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Chinese Optics Letters

Chinese Optics Letters


  • Vol. 8, Iss. 7 — Jul. 1, 2010
  • pp: 627–629

Evaporative cooling of 87Rb atoms into Bose-Einstein condensate in an optical dipole trap

Dezhi Xiong, Pengjun Wang, Zhengkun Fu, Shijie Chai, and Jing Zhang  »View Author Affiliations

Chinese Optics Letters, Vol. 8, Issue 7, pp. 627-629 (2010)

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We create a Bose-Einstein condensate (BEC) of 87Rb atoms by runaway evaporative cooling in an optical trap. Two crossed infrared laser beams with a wavelength of 1064 nm are used to form an optical dipole trap. After precooling the atom samples in a quadrupole-Ioffe configuration (QUIC) trap under 1.5 \mu K by radio-frequency (RF) evaporative cooling, the samples are transferred into the center of the glass cell, then loaded into the optical dipole trap with 800 ms. The pure condensate with up to 1.5×10<sup>5</sup> atoms is obtained over 1.17 s by lowering the power of the trap beams.

© 2010 Chinese Optics Letters

OCIS Codes
(020.7010) Atomic and molecular physics : Laser trapping
(020.1475) Atomic and molecular physics : Bose-Einstein condensates

Dezhi Xiong, Pengjun Wang, Zhengkun Fu, Shijie Chai, and Jing Zhang, "Evaporative cooling of 87Rb atoms into Bose-Einstein condensate in an optical dipole trap," Chin. Opt. Lett. 8, 627-629 (2010)

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