We demonstrate a simple method to increase the optical density (OD) of cold atom clouds
produced by a magneto-optical trap (MOT). A pair of rectangular anti-Helmholtz coils is used …

We study the two-color nonreciprocal effects of transmission and reflection in cold atoms
driven into the tripod configuration and confined in a moving optical lattice. Our numerical …

We build up a novel setup of a two-dimensional (2D) 85 Rb magneto-optical trap (MOT) with
a high optical depth (OD) of 38. Such a MOT trap of 85 Rb has several advantages as …

The accurate determination of atom numbers is an ubiquitous problem in the field of
ultracold atoms. For modest atom numbers, absolute calibration techniques are available …

We systematically studied the storage time of Rb87 atoms in an optical dipole trap (ODT)
formed by a multimode fiber laser. Storage time is an important parameter in cold atom …

Controlling the tunneling of atoms of one species using a different atom species is a
fundamental step in the development of a new class of atom quantum devices, where …

We study both steady and dynamic optical responses of three samples with the same
amounts of cold atoms but very different density functions. These samples are driven into the …

Bose-Einstein condensation (BEC) in dilute gases stands as a fascinating phenomenon of
quantum mechanics. In this state, hundreds of thousands of atoms occupy the lowest energy …

Over the past half century, atomic ensembles have been used to create sensors, clocks, and
quantum information systems. As these devices become more compact, and as the number …

We report the radiation trapping effect inside a hollow-core photonic crystal fiber (PCF). An
optical dipole trap was used to load and confine the atoms in the PCF without contacting the …