刀口技术在激光冷却中的应用

王占山; 马珊珊; 马 艳; 赵 敏; 刘恒彪

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刀口技术在激光冷却中的应用

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- 刀口技术在激光冷却中的应用
- Knife-edge technique for laser cooling
- 光学精密工程 2006年14卷第1期页码：63-69
- 作者机构：
  
  同济大学精密光学工程技术研究所物理系上海,200092
- 作者简介：
- 基金信息：
- DOI：
  中图分类号： TN249
- 收稿日期：2005-10-22，
  
  修回日期：2005-12-18，
  
  网络出版日期：2006-02-20，
  
  纸质出版日期：2006-02-20
- 稿件说明：
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王占山, 马珊珊, 马艳, 等. 刀口技术在激光冷却中的应用[J]. 光学精密工程, 2006,14(1):63-69.

WANG Zhan-shan, MA Shan-shan, MA Yan, et al. Knife-edge technique for laser cooling[J]. Optics and precision engineering, 2006, 14(1): 63-69.
王占山, 马珊珊, 马艳, 等. 刀口技术在激光冷却中的应用[J]. 光学精密工程, 2006,14(1):63-69. DOI：

WANG Zhan-shan, MA Shan-shan, MA Yan, et al. Knife-edge technique for laser cooling[J]. Optics and precision engineering, 2006, 14(1): 63-69. DOI：

摘要

研究了原子束的传输特性、激光冷却的效果及应用刀口技术实现μK量级冷却温度的测量

得出如下结论:原子从原子炉的出射口发射出以后

不论是否经过激光冷却

原子运动的距离越长

分布的均匀性越差。激光冷却可使原子炉出射原子的横向速度降低几个数量级

使原子束经传输后的横向分布均匀度大大提高。刀口技术可用来测量激光冷却后的温度

测量精度主要由测量荧光的CCD的像元尺寸决定。这些结论对深入开展激光冷却实验具有重要的意义。

Abstract

Some researches on transfer characteristics of atomic beam

laser cooling effect

and knife-edge technique's application to measuring the temperature of atoms through laser cooling were investigated. The results show as follows:after atoms emitted from atomic oven

the longer the motive distance of atoms is

the less the distribution of the atomic beam is

no matter the laser cooling is made or not. Laser cooling can make the transverse velocity of the atomic beam reduce several orders and increase the uniformity of the atomic beam also. The knife-edge technique can measure the temperature of the atomic beam through laser cooling

and measured accuracy is decided by the pixel size of CCD for fluorescent imaging of the atomic beam. The results are of great significance to laser cooling experiments in the future.

关键词

Keywords

references

. HANSCH T W, SCHAWLOW A L. Cooling of gases by laser radiation [J]. Opt Commu, 1975,13:68-59.

. MINOGIN V G. Deceleration and monochromatization of atomic beams by laser radiation pressure [J]. Opt Commu, 1980,34(2):265-268.

. PHILLIPS W, MITCALF H. Laser deceleration of an atomic beam [J]. Phys Rev Lett, 1982,48(9):596-599.

. CHU S, HOLLBERG L, BJORKHOLM J E, et al. Three-dimensional viscous confinement and cooling of atoms by resonance radiation pressure [J]. Phys Rev Lett, 1985, 55(1):48-51.

. LETT P D, WATTS R N, WESTBROOK C I, et al. Observation of atoms laser cooled below the Doppler limit [J]. Phys Rev Lett, 1988, 61(2):169-172.

. ASPECT A, ARIMONDO E, KAISER R, et al. Laser cooling below the one-photon recoil energy by velocity-selective coherent population trapping [J]. Phys Rev Lett, 1988, 61(7):826-829.

. KASEVICH M, CHU S. Laser cooling below a photon recoil with three-level atoms [J]. Phys Rev Lett, 1992, 69(12): 1741-1744.

. ANDERSON M H, ENSHER J R, MATTEWS M R, et al. Observation of Bose-Einstein condensation in a dilute atomic vapor[J]. Science, 1995, 269(5221):198-201.

. XU L F, YIN J P, WANG Y Z. A proposal for ac magnetic guide and trap of cold atoms. Opt. Commun. 2001, 188(1):93-98.

. 王义遒,李义民,甘建华,等. 激光冷却与捕陷原子的研究在北京大学的进展[J]. 量子光学学报,1996,2:165. WANG Y Q, LI Y M, GAN J H, et al. Acta Sinica Quantum Optica, 1996,2: 165.(in Chinese)

. 王育竹, 刘勋铭, 林岳明,等. 一种新型的钠原子磁光陷阱(MOT) [J]. 中国激光,1996, 23(5)∶448. WANG Y Z,LIU X M, LIN Y M, et al. Chinese Journal of Lasers,1996, 23(5): 448.(in Chinese)

. 罗有华,黄整,王育竹. 冷原子在静电势阱中的量子力学效应[J]. 物理学报,2002,51:1706-1710. LUO Y H,HUANG Z,WANG Y Z. Quantum effects of cold atoms in electrostatic trap. Acta. Phys. Sin. 2002,51:1706-1710. (in Chinese)

. YANG D H,WANG Y Q. Preliminary results of an optically pumped cesium beam frequency standard at Peking university [J]. IEEE Trans . Instrum. Meas. 1991,40(6):1000-1002.

. SCHOLTEN R E, GUPTE R, MCCLELLAND J J, et al. Laser collimation of a chromium beam [J]. Phys Rev A, 1997, 55(2):1331-8.

. MCCLELLAND J J. Atom optical properties of a standing-wave light field[J]. J Opt Soc Am B, 1995, 12(10):1761-1768.

. MCCLELLAND J J, SCHOLTEN R E, PALM R J, et al. Laser-focused atomic deposition[J].Science, 1993, 262(5135):877-880.

. DRODOFSKY U, STUHLER J, SCHULZE T H,et al. Hexagonal nanostructures generated by light masks for neutral atoms[J].Appl. Phys. 1997,B65(6):755-759.

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