光学的

The third-order nonlinear optical organic material is the focus of the research of functional materials.

0引言具有离域π电子共轭系的有机分子有较大的非线性光学系数和超快的非线性光学响应[1，2]。

Using this method, the effect of the PM-PCF structure on the optical characteristic parameters, including modal field diameters,effective refractive index of space-filling mode, normalized frequency, mode field and single-polarization single-mode region etc., are studied systemly.

在第三章，通过全矢量有限元分析方法详细地分析了保偏光子晶体光纤结构参数对光子晶体光纤的光学特性影响，包括对单偏振单模光子晶体光纤的模场直径、基空间填充模的有效折射率、归一化频率、模场分布、单偏振单模区域等一系列光学特性参数进行了分析。

In this paper, numerical calculations of magnetically induced twist effect in planar nematic liquid crystal are presented. The transmission of polarized light passing through magnetically induced twist distribution in planar nematic liquid crystal is calculated with "4-4" matrix algorithm. On the experimental side, the optical phase retardation method is used to detect the magnetically induced twist effect in planar nematic liquid crystal 5CB(4′-n-penty1-4-cyanobiphenyl) at 27℃.

对平行排列5CB(4′-n-penty1-4-cyanobinpheny1)丝状液晶在静磁场中扭曲变形做了严格的数值解，给出了严格分布情况；利用光学&4*4&矩阵算法，计算了线偏振光在严格分布下的传输情况；在实验方面，应用光学相位延迟法对平行排列5CB丝状液晶在静磁场中(温度27℃)线偏振光的通过情况进行了测量。

The variation of reflectivity spectra for the VCSELs with the change of incident angle, optical thickness of resonance cavity and optical thickness of DBR are investigated.

研究了VCSEL的反射率谱线位置随光线入射角度、谐振腔的光学厚度以及DBR光学厚度的变化。

Shanghai SHENFEI Laser Opitcal System LTD.is a hi-tech enterprise,ehich was jointly founded by Shanghai Institute of Laser Technology,Shanghai Technology Creation LTD.Shanghai Technology Investment Co.as well as main managers.The hi-tech products manufactured by this company:The glass master substrates used for grating and reflector mirror,optical glass and tourist souvenir.

上海申菲激光光学有限公司是由上海激光技术研究所、上海科技创业有限公司、上海科技投资公司和企业主要经营者群体合股组成的高新技术企业，主要生产经营的高科技产品有：激光光盘母盘玻璃LD、 CD、 VCD 、DVD、 CD-ROM、 HD等系列基片，各类光学仪器用光栅、刻度盘、反光镜等玻璃基片，光学玻璃与金属镶嵌的旅游纪念品等。

We mainly refered to the one of those improved algorithms of Gerchberg-Saxton.With the computer simulation and drawing program, the simulated diffraction patterns were gotten in this paper, the results agreed with the anticipated diffraction patterns; in the paper we also design the computer optical elements that can shape the laser beam into a double circle shape,a lamp shape and so on.

同时，本文还用标量理论设计了把高斯光束整形为双圆斑形光束的计算机光学元件，文中主要是参考改进的GS(Gerchberg-Saxton)算法；通过计算机模拟，得到了计算机光学元件表面的相位浮雕图。

It can be surely concluded that in generalcases the matrix characterising the action of the optical system can be truncatedto finite order within any given errors….

在线性光学范围内，这个矩阵与入射和衍射光场无关。文中还给出了复合光学系统的作用矩阵与各组成系统的作用矩阵间的关系。

The principle of an optical microscope is quite simple; however, the resolving power of an optical microscope is limited by the wavelength of the light employed, being greater when the light source is shorter wavelength.

光学显微镜的工作原理其实非常简单，然而，光学显微镜的分解力受到其所使用光线波长的限制，光线波长越短，其分解力就越大。

The principle of an optical microscope is quite simple; however, the resolving power of an optical microscope is limited by the wavelength of the light employed, being greater when the light source is shorter wavelength.

光学显微镜的工作原理其实相当简单，然而，光学显微镜的分解力受到其所使用光线波长的限制，光线波长越短，其分解力越大。

The principle of an optical microscope is quite simple; however, the resolving power of an optical microscope is limited by the wavelength of the light employed, being greater when the light source is shorter wavelength.

光学显微镜的原理十分简单；然而，光学显微镜的分辨率却受到光波长的限制，即，光源短于波长时物体显得更大。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。