Furthermore, the energy levels of rare earth ions in fluoride glasses have long lifetimes, and much more substable levels can be formed, thus upconversion laser transition is abundant.
利用稀土离子在氟化物光纤中的上转换特性，可以获得性能优良的光纤激光器。
By counting the number of such X-rays while scanning the frequency of the laser pulse, the team could make a very precise measurement of the photon energy required to drive the 2s-2p transition.
通过统计所发出X光的数量，然后对照激光脉冲的频率，测量小组能得出一个非常精确的测量值，从2s能级到2p能级跃迁所需的量子能量。
This article discusses the femto-chemistry, because it involves femtosecond laser pulses, and its research or monitor into chemical processes of transition state and intermediate.
讨论由飞秒激光脉冲所构成的飞秒化学，及其对化学反应过渡状态或中间体的研究和检测。
Reactions of transition metals with acetonitrile clusters in the gas phase are studied using laser ablation-molecule beam technique.
用激光溅射-分子束技术，研究了几种过渡金属离子与乙腈团簇分子的气相化学反应。
According to laser working process, stabilization frequency includes mode hopping, transition stage and stabilized mode.
按照激光器的工作过程，稳频分为三个阶段：跳模、过渡阶段，模式稳定。
This paper deals with the technique of laser cladding on contact surface of gears, micro hardness distribution, microstructure and properties of cladding and transition layer.
研究齿轮齿面激光熔覆粉末合金的工艺、显微硬度分布、熔覆层及过渡层等的金相组织及性能。
Cut into the basic shape, with laser cutting, has the following advantages: the shape precision, not out of shape, cutting lines more smooth, more beautiful, more natural transition.
切割成基本字形，采用激光切割割，具有以下诸多优点：字形精准、不走形，切割线条更圆滑、更美观、过渡更自然。
The coupling metal packaging piece is of an integral tube structure, or formed by a laser fixing tube body, a coupling transition tube and an outer packaging tube.
耦合金属封装件是一整体管结构，或由激光器固定管体、耦合过渡管、以及外封管组成。
The standing wave laser field is applied to the upper transition with the Rabi frequency dependent on the position through which the atom passes.
驻波激光场与级联原子的上跃迁耦合，其拉比频率依赖于原子通过驻波场的位置。
In the scheme the ion is excited by two laser fields tuned to the first lower and higher vibrational sidebands, and then by one laser tuned to the ion transition in an alternative way.
在本方案中，这个离子受到两个分别调到第一高、低振动边带的激光场和一个与离子共振的激光场的轮流激发。
The turbulence intermitency in pipe transition flow is investigated experimentally by using laser Doppler velocimetry.
用激光测速方法研究圆管流动的湍流间歇现象。
The influence of transition metal ions on the cloud point temperature of aqueous PEGwas investigated by using laser method.
介绍了不同类型的过渡金属离子的大二环笼状配合物合成方法的研究进展 。
The threshold condition of CA transition low gain, broadband-pulsed excimer laser is closely relative to the pump pulse.
跃迁的低增益、宽带脉冲准分子激光的阈值条件和其激光抽运脉冲有密切关系。
For the two-mode laser case the influence of the mode coupling to the first-order-like transition can not been neglected.
在双模光场情形，模间耦合对产生一阶类相变的影响不可忽略。
The results show that the laser process in different conditions possesses the characteristics of the first order or the second order phase transition. Laser is a typical non-equilibrium phenomenon.
结果表明，在不同条件下的激光形成过程与平衡相变中一级相变或二级相变的特性相对应，激光是非平衡态有序结构形成的典型现象，并且还展示出非平衡相变的新的特点和规律。
The advantage and disadvantage of three laser protection materials are briefly compared, which are based on linear, nonlinear, and phase transition principles.
简要比较了基于线性、非线性、相变原理的三类激光防护材料的优缺点。
The advantage and disadvantage of three laser protection materials are briefly compared, which are based on linear, nonlinear, and phase transition principles.
简要比较了基于线性、非线性、相变原理的三类激光防护材料的优缺点。
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