摘要A simplified two-dimensional (2-D) magneto-optical trap (MOT) for loading atoms into a 3-D MOT is realized. Instead of utilizing multiple wave plates and beam splitters to cover a large cooling region, we deploy cooling beams with elliptical cross-section profiles to achieve a comparable cooling volume. This simplification reduces the cost and difficulty of alignment. The 3-D MOT achieves a loading rate of 2×108 atoms per second via this simplified 2-D MOT. Correlation between the loading rate and parameters of optical system is also determined.
Abstract：A simplified two-dimensional (2-D) magneto-optical trap (MOT) for loading atoms into a 3-D MOT is realized. Instead of utilizing multiple wave plates and beam splitters to cover a large cooling region, we deploy cooling beams with elliptical cross-section profiles to achieve a comparable cooling volume. This simplification reduces the cost and difficulty of alignment. The 3-D MOT achieves a loading rate of 2×108 atoms per second via this simplified 2-D MOT. Correlation between the loading rate and parameters of optical system is also determined.
(Atomic and molecular beam sources and techniques)
引用本文:
WANG Xiao-Long;CHENG Bing;WU Bin;WANG Zhao-Ying;LIN Qiang**
. A Simplified Cold Atom Source for 3-D MOT Loading[J]. 中国物理快报, 2011, 28(5): 53701-053701.
WANG Xiao-Long, CHENG Bing, WU Bin, WANG Zhao-Ying, LIN Qiang**
. A Simplified Cold Atom Source for 3-D MOT Loading. Chin. Phys. Lett., 2011, 28(5): 53701-053701.
[1] Wynands R and Weyers S 2005 Metrologia 42 S64
[2] Vanier J 2005 Appl. Phys. B: Lasers Opt. 81 421
[3] Ovchinnikov Y B 2008 Eur. Phys. J. Special Topics 163 95
[4] Horikoshi M and Nakagawa K 2006 Appl. Phys. B: Lasers Opt. 82 363
[5] Sorrentino F et al 2010 Microgravity Sci. Technol. 22 551
[6] Joffe M A et al 1993 J. Opt. Soc. Am. B 10 2257e
[7] Bell S C et al 2010 Rev. Sci. Instrum. 81 013105
[8] Zhao P Y et al 2008 Chin. Phys. Lett. 25 3631
[9] Ovchinnikov Y B 2005 Opt. Commun. 249 473
[10] Watts R N and Wieman C E 1986 Opt. Lett. 11 291
[11] Zhou S Y, Xu Z and Wang Y Z 2007 Acta Phys. Sin. 56 165 (in Chinese)
[12] Tiecke T G, Gensemer S D, Ludewig A and Walraven J T M 2009 Phys. Rev. A 80 013409
[13] Mueller T et al 2007 Phys. Rev. A 76 063611
[14] Aghajani-Talesh A et al 2010 New J. Phys. 12 065018
[15] Zhang Z, Wang X and Lin Q 2009 Opt. Express 17 10372
[16] Steck D A 2008 Rubidium 87 D Line Data (revision 2.0.1, 2) http://steck.us/alkalidata
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