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- The results show that the threshold distance of SRRS decreases with increasing the intensity and the pulse width of the pump laser. 研究结果表明:SRRS效应的阈值距离随着泵浦光强度和脉宽的增大而变短;
- In order to achieve laser-micro-engraving, the pulse width of the laser beam should be at about several nanoseconds level and its peak power should also be at dozens of megawatt level. 要实现激光内雕,激光束必须具有数个纳秒量级窄脉宽、数十兆瓦高峰值功率,同时也要具有发散度恒定不变、大深径比的环状聚焦光束。
- Clinical analysis of Excimer Laser Photorefractive Keratectomy for myopia. 准分子激光屈光性角膜切削术治疗近视的临床分析。
- The principle and implementing of excimer laser photorefractive keratectomy[J]. 引用该论文 叶寒;廖文和;沈建新;林振能.
- It can also simulate the speed about distance changing and adjust the pulse width of echo signal. 此外,本目标回波距离处理器还可以仿真距离变化速率,调节回波脉冲的宽度。
- Under the same heating voltage and pulse width, a larger width of the microheater led to faster bubble growth. 加热条件相同的前提下,微加热元宽度越大,气泡成核所需的时间越短、微气泡生长速率越快;
- Customization of excimer laser refractive surgery is a new one based on PRK,LASIK and LASEK. 角膜的个体化切削是在PRK、LASIK、LASEK的基础上发展起来的一种新的屈光手术技术。
- This is fitted the pulse width of the injector and it's decided by the control unit. 因此,唯一能改变的量是喷油器阀能打开多久。
- Abstract: The broadening of excimer laser pulses during amplification was analysed. 摘要: 分析了准分子激光脉冲在放大过程中的展宽现象。
- Mechanism, characteristic and application of excimer laser micromachining are introduced. 摘要介绍了准分子激光微加工的机理、特点和应用。
- Once an acousto-optic modulator(AOM) was inserted into the cavity,Q-switched pulse with energy of 4.7 mJ and pulse width of 24.8 ns were achieved. 插入声光调Q晶体后获得4.;7 mJ的调Q脉冲输出;脉宽为24
- Each half of the tri-level sync pulse is defined to be 44 samples (reference clock periods) wide, for a total sync pulse width of 88 samples. 每一半三同步脉冲定义为44个采样时钟周期的宽度,所以一个完整的三电平同步信号的宽度为88个采样周期。
- TaylorHR ,Guest CS, Kelly P,et al. Comparison of excimer laser treatment of astigmatism and myopic. Arch Ophthalmol, 1993,111:1621. 王铮;陈家祺;杨斌.;准分子激光角膜切削术治疗近视散光的临床分析
- In this paper,the mechanism of action of excimer laser(AeF:193nm.8ns)and the photoablation model on cornea are analysed. 本文分析了 193nm准分子激光对角膜的蚀除机理及其对角膜的蚀除模型。
- The end and side composite pumping is an effective way to raise the Q-switching peak power and to compress the pulse width of the Q-switched pulse in a DPL. 端-侧面组合抽运方案是提高DPL调Q脉冲峰值功率和压缩脉冲宽度的有效技术途径。
- This article will review the origination and evolution of NPGS, the operation methods of excimer laser in NPGS, results and advantages. 本文就非穿透性青光眼手术的由来及演变、准分子激光非穿透性青光眼手术的操作方法、结果、优点进行综述。
- The pulse width of the backward scattered radiation decreases with the increase of the electron’s initial energy, and the collimation of the scattered radiation becomes better. 短脉冲激光条件下得到的后向散射光的频率上移与长脉冲激光条件下得到的后向散射光的频率上移是完全一致的,同时发现随着入射电子初始能量的增加,散射光的准直性越来越好,后向散射光脉冲的脉宽越来越短。
- Objective: To study the characteristics and curative effect of excimer laser in situ keratomileusis (LASIK) for myopia in aged patients. 摘要目的:探讨对大龄近视患者施行准分子激光原位角膜磨镶术(LASIK)的手术设计特点及疗效。
- Objective We compared the efficacy of excimer laser flying spots mode and broad beam made for treatment of myopia with astigmatism. 目的比较准分子激光的宽光束和小光斑飞点扫描切削模式对复性近视散光矫正效果的影响。
- The width of the room is 20 feet. 这房间宽二十英尺。