【摘 要】
:
To design and calculate the zero-dispersion wavelength is one of the important aspects for highly nonlinear photonic crystal fibres.By using the air filling fra
【机 构】
:
Institute of Physics Science,Nankai University,Tianjin 300071
论文部分内容阅读
To design and calculate the zero-dispersion wavelength is one of the important aspects for highly nonlinear photonic crystal fibres.By using the air filling fraction f defined as f=(6d)/(2πA)here for the cladding effective index,and the step effective index model,the relationship between the properties of chromatic dispersion and the two different structures has been analysed.It is pointed that the variation of the zero dispersion wavelength is insensitive to the core diameter change in one range of core diameter D,while keeping the air filling fraction f constant.
其他文献
We investigate the electromagnetic perturbation around a stringy black hole. A second-order differential equation is obtained for the perturbation. The variatio
档案鉴定工作,实为档案价值鉴定工作,是档案管理部门按照一定的原则、标准、方法,判定档案的价值,确定档案的保管期限的一项工作.简言之,档案鉴定工作就是通过判定决定档案价
The translocation of polymer chain through a small pore from a high concentration side (cis side) to a low concentration side (trans side) is simulated by using
The electron temperature gradient mode is investigated in elongated toroidal plasmas with a gyrokinetic integral eigenmode equation code. Dependence of the crit
第七届北美西洋参会议于1986年6月13日至15日在美国纽约州的德尔荷召开。我应邀参加了会议。现将有关内容简介如下:北美西洋参会议始于1979年,以后每年举行一次。与会者分别
In near-field optics and optical tunnelling theory, photon wave mechanics, I.e. The first-quantized theory of photons, allows us to address the spatial field lo
By a transformation between a Painlevé integrable variable coefficient KdV equation and the standard KdV equation, we derive the Lax pair and infinitely many c
近年来,随着国有企业深化内部改革不断深入,企业的组织架构、利益分配出现了深层次调整与变化.本文针对国有企业思想政治工作在新时期出现的新问题,提出了做好国有企业思想政
随着金融体制改革的深入和入世步伐的加快,金融业竞争将愈演愈烈,我国商业银行也将面临着前所未有的挑战,对自身暴露出的问题,急需认清和解决.
在当前新媒体环境下,新闻宣传工作发挥着重要的作用.因此辅导模式 借助于新媒体的优势,进一步强化宣传手段,营造良好的新闻舆论传播氛围,掌握新媒体新闻宣传工作的方向,从而