High-order Laguerre-Gaussian laser modes for studies of cold atoms

被引:115
作者
Clifford, MA [1 ]
Arlt, J [1 ]
Courtial, J [1 ]
Dholakia, K [1 ]
机构
[1] Univ St Andrews, Dept Phys & Astron, JF Allen Phys Res Labs, St Andrews KY16 9SS, Fife, Scotland
基金
英国工程与自然科学研究理事会;
关键词
laser cooling; atom traps; atom guiding; angular momentum of light;
D O I
10.1016/S0030-4018(98)00464-7
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The generation of high-order Laguerre-Gaussian (LG) laser modes at 780 nm from a simple external-cavity diode laser is demonstrated. The beams are derived from computer-generated holograms and a high conversion efficiency of 40% is achieved for LG beams with mode indices from l = 1 to l = 6. The line width of the external cavity diode laser is below 1 MHz. This system is suitable for studies of trapped and cooled atoms using LG beams. (C) 1998 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:300 / 306
页数:7
相关论文
共 23 条
[11]   Atom hosepipes [J].
Dholakia, K .
CONTEMPORARY PHYSICS, 1998, 39 (05) :351-369
[12]   Optical angular-momentum transfer to trapped absorbing particles [J].
Friese, MEJ ;
Enger, J ;
RubinszteinDunlop, H ;
Heckenberg, NR .
PHYSICAL REVIEW A, 1996, 54 (02) :1593-1596
[13]   LIGHT-FIELD FLUCTUATIONS IN-SPACE AND TIME [J].
HARRIS, M .
CONTEMPORARY PHYSICS, 1995, 36 (04) :215-233
[14]   OPTICAL-PARTICLE TRAPPING WITH HIGHER-ORDER DOUGHNUT BEAMS PRODUCED USING HIGH-EFFICIENCY COMPUTER-GENERATED HOLOGRAMS [J].
HE, H ;
HECKENBERG, NR ;
RUBINSZTEINDUNLOP, H .
JOURNAL OF MODERN OPTICS, 1995, 42 (01) :217-223
[15]   DIRECT OBSERVATION OF TRANSFER OF ANGULAR-MOMENTUM TO ABSORPTIVE PARTICLES FROM A LASER-BEAM WITH A PHASE SINGULARITY [J].
HE, H ;
FRIESE, MEJ ;
HECKENBERG, NR ;
RUBINSZTEINDUNLOP, H .
PHYSICAL REVIEW LETTERS, 1995, 75 (05) :826-829
[16]  
KETTERLE W, 1993, PHYS REV LETT, V70, P2256
[17]   QUALITATIVE-ANALYSIS OF BLEACHED HOLOGRAPHIC DIFFRACTION GRATING IN SILVER-HALIDE EMULSIONS [J].
KIM, N .
OPTICS COMMUNICATIONS, 1994, 105 (1-2) :1-6
[18]   Novel optical trap of atoms with a doughnut beam [J].
Kuga, T ;
Torii, Y ;
Shiokawa, N ;
Hirano, T ;
Shimizu, Y ;
Sasada, H .
PHYSICAL REVIEW LETTERS, 1997, 78 (25) :4713-4716
[19]   Radiation forces on a two-level atom in a sigma(+)-sigma(-) configuration of Laguerre-Gaussian beams [J].
Lai, WK ;
Babiker, M ;
Allen, L .
OPTICS COMMUNICATIONS, 1997, 133 (1-6) :487-494
[20]   Mechanical equivalence of spin and orbital angular momentum of light: An optical spanner [J].
Simpson, NB ;
Dholakia, K ;
Allen, L ;
Padgett, MJ .
OPTICS LETTERS, 1997, 22 (01) :52-54