| 1. | Intensity - gradient cooling of atoms in a localized - hollow beam
局域中空光束中原子的强度梯度冷却 |
| 2. | The construction and quantity control of pre - stressed hollow beam of the northern of second circle freeway
北二环高速公路预应力空心板施工及质量控制 |
| 3. | Due to the extremely - small dark spot size of the focused hollow beam in the focal plane , it can be used to form an atomic lens with a high resolution
由于这一聚焦中空光束在它的焦平面上具有很小的dss ，可以用来聚焦原子束以形成原子透镜。 |
| 4. | After the focal plane , the focused hollow beam propagated according to a constant angle of divergence , the dss become larger , and the intensity become weaker
经过焦点后，这一聚焦中空光束将以一定的角度发散，它的dss会变得越来越大，光强度变得越来越弱。 |
| 5. | The physical mechanism to generate a dark hollow beam from the output beams of a lp01 mode ( scalar model ) and a he11 mode ( vector model ) in a micro - sized hollow optical is analyzed
本文就利用中空光纤中lp _ ( 01 )模(标量模型)和he _ ( 11 )模(矢量模型)衍射输出产生中空光束的物理机制进行了详细的理论研究。 |
| 6. | Each of hollow beams has its own particular physics character , this causes widely applied in the trapping particles , four - dimension manipulating , guiding cold atomic , and atomic funnel and so on
摘要各类空心光束都有其新颖独特的物理性质，这使得其在实现微观粒子的光学囚禁与四维操控以及冷原子的激光导引、漏斗等方面有着非常广泛的应用。 |
| 7. | We also propose two models to describe the propagation charcteristic of the focused hollow beam in 3d free space : one is the modified tem _ ( 01 ) mode doughnut beam model , the other is the width and narrow gaussian beam model
同时我们还提出了两种聚焦中空光束的理论模型，一种是修改的tem _ ( 01 )模式的doughnut光束模型，另一种是宽、窄高斯光束模型。 |
| 8. | When a larger waist w of the incident gaussian beam and a shorter focal length / of the lens are chosen , we can obtain an extremely - small dark spot size of the focused hollow beam , even approach the diffraction limit
当选择较大的入射准直高斯光束的束腰w _ 0和较短的薄透镜焦距f时，可以在焦平面上产生一个很小的dss (或束半径r _ 0 ) ，甚至可以接近衍射极限。 |
| 9. | Based on huygens - fresnel diffraction integral theory , the propagation properties of bessel beam were studied in this paper . by using the analyses of geometrical optics , hollow beam are found and the formula of the starting point 、 the end point and the bottle length can be got
论文中,我们基于惠更斯-菲涅耳衍射积分理论研究了由轴棱锥产生的贝塞尔光束的传输特性,并且通过几何光学解析无衍射光束的聚焦特性。 |
| 10. | In this paper , the character , the generation and the application of some familiar hollow beams are summarized briefly , then its recent progress in side and out will be introduced , finally some brief outlook about the future study and applications of the hollow beams will be made
文章简要概述了常见的几类空心光束的性质、产生方法及其应用，介绍了近几年来国内外的一些最新研究进展情况，并就空心光束的未来研究和应用进行了展望。 |
