超精细结构

Molecular iodine has rich strong absorption lines near 532 nm that can provide the absolute references for frequency stabilization. A monolith solid laser was tuned at the spectrum of transition R (56) 32-0 of iodine molecule with new modulation frequency 375 kHz.

使用532 nm单块固体激光器，在375 kHz新的调制频率下，利用调制转移技术，将激光频率调谐到127I2的R(56)32-0跃迁的吸收谱线，并观察到该吸收谱线相应的15条超精细结构分量。

The electromagnetically induced left-handedness in a four-level atomic system associated with a pair of upper excited hyperfine levels has been investigated.

研究了具有超精细结构的四能级原子系统在电磁感应下的左手效应。

In general, the hyperfine splitting is measured by heterodyne technique.

一般而言，超精细结构的间距是以拍频的方法量得。

In most previous works, only hyperfine structure terms in the potential are taken into account.

以往的势模型只考虑了超精细结构项。

It is obvious that, the polarization effect of 〓-coreplays a important role in the calculations fir the hyperfine structure parameters.

原子实的极化效应对超精细结构参数的理论计算起着决定性的作用。

The main works included atomic structures and properties of the superheavy element Hs(Z=108)and Uub(Z=112)as well as hyperfine structures of Be-like ions.

主要工作分为两部分，1研究了Hs(Z=108)和Uub(Z=112)原子的能级结构及激发态、离子态性质，2研究了高离化态类铍离子的超精细结构。

In this thesis,we first introduced the multi-configuration Hartree-Fock theory. On the basis of this method,we investigate energy-level structures,transition probability and hyperfine structure for complex atoms.Furthermore,we analysed the strong electron correlation effects in atomand strong relativistic effects in heavy element.

本论文介绍了多组态Hartree-Fock理论方法，并利用此方法研究了一些原子体系的能级结构、跃迁几率和超精细结构，分析了这些原子体系中比较强的电子关联效应和重元素中强的相对论效应。

We have obtained the hyperfine structure components of P(84) 5-5 transition with a SNR of 1000 at 1 s time constant. The diode laser is frequency stabilized to the hyperfine component o of the saturated absorption signal.

我们得到了此跃迁超精细结构成分的讯噪比是1000(在1秒的时间常数)；此二极体雷射稳频在o超精细结构成分上，所得到的频率稳定性优於10 kHz。

In the study on hyperfine structure,we computed the hyperfine interaction diagonal and off-diagonal constants of the 1s~22s2p~3P_(0.1)levels,and the effects of electron correlation and Breit interaction on these have been analysed.

在超精细结构的研究中，我们系统地计算了Z=20-83范围内24个类铍离子的ls~22s2p~3P_(0.1)态的超精细结构，得到了与其它理论和实验符合很好的结果，并分析了不同电子关联模型和Breit相互作用对超精细结构的影响。

To obtain the hyperfine structure and A-doubling parameters from the high-resolution spectra of novel free radicals directly, a set of algebraic formulae were developed to analyze the spectra with hyperfine structure and A-doubling resolution, some related important constants of NO have been obtained by analyzing its LMR spectra.

为了对新自由基分子激光磁共振光谱的早期标识提供一些必要的分子参数，我们发展了一组用于分析自由基分子高分辨光谱中的超精细和Λ-双分裂结构的代数方程，通过对NO超高分辨激光磁共振光谱中的超精细和Λ-双分裂结构的分析，获得了该分子的部分超精细结构参数，由此验证了该方法的可靠性，为新自由基分子的光谱标识提供了必要的参数和先导方法。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。