激光束聚焦

高倍显微物镜的激光束聚焦分析

Analysis on Laser Beam Focusing Through the Microscope Objective with High Magnification

采用低能的短脉冲激光束聚焦到高压阴极上触发BRV型真空火花软X线源。

The BRV-type vacuum spark soft x-ray source has been triggered by focus-ing the low energy short pulse laser beam onto the high voltage cathode .

而对于土壤样品，当激光束聚焦位置在样品表面以下0.2mm左右，等离子体辐射强度和物质烧蚀质量具有最大值。

If soil samples are used as the targets , the emission intensities of the laser plasma and the mass of ablated material have the maxima at a focus position about 0.2 mm below the sample surface .

位相调制三倍频激光束聚焦特性的衍射模型

Diffraction Model on Focusing Properties of Phase-modulated Third Harmonic Beams

一种半导体激光束聚焦和整形的光学装置

A Optical Device of Focusing and Shaping for Semiconductor Diode Laser Beam

激光束聚焦特性与切割质量关系的研究

Study On the Relation between Characteristics of Laser Focus and Cut Quality

焊点热力学模型和激光束聚焦状态对焊点热信号的影响

Thermodynamic model and effect of CO2 laser beam FOCUS-OUT on thermal signal of solder joints

用透镜将脉冲激光束聚焦在铝膜镜面上，在部分样品的激光损伤边缘区，出现波纹状损伤形貌。

Pulsed laser induced ripple damage on an aluminum film mirror has been investigated from experiments .

为实现对入射激光束聚焦特性的准确控制，设计了二次反射激光聚焦系统。

In order to control the focusing nature of incident laser beam exactly , twice reflecting laser focusing system was designed .

激光束聚焦性能研究是激光推进技术研究中的一个重要内容。

The study of the focusing characteristics of laser beam is an important content in the study of laser propulsion technology .

提出了一种能把激光束聚焦成任意长度的新型直线聚焦透镜及其可能的应用。

A new type of focusing lens which can focus a laser beam into a line of any length and its possible applications are proposed .

基于三次谐波转换过程中位相扰动的传输变换，理论上研究了非线性晶体表面周期性纹波对三倍频激光束聚焦特性的影响，建立了多级衍射模型。

Based on the transform of phase aberrations in third harmonic generation , the focusing properties of third harmonic beam with nonlinear crystals having periodic surface ripples were theoretically investigated .

在增殖性视网膜病变的治疗中，最常见的是全视网膜光凝治疗，激光束聚焦在除中心（黄斑区）所有的视网膜部分。

In the most common treatment for proliferative retinopathy , called panretinal photocoagulation , the laser beam is focused on all parts of the retina except for the center ( the macula ) .

等离子体拍波加速器中的激光束自聚焦

Self Focusing of Laser Beams in the Plasma Beat-Wave Accelerator

环形激光束自聚焦效应的补偿研究

Analyzing the Compensation of Self-focusing of Annular Laser Beams

双透镜聚焦系统对高斯激光束的聚焦

Focused of Gaussian Laser Beam with Two-lens Focusing System

高阶模激光束的聚焦

Focusing Laser Beam s with Higher-Order Mode

光镊是利用激光束高度聚焦产生的动力学效应来捕获操纵微粒的一种技术。

Optical tweezers use the forces exerted by a strongly focused beam of light to capture and manipulate micro-particles .

尤其是激光束可以聚焦到很小的尺寸，非常适合微尺度精密加工。

Especially , the laser can be focused into very small beam and is very suitable for precision micro-scale processing .

从几何光学和物理光学出发，对抛物面镜以离轴90°的方式应用于激光束的聚焦光路时，光轴的角度失准和入射光发散角对聚焦光斑造成的影响进行了分析。

Based on combining geometrical and physical optics , the effects of the angular misalignment of the optical axis and divergence angle on the focal power density are analyzed .

采用高数值孔径物镜使激光束高度聚焦，并用同一物镜收集样品的荧光，单光子计数器用于实时记录荧光信号。

The highly focused laser beam was obtained by use of the objective with high numeric aperture , and the fluctuant fluorescence signals were collected by a sensitive single photon counting module .

延迟位相在大功率CO2多模激光束传输与聚焦中的重要性

Study of Beam Propagation and Focus of a High Power CO_2 Laser with a Phase Shift Analysis

根据矩阵光学变换的ABCD定律，推导出激光束经过单聚焦镜变换后的成像公式和物像比例公式，并在此基础上讨论光束质量和聚焦系统特性对光束聚焦性能的影响。

Imaging formula and object-image scale formula of laser beam transferred by focus lens are deduced according to the ABCD law of matrix optics , and the factors that effect on beam focus properties are analyzed based on these two formulas .

采用光波的衍射积分理论，对具有波纹调制激光束的准聚焦特性进行了理论分析。

Based on the diffraction integral theory , the quasi-focused characteristics of a laser beam with waviness modulation have been studied theoretically and numerically in the paper .

数据在光盘上的排列比在软盘或硬盘上更加紧密，原因是激光束可以比磁头聚焦到更小的点上。

Data can be crammed much tighter on a CD than on a magnetic floppy or hard drive because a laser beam can be focused to a much smaller point than magnetic heads .

激光焊接是利用激光束聚焦后所获得的能量高，方向性好的光束照射在工件所需的焊接部位，使光能转化为热能，从而融化金属进行焊接的一种工艺方法。

Laser welding is one of the welding technologies , which use the focused laser beam to heat the welding position of the workpiece .

激光转镜以扫描方式将激光束聚焦扫描成线状光斑。

Laser rotating mirror scans the focused laser beam into lineation facula .

激光焊接中，激光束通过聚焦头聚焦到工件表面。

In the laser welding , laser beam was focused on surface of the workpiece through laser head .

在激光焊接中，激光束通过聚焦头聚焦到工件表面，良好的激光聚焦性能是获得高质量焊缝的关键。

In laser welding , laser beam was focused on the workpiece through laser head . Well focused laser beam was the key to get high quality welding seam .

本文研究了高斯激光束经球面端面的抛物型梯度折射率棒的聚焦特性，讨论了这种梯度折射率棒透镜用作激光束聚焦元件时的一阶设计原理。

The Gaussian beam focusing characteristics through the parabolic gradient-index rod lens with spherical end surfaces are studied and the first-order design principle of this GRIN rod lens used as laser team focusing elements is discussed .