two-level laser

The interaction of a single mode laser field with N two-level atoms is described bya Hamiltonian trilinear in the boson operators.

本文用玻色算符的三维型哈密顿量描述单模激光场与N个两能级原子的相互作用。

Two rival laser surgery systems are undergoing clinical trials in the US.

两个相互竞争的激光手术系统正在美国进行临床试验。

Third-order correlation function for the measurement of ultrashort laser pulse using a two-beam CARS or CSRS technique was proposed theoretically.

在理论上提出了利用两光束CARS/CSRS方法测量超短脉冲激光的三阶相关函数。

In chapter II, a general equation describing a two-level atomic BECs transmitting through laser beam is constructed.

在第二章建立了二能级原子玻色-爱因斯坦凝聚体穿越激光场的一般方程。

The results demonstrate that the interaction modes of two heat sources are totally different from each others for different cladding methods, i.e. pre-placed coating by thermal spraying, pre-placed coating by organic binder and powder feeding in laser-induction hybrid cladding.

研究结果表明，对于氧乙炔热喷涂层、冷预涂层和自动送粉式激光&感应复合熔覆，激光和感应两种热源的作用方式是不同的。

Based on theoretic analysis of Fourier heat transfer law and first thermodynamic law. we program the heat transfer numerical simulate programme of one dimension and of two dimensions that fit laser irradiation.

本文在用傅立叶（Fourier）热传导定律和热力学第一定律进行理论分析的基础上，独立编制了适合于激光辐照的一维和二维热传导数值模拟程序；

Compounds 2a 2f are the deep red or deep green crystals because there are two thiocarbonyl groups in the molecule, and they can be used as far infraed adsorbent dyes, laser Q switch and organic conductors.

化合物2a2f含有二个硫羰基，为深红或深绿色晶体，可用作远红外吸收染料、激光Q开关及有机导体等。