1) crossed-beam photorefractive gratings
局域体光栅
1.
Based on the two-center nonvolatile holographic recording method and the theory model combining band transport model with the two-dimensional coupled-wave equations, the numerical simulation method is used to study the photorefractive formation and diffractive properties of the crossed-beam photorefractive gratings.
为研究局域体光栅的光折变形成机制及衍射特性,以双中心非挥发全息记录方案为基础,将带输运模型与二维耦合波理论相结合,采用数值模拟的方法,研究紫外敏化光强和记录红光总光强的变化对LiNbO_3:Fe:Mn晶体中局域体光栅的影响,并给出定影结束时平均折射率调制、衍射光波振幅及衍射效率的模拟结果。
2) local volume holographic grating
局域体全息光栅
1.
Based on the two-dimensional coupled-wave theory,the wave-front conversion by local volume holographic grating between cylindrical and plane waves in 90° recording geometry is investigated.
利用一维耦合波理论研究了入射方向相互垂直的一束平面波与一束柱面波干涉形成光折变局域体全息光栅的波前转换情况。
3) local volume photorefractive holographic gratings
局域光折变体全息光栅
1.
Both dynamic mechanisms and diffraction characteristics of the local volume photorefractive holographic gratings recorded by two finite bounded plane waves in doubly doped LiNbO_3∶Fe∶Mn crystals are investigated,by taking into account both the band transport model and two-dimensional coupled-wave theory.
数值计算结果表明,局域光折变体全息光栅的空间电荷场在空间上呈不均匀分布。
4) photon localization
光子局域
1.
The photon localization in disordered two-dimensional photonic crystal is studied by use of multiple-scattering method.
利用多重散射方法计算并研究了二维光子晶体随着无序度变化的光子局域化。
2.
A narrow filter produced by photonic band gap and photon localization of photonic crystal is introduced in this paper.
利用光子晶体的光子禁带和光子局域的特性制作的一维光子晶体窄带滤光器,能够用于蓝绿激光水下对潜通信系统的接收端,几乎能够完全抑制在海水传输中低损耗窗口外的背景光和干扰光,有利于提高系统信噪比。
5) Photonic localization
光子局域
1.
Optical properties of photonic crystals such as photonic bandgap, photonic localization is discussed.
介绍了光子晶体的概念、应用、发展,着重讨论了光子晶体的光子禁带、光子局域以及其它光学特性。
2.
In 1987 Yablonovitch and John, respectively and independently, proposed the notion of photonic crystals, which is an analogy to the conventional crystals and its principal properties are photonic band-gap and photonic localization.
1987年Yablonovitch和John各自独立提出了光子晶体的概念，它是由传统的晶体概念类比而来的，最根本的特征是具有光子带隙和光子局域。
3.
The material has many other unique properties such as periodic structure, photonic localization, polarization etc.
光子晶体是一种具有光子禁带的周期性电介质结构，其根本的物理特性是光子禁带，另外还有其它独特的物理特性如周期性结构、光子局域、偏振等。
6) light localization
光局域化
1.
The paper puts forward that there are two kinds of light localizations at same time in random laser with coherent feedback: the one is that the recurrent light scattering loop restricts photons in the loop,the another is that the scattering particles restrict photons in the entire gain medium,and on the base,it expatiates the work principle of the random laser with coherent feedback.
提出了相干反馈无序激光器中同时存在两种光局域化,第一种是循环光散射回路使光子局域于回路,第二种是无序介质中的散射粒子使光子局域于整个增益介质,并以此阐述了相干反馈无序激光器的工作原理。
补充资料：超导电性的局域和非局域理论（localizedandnon-localizedtheoriesofsuperconductivity）
超导电性的局域和非局域理论（localizedandnon-localizedtheoriesofsuperconductivity）
伦敦第二个方程（见“伦敦规范”）表明，在伦敦理论中实际上假定了js(r)是正比于同一位置r的矢势A(r)，而与其他位置的A无牵连；换言之，局域的A(r)可确定该局域的js(r)，反之亦然，即理论具有局域性，所以伦敦理论是一种超导电性的局域理论。若r周围r'位置的A(r')与j(r)有牵连而影响j(r)的改变，则A(r)就为非局域性质的。由于`\nabla\timesbb{A}=\mu_0bb{H}`，所以也可以说磁场强度H是非局域性的。为此，超导电性需由非局域性理论来描绘，称超导电性的非局域理论。皮帕德非局域理论就是典型的超导电性非局域唯象理论。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条