We cool <sup>85</sup>Rb atoms in an integrating sphere directly from a vapor background using diffuse light generated by multiple reflections of laser beams in the inner surface of the integrating sphere. We compare and analyze the different features of cold <sup>85</sup>Rb atoms and cold <sup>87</sup>Rb atoms in diffuse light cooling, which are important in applying <sup>85</sup>Rb and <sup>87</sup>Rb isotopes in many experiments on testing fundamental physics.
© 2012 Chinese Optics Letters
Atomic and Molecular Physics
Xucheng Wang, Huadong Cheng, Ling Xiao, Benchang Zheng, Yanling Meng, Liang Liu, and Yuzhu Wang, "Laser cooling of rubidium 85 atoms in integrating sphere," Chin. Opt. Lett. 10, 080201- (2012)