Bessel相关论文
We demonstrate,both analytically and experimentally,free-space pin-like optical vortex beams (POVBs). Such angular-momen......
The applications of terahertz(THz)technology can be greatly extended using non-diffractive beams with unique field distr......
Geometry parameters of optical fiber are crucial in evaluating the quality of the optical fiber.Near⁃field light distri......
<正> The measurement of vibration amplitudes ranging from several angstroms to several hundred angstroms is a subject of......
In this paper, under some assumptions on the flow with a low Mach number, we study the nonexistence of a global nontrivi......
Given a principal value convolution on the Heisenberg group Hn = Cn × R, we study the relation between its Laguerre......
The general expressions of finite Hankel transform are naturally deduced with the help of the property of Bessel functio......
The Herz-type Sobolev spaces are introduced and the Sobolev theorem is established. The Herz-type Bessel potential space......
A series solution for surface motion amplification due to underground twin tunnels:incident SV waves
A series solution of displacement response of the ground surface in the presence of underground twin tunnelssubjected t......
采用全差分运算放大器、无源电阻以及用作可变电阻的MOS管设计实现了全差分R MOSFET C四阶Bessel有源低通滤波器 ,在所提出的电路......
Electronic and Shallow Impurity States in Semiconductor Heterostructures Under an Applied Electric F
With the use of variational method to solve the effective mass equation, we have studied the electronicand sballow impu......
In this paper, the principle of spatial nonlocal empirical pseudopotential and its detailed calculation procedure is pre......
The average intensity of finite laser beam propagating through turbulent atmosphere is calculated from the extended Huyg......
向列子(Nematicons)是向列相液晶中传输的自陷光束,包括空间光孤子和空间光呼吸子．向列子的传输特性由非局域非线性薛定谔方程(非线......
A novel and precise micron-scale nanosecond laser spot measurement based on film-scanning method is presented.The method......
This paper studies the propagation properties of Gauss-Bessel beams in a turbulent atmosphere.Based on the extended Huyg......
Relation between Debye series and generalized Lorentz-Mie theory of laser beam scattering by multila
With the recursive relations of Bessel function and applying inductive approach, the consistency between the scattering ......
本文在无源各向异性铁氧体和等离子体介质的球矢量波函数基础上，利用第一、二类球Bessel满足相同的微分方程和递推关系，给出了各向异......
Analytical solutions to the electromagnetic field in a cylindrical shell excited by external axial c
The solutions to the electromagnetic field excited by a long axial current outside a conductive and magnetic cylindrical......
从黄岛码头至黄岛油库（齐润）ＤＮ８００原油管线为间断输送，设计中存在原油冷却凝固及伴热防凝的问题，本文阐述了软件的数学模型，进行了温度场的计......
利用光瞳滤波器来改变光在焦斑处的分布，是实现光学超分辨的一种有效途径。设计了一种基于贝塞尔（Bessel）函数的振幅型超分辨光瞳滤波......
由汉克尔波理论分析了贝塞尔(Bessel)光束的形成原理,很好地解释了零阶和高阶Bessel光束的自重建特性.利用衍射积分理论和柯林斯公......
给出了满足Maxwell方程的自弯曲电磁波解(部分Bessel函数),其可以通过发射调制初始相位和发射方向的一组平面波干涉合成来实现.自......
We demonstrate a low-loss terahertz waveguide based on the InAs-graphene-SiC structure. By analyzing the terahertz waveg......
首次采用单色LED绿光光源得到较理想的高阶Bessel光束,提出由交叉谱密度和多波长叠加理论计算出绿光LED发出的光经过螺旋相位板和......
Analytical formulas for carrier density and Fermi energy in semiconductors with a tight-binding band
Analytical formulas for evaluating the relation of carrier density and Fermi energy for semiconductors with a tight-bind......
A simple and repeatable method to fabricate high-aspect-ratio(HAR) and high-quality microgrooves in silica is reported. ......
AN ANALYTICAL SOLUTION FOR THREE-DIMENSIONAL DIFFRACTION OF PLANE P-WAVES BY A HEMISPHERICAL ALLUVIA
An analytical solution for the three-dimensional scattering and diffraction of plane P-waves by a hemispherical alluvial......
超声成像在医学领域中有广泛的应用,波束形成是超声成像系统的核心技术,决定了超声成像设备的图像质量。为了提高超声成像质量,人......
根据摄象管电子枪轴对称的特点,对从限制孔径出发的扫描电子束,在靶上几种可能的象电流密度分布进行了分析,并根据圆对称点扩展函......
用全息时间平均法研究微振动,早在60年代就由Powel 1与StetSon等人所提出,并得到了广泛应用。但是由于计算较复杂,限制了应用范围,......
由旋转棱镜（ａｘｉｃｏｎ）器件生成的无衍射光束（ｄｉｆｆｒａｃｔｏｎ－ｆｒｅｅｂｅａｍｓ）横截面上的光强分布具有传播不变性，因而具有相当广泛的应用前景。介绍了无衍射光束及其特性，提出二......
从简化均匀圆管脉动流动的Navier—stokes运动方程出发,避开了Bessel函数的复杂推导和繁琐的函数表格,得到比Womersley脉动流方程......
Vertical loads such as gravity may have an important influence on the seismic response of buildings. In this paper, the ......
A new controllable laser beam shaping technique is demonstrated, where a magnetic fluid-based liquid deformable mirror i......
An analytical solution is presented for the electromagnetic scattering from an infinite-length metallic carbon nanotube ......
Based on the Pennes’ bioheat transfer equation, a simplified one-dimensional bioheat transfer model of the cylindrical ......
本文论述一种有效的计算方法,以确定由角锥喇叭照射反射器天线的远场方向图。均匀几何绕射理论(GTD)公式用于确定喇叭的近场和远场......
Three displacement functions are introduced to represent each mechanical displacementaccording to the 3-D theory in thi......
By expressing the wave functions in the form of Fourier-Bessel series,the analytical solution for the two-dimension scat......
Through the Fourier-Bessel series expansion of wave functions,the analytical solution to the two-dimensional scattering ......
Quantum-electrodynamic modification of atomic dipole matrix element in a strong converging laser fie
In this paper we report at the first time a quantum-electrodynamic modificationresult to the dipole transition matrix e......
In this paper we proposes a new concept of annular-focus zone lens and its design procedure based on binary optics. An ......
Based on Fourier-Bessel series expansion of wave functions,an analytical solution to 2-D scattering ofincident plane SV ......
