| 1. | Laser cooling ; optical molasses ; super cold atoms ; mot
激光冷却光学粘团超冷原子磁光阱 |
| 2. | " for development of methods to cool and trap atoms with laser light
发明用激光冷却和捕获原子的方法 |
| 3. | Theoretic and experimental study on large - frequency - difference side - mode injection locking of high power semiconductor lasers for laser cooling
用于激光冷却的半导体激光器大频差边模注入锁定的理论及实验研究 |
| 4. | In the experiment of laser cooling and trapping atoms or bec , a high power , narrow linewidtn and frequency - stabilized laser is required
在激光冷却与俘获原子或原子的bose - einstein - condensation实验中，要求用于冷却的激光器具有功率高、频率稳、线宽窄等特性。 |
| 5. | The effect of atomic coherence has attracted much attention in quantum optics such as lasing without inversion , the enhancement of nonlinear process , the storage of pulse and laser cooling
原子相干效应在无反转激光、非线性过程的增强、光脉冲存储以及激光冷却等量子光学的众多领域都有潜在的应用价值。 |
| 6. | In addition , the blue - detuned fhb can also be used cool and trap neutral atoms , even to study the adiabatic compression ( heating ) and expansion ( cooling ) of atoms in the fhb
此外，这一蓝失谐的聚焦中空光束还可以用于中性原子的激光冷却与囚禁，甚至用于研究冷原子在聚焦中空光束中的绝热压缩(加热)和绝热膨胀(冷却)过程。 |
| 7. | Laser cooling and trapping rely on the interaction between laser light and atom and the transfer of energy and momentum from the optical field to the atom . using laser radiation , it is possible to decrease the atomic velocity , cool atomic gases and trap the cooled atoms
激光冷却与囚禁是基于原子与激光场相互作用，原子与光场之间产生了能量与动量交换，原子在辐射光压力的作用下，其运动速度被降低，从而达到冷却与囚禁原子的目的。 |
| 8. | The main works and results we have accomplished are as follows : 1 ) red - detuned locking of cooling / trapping laser to the cycling transition of cesium cooling has been accomplished by means of a double - passed acoustic - optical frequency shifting system and the technique of saturated absorption spectroscopy . the short - term residual frequency jitter is less than 350khz ; 2 ) automatic controlling system by computer programs has been established for laser cooling and trapping and cavity qed experiment . the laser and magnetic fields can be controlled by the acoustic - optical modulator and the electronic - controlled logic gate respectively
具体如下： 1 )采用了往返两次通过的声光频移系统结合饱和吸收光谱技术的实验方案，实现了冷却俘获激光频率相对于铯原子冷却循环跃迁的负失谐锁定，短期频率稳定度约在350khz以内，并可方便地调节其负失谐量而无须对后续光路再作调整； 2 )建立了一套基于计算机程序控制的、铯原子激光冷却与俘获实验所需的时序控制系统。 |
| 9. | In the first part , we describe the designing and construction of vapor cell magneto - optical trap ( vcmot ) in our lab . then , show the optical dipole trap of cesium based on the work of vcmot . in the third part , some preparation works for cavity qed research are presented
本文的工作主要包括以下三方面：第一，采用汽室磁光阱实现了铯原子的激光冷却与俘获；第二，在实现磁光阱基础上，采用红移行波偶极阱实现了铯原子的光学偶极俘获；第三，开展了一系列腔qed前期实验准备工作。 |
| 10. | Usually the magneto - optical trap is used to obtain the cold atoms from the vapor . it is reported that experiments for obtaining the ultra - cold cesium atoms by optical molasses directly from the vapor cell without mot . the lowest temperature achieved for the cesium atomic cloud was 3k . the relationship between the temperature and the detuning of cooling laser was measured
报告了采用直接从铯蒸汽气室而不用磁光阱实现了光学粘团的方法。用此办法得到了3的铯的超冷原子团。这是我国目前用激光冷却方法得到的最低温度。 |
