查询词典 diffraction

The formula of numerical computing is presented with discretion for Fresnel diffraction and phase numerical reconstruction of wave front.

从光的菲涅耳衍射、波前相位重构入手，对连续信号进行了离散化处理，给出了数值计算公式。

The deep UV lithography is also studied by using corrected Fresnel diffraction model.

进行了深度紫外光刻模拟，并对模拟结果进行了实验结果验证。

In the course of encryption and decryption, the system uses fresnel diffraction which is lensless and therefore can minimize the hardware requirement.

加/解密过程采用无透镜的菲涅尔衍射，减少了对系统的硬件要求，增强了该技术的实用性。

The Fresnel diffraction of a O-π phase grating under chirped femtosecond laser pulse illumination is analyzed.

分析了一种0-π相位光栅在啁啾飞秒激光脉冲照射下的菲涅耳衍射。

According to Fresnel diffraction theory, the principles of imaging

王意 河北工程大学根据菲涅耳衍射理论，简要分析了数字全息成像与形貌测量的原理

Fresnel straight edge diffraction is simulated with MATLAB,the corresponding laws and graphical effects are also received.

用MATLAB软件仿真模拟了菲涅耳直边衍射实验，给出了相应物理规律和图形化的效果。

The blind digital watermarking algorithm based on Fresnel diffraction transform, phase encryption mask and discrete wavelet transform is proposed.

基于菲涅耳衍射变换和相位密码板，结合离散小波变换，设计了一种新的盲数字水印算法。

An equation for calculating the Fresnel diffraction field of a grating under short-pulsed light illumination is derived.

首先导出了光栅在短脉冲激光照射下的菲涅耳衍射光场的方程，利用该方程分析了一个开口比为1：4的光栅的衍射光场。

Blind digital watermarking technique based on optical fresnel diffraction.

基于光学菲涅耳衍射的"盲数字水印"技术。

The experiments of UV proximity lithography show that the corrected Fresnel diffraction model could get more accurate results than that of the Fresnel model.

同时计算机模拟和实验结果都说明尺寸越小的微结构，所能够得到的光刻深度越小，需要的曝光剂量越大；光刻所得微结构的中间会比较宽。

So it was last week in Selma , alabama.

上星期在亚拉巴马州塞尔马市发生的事件也是这样一个转折点。

The group also spearheads various social programs in China.

该组织还带头参与中国的各种社会活动。