉴别
Jonathan D Victor,Syed M Rizvi,Jacob W Bush et al.
Jonathan D Victor et al.
Analysis of visual texture is important for many key steps in early vision. We study visual sensitivity to image statistics in three families of textures that include multiple gray levels and correlations in two spatial dimensions. Sensitiv...
Gregory Samelsohn
Gregory Samelsohn
In this paper, a new algorithm for tomographic imaging of perfectly conducting scatterers, with boundary conditions of the Dirichlet or Neumann type, is proposed. The boundary value problem is converted into a volume integral equation with ...
Jasmine M Andersen,Andrew A Voitiv,Patrick C Ford et al.
Jasmine M Andersen et al.
We show that annihilation dynamics between oppositely charged optical vortex pairs can be manipulated by the initial size of the vortex cores, consistent with hydrodynamics. When sufficiently close together, vortices with strongly overlappe...
Inhomogeneous lens design to increase the gain of antennas regardless of the specific focal point [0.03%]
非均匀透镜天线设计：不依赖具体焦点的增益提升方法研究
Mohammad Mahdi Taskhiri
Mohammad Mahdi Taskhiri
In this paper, an inhomogeneous lens is presented based on the ray inserting method (RIM). The focal length is a critical issue in designing kinds of lenses. Usually, the focal point of the lens should be located at the feed phase center. T...