aqora

Generation of a hollow laser beam for atom trapping using an axicon

Inka B. Manek-Hönninger, Yu. B. Ovchinnikov, Rudolf Grimm

Optics CommunicationsFeb 1, 1998160 citations

Cold atomic beam from an axicon-mirror trap

김기환

Jan 1, 19980 citations

Pulsed cold atomic beam from an axicon trap

K. I. Lee, Kihwan Kim, J. A. Kim +3 more

Journal of the Korean Physical SocietyJan 1, 19982 citations

Cold atomic beam from an axicon trap

Kihwan Kim, Kwan-II Lee, Heung‐Ryoul Noh +3 more

Summary form only given. There are two methods to produce a cold atomic beam. One is to use effusive thermal atomic beam, which is decelerated by the force of a counterpropagating laser. The other is to use trapped atoms, which are ejected from magneto-optical trap. Recently, it is reported that an atomic beam has been produced using the second method. We also have produced pulsed cold atomic beam from an axicon trap. It is the simplest setup that employs only a single laser beam to trap the atoms in axicon. The experimental setup was performed with 85 rubidium atoms. To trap atoms, the counterpropagating laser through the hole at an apex is required. When blocking the counterpropagating laser, the trapped atoms are pushed to the hole. So, we could get a pulsed atomic beam. The accelerated atoms are collimated by transverse force from axial symmetric laser inside an axicon.Summary form only given. There are two methods to produce a cold atomic beam. One is to use effusive thermal atomic beam, which is decelerated by the force of a counterpropagating laser. The other is to use trapped atoms, which are ejected from magneto-optical trap. Recently, it is reported that an atomic beam has been produced using the second method. We also have produced pulsed cold atomic beam from an axicon trap. It is the simplest setup that employs only a single laser beam to trap the atoms in axicon. The experimental setup was performed with 85 rubidium atoms. To trap atoms, the counterpropagating laser through the hole at an apex is required. When blocking the counterpropagating laser, the trapped atoms are pushed to the hole. So, we could get a pulsed atomic beam. The accelerated atoms are collimated by transverse force from axial symmetric laser inside an axicon.

Conference on Lasers and Electro-OpticsNov 27, 20020 citations

Hollow-beam atom tunnel

Yonho Song

One of the more promising proposals for guiding and focusing neutral atoms involves dark hollow laser beams. When the frequency of the laser is detuned to the blue of resonance, the dipole force the atoms feel in the light confines them to the dark core where the atoms can be transported with minimal interaction with the light. The ability of the all-light atom guides to transport large number of ultracold atoms for long distances without physical walls leads to the possibility of a versatile tool for atom lithography, atom interferometry, atomic spectroscopy as well as for transporting and manipulating Bose-Einstein condensates. Furthermore since the atoms transported in all-light atom guides do not come into contact with matter, they can in principle be used to transport antimatter as well. In this work a hollow beam atom tunnel is demonstrated by guiding magneto-optically trapped ultracold cesium atoms with a hollow core laser beam. The 1mm diameter diffractionless hollow beam used to construct the atom tunnel was generated from a TEM00 mode diode laser at 852 nm using a series of axicons and simple lenses. The axicon generated hollow beam has a dark core extended for most of its diameter andOne of the more promising proposals for guiding and focusing neutral atoms involves dark hollow laser beams. When the frequency of the laser is detuned to the blue of resonance, the dipole force the atoms feel in the light confines them to the dark core where the atoms can be transported with minimal interaction with the light. The ability of the all-light atom guides to transport large number of ultracold atoms for long distances without physical walls leads to the possibility of a versatile tool for atom lithography, atom interferometry, atomic spectroscopy as well as for transporting and manipulating Bose-Einstein condensates. Furthermore since the atoms transported in all-light atom guides do not come into contact with matter, they can in principle be used to transport antimatter as well. In this work a hollow beam atom tunnel is demonstrated by guiding magneto-optically trapped ultracold cesium atoms with a hollow core laser beam. The 1mm diameter diffractionless hollow beam used to construct the atom tunnel was generated from a TEM00 mode diode laser at 852 nm using a series of axicons and simple lenses. The axicon generated hollow beam has a dark core extended for most of its diameter and

Jan 1, 19991 citation

Laser Guiding Of Atoms In A Dark Hollow Beam

Jia-Jing Yin, Harada Nob., K.I. Lee +3 more

Quantum Electronics and Laser Science ConferenceMay 18, 19970 citations

Guiding of atoms in a travelling-wave laser trap formed by the axicon

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