电光学

Based on the structure of a non-tracking internal-concentrator solar PV-thermal tube collector and the absorber design requirements, the optical design for the compound parabolic concentrator with half cylinder absorber is proposed to improve the solar energy efficiency. Matlab software was used for the optimization and simulation of the concentrator curve and shape. The curve equation of concentrator for maximum incidence of light of the collector was obtained; and the installation locations for CPC/half cylinder absorber and the necessary CNC processing parameters were optimized.

针对非跟踪内聚光光电－光热复合管的结构及接收器的设计需求，对管内具有特殊形状的半圆柱接收器的复合抛物面聚光器进行了光学设计，并利用Matlab软件对聚光器曲线和形状进行了优化与数据仿真，得到了光热复合管能够得到最大入射光的聚光器的曲线方程、安装位置以及供数控机床加工所需的参数，给出了不同入射角的光线和光强分布图，提高了太阳能的利用率。

Photonic crystals are optical micro-structural materials artificially made with theirdielectric functions of a spatial periodic distribution.

光子晶体是由介电函数的空间周期性分布所形成的人工光学微结构材料。

It was composed by permittivity with periodic structure in one、two or three dimension.

光子晶体是一种新型的光学材料，它是将不同介电常数的介质材料在一维、二维或三维空间内组成具有光波长量级的周期性结构。

It may be caused by the fact that the researches were mainly focused on the compositions in the rhombohedral and morphotropic phase boundary.

在此组分范围内，由于铁电微畴的影响，很难得到光学级的PMN-PT单晶。

The mechanism of photosensitivity and phototaxis was studied with optical andelectrophysiological method. The results are as follows:1 among three kinds of Chysopa peral. of the compound eyes show little daily change in Chrysopa sinica Tjedar .The model and color of psesudpopupil show significant daily change in Chrysopa septempzhbybimctata Wesmacl and Chrysopa formosa Brauer, color and diameter of the psesudpopupil of the compound eyes in Chrysopa septempunctata Wesmacl make rapid change at noon, afternoon ,night are similar ,but make little change in the morning and the next morning. Diameter of psesudpopupil of compound eyes is the biggest in the afternoon, which of Chrysopa formosa Brauer, is the biggest at noon.

本文应用光学及电生理学方法对棉铃虫优势种天敌—中华草蛉、大草蛉和丽草蛉3种草蛉的感光和趋光机制进行了研究，主要研究结果如下： 1、中华草蛉、大草蛉、丽草蛉复眼伪瞳孔大小、颜色昼夜间有节律性变化，且种间具有不同的变化模式。3种草蛉中，中华草蛉复伪瞳孔大小昼夜节律变化不明显，其模式和颜色上亦基本无变化，中间为一小黑点，其外围是绿色，最外层为红色，形状为正六边形：大草蛉、丽草蛉的复眼伪瞳孔大小昼夜间不同，大草蛉的复眼伪瞳孔在中午、下午、晚上变大，早晨和次日早晨基本一致，但次日早晨稍小些。

In addition, we use plane wave method to describe the reciprocal symmetry in both optics and quantum mechanics.

最后我们进一步应用格林函数方法去处理在近场光学里的问题，并考虑源为电双极的型式，且讨论两种不同的系统。

Various PLI nanocomposites can be prepared using intercalation compounding; PLI composites have unique structure as well as mechanical, thermal, electrical, magnetic and gas/liquid barrier properties.

利用插层复合原理制备各种聚合物/层状无机物纳米复合材料，赋予材料独特的结构，更优异的力学，热学，电、磁和光学及其气体阻隔性能，具有重要的科学意义和应用前景

It can be used to demonstrate such as optical axis of the uniaxial crystal,principal plane,the ordinary wave front and the extraordinary wave front ,etc.

该仪器用于普通物理光学教学，能形象生动地演示单轴晶体中的光轴、主平面、o光和e光的波面、o光和e光各自的电矢量的振动方向、速率大小关系，并能灵活地结合课堂教学各种实例，说明在不同条件下，双折射的产生及其原因

〓 thin film is a kind of ferroelectric materials which can be applied widely in the future. It has many good properties, such as photoelectricity, pyroelectricity, nonlinear optical and dielectric characteristics.

KTN薄膜材料是一种非常有应用前景的铁电材料，它具有良好的电光性能、非线性光学性能和热释电性能。

KTP crystal has a lots of outstanding properties of electro-optics, piezoelectricity, pyroelectricity and optical nonlinearity, especially it's coercive field is only a tenth of LiNbO3, so it has been used widely in the region of Quasi-Phase-Matched technology.

KTP晶体具有良好的电光、压电、热电和非线性光学特性，尤其它的矫顽场电压是铌酸锂晶体的十分之一，因此在准相位匹配技术领域得到广泛的应用。

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。