论文部分内容阅读
我国激光文献分布规律
【机 构】
:
广西科技情报所
【出 处】
:
中国激光
【发表日期】
:
1984年11期
其他文献
We propose a computational method for generating sequential kinoforms of real-existing full-color threedimensional (3D) objects and realizing high-quality 3D imaging. The depth map and color information are obtained using non-contact full-color 3D measure
YAG-Ce, Nd, and Yb phosphors with a triple-doped system are prepared by conventional solid-state reaction method. The fluorescence emission and excitation spectra are measured and analyzed. The influences of Yb3 doping concentration on the emission of Yb
Our experimental results show that the presence of a proper amount of negative group velocity dispersion is essential to multi-pulse operation of a Kerr-lens mode-locked femtosecond laser. We demonstrate that the pulse separations and the number of pulses
为了获得利于相干合成的具有高相干性的单元光束,可利用光学锁相环(OPLL)来实现本振激光的相位锁定。推导了锁相后激光复振幅的互相关函数表达式,并以此评价锁相后光束间的相干性。具体计算了参考光线宽、时间常数和本振激光线宽差对互相关函数值的影响。定义与本振激光线宽差相关的评价参数M ,以此表征当其他参数一定时本振激光线宽差对锁相后激光相干性的影响。进一步针对本振激光线宽不一致对锁相效果的影响进行详细分析,得到相关参数合理值范围的计算公式。结果表明对于不同的本振激光线宽差范围需要
Simulation and verification of pulsed laser beam propagation underwater using Markov chains [Invited
One fast simulation method using Markov chains was introduced to simulate angular, energy, and temporal characteristics of pulsed laser beam propagation underwater. Angular dispersion of photons with a different number of collisions was calculated based o
随着LD技术的不断发展,LD抽运的全固体激光陀螺将以其高精度、低成本、小型化的特点而有望成为21世纪光学陀螺发展的主流。介绍了激光陀螺的工作原理,分析了LD抽运的全固体激光陀螺的响应特性,给出了LD抽运全固体激光陀螺的实验装置及初步的实验结果。
根据空间坐标组合变换原理,提出在三维形面相邻子区域重合区人为引入空间非共线三点以实现测量对象全形面数字化的方法,分析了测量数据的合成精度,并以光切法三维测量系统作为应用对象进行了实验研究.结果表明,利用该方法实现三维形面分区域测量及后序多片数据拼接,具有速度快、精度高、可操作性强等特点.