英语翻译1.IntroductionPhoton-based systems have a great potential because ofthe large demand for ultra-high-speed information transferand processing,and the development of photonic materialsis being driven by such a demand.For designing photonics

英语翻译1.IntroductionPhoton-based systems have a great potential because ofthe large demand for ultra-high-speed information transferand processing,and the development of photonic materialsis being driven by such a demand.For designing photonics
英语翻译
1.Introduction
Photon-based systems have a great potential because of
the large demand for ultra-high-speed information transfer
and processing,and the development of photonic materials
is being driven by such a demand.For designing photonic
systems,the application of nonlinear optical (NLO)
properties is one of the strong candidates.Glasses are
promising materials for NLO applications because of their
high transparency,ease of fabrication into fibers and
waveguides,high thermal and chemical durability,ease of
doping,flexibility of composition,and low cost of fabrication
[1].Oxide glasses are also stable hosts for obtaining
efficient luminescence in rare-earth ions [2–4].All these
applications indicate the need for a basic understanding of
the relationship between optics and electronics in glass
matrixes.
One of the most important properties of materials that is
closely related to NLO applications is the electronic
polarizability of ions.Optical nonlinearity is caused by
the electronic polarization of a material on exposure to
intense light beams.Hence the nonlinear response of the
material is governed by electronic polarizability [5].For
this purpose,materials of high optical nonlinearity have to
be found or designed on the basis of correlations of optical
nonlinearity with some other electronic properties,which
are easily understandable and accessible.
Inorganic oxide materials in the crystalline,vitreous,or
molten state have properties that can be accounted for in
terms of the electronic ‘‘state’’ of oxygen atoms.Furthermore,
the polarizability of oxide ions is closely related to
the optical basicity of oxide materials.Optical basicity,
proposed by Duffy and Ingram [6,7],is used as a
measurement of acid–base properties of oxide glasses andexpresses the basicity of a glass in terms of the electron
density carried by oxygen.Since its introduction,many
physical and chemical properties of oxidic media in
vitreous or molten state have been related to the optical
basicity [8,9].
There has been some interest [10–16] in using the
refractivity of glasses to measure their basicity or oxygen
electron donor power,based on the Lorentz–Lorenz
equation.For this method,the refractive index,density,
cation polarizability,molecular weight and molar volume
parameters are needed to calculate the electronic polarizability.

英语翻译1.IntroductionPhoton-based systems have a great potential because ofthe large demand for ultra-high-speed information transferand processing,and the development of photonic materialsis being driven by such a demand.For designing photonics
1 .导言
光子为基础的系统有很大的潜力,因为
大量的需求,超高速的信息传递
和加工,发展光子材料
正在驱使下这样的需求.设计光子
系统,应用非线性光学（非线性光学）
物业就是其中的强有力的候选人.眼镜
有前途的非线性光学材料的应用,因为它们
透明度高,便于制造成纤维和
波导,高的热和化学稳定性,易用性
掺杂,灵活的组成,及低成本的制造
[ 1 ] .氧化物玻璃也是稳定的主机获取
高效率的发光,在稀土离子的[ 2-4 ] .所有这些
应用表明,需要有一个基本的了解
之间的关系,光学和电子在玻璃
矩阵.
其中最重要的材料性能是
密切相关的非线性光学应用是电子
极化离子.非线性光学性质,是造成
电子两极化的物质就暴露
激烈的光束.因此,非线性响应的
物质是由电子极化[ 5 ] .为了
为此,材料的高非线性光学性质有
发现或设计,在此基础上的相关性光学
非线性与其他一些电子性质,
是很容易理解和便于使用.
无机氧化物材料的结晶,玻璃体,或
熔融国家属性,可以占在
条款电子''国家''的氧原子.此外,
极化氧化物离子是密切相关
光学碱度的氧化物材料.光学碱度,
所提出的达菲和Ingram [ 6,7 ] ,是用来作为
测量酸碱性质的氧化物玻璃andexpresses碱性玻璃在条款电子
密度进行了氧.自推出以来,很多
物理和化学特性的氧化媒体在
玻璃体或熔融状态已涉及到光学
碱度[ 8,9 ] .
有一些利益[ 10月16日]在使用
折射率的眼镜来衡量他们的碱度或氧气
电子捐助者的权力的基础上,洛仑兹-洛伦兹
方程.对于这种方法,折射率,密度,
阳离子极化,分子量和摩尔体积
参数是需要计算的电子极化.