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Publisher's Note: Controllable electrostatic guiding for cold polar molecules on the surface of a chip [Phys. Rev. A78, 033426 (2008)]

Min Sun, Jianping Yin

Physical Review AOct 7, 20080 citations

A Stark decelerator on a chip

Samuel A. Meek, Horst Conrad, Gerard Meijer

A microstructured array of 1254 electrodes on a substrate has been configured to generate an array of local minima of electric field strength with a periodicity of 120 μm about 25 μm above the substrate. By applying sinusoidally varying potentials to the electrodes, these minima can be made to move smoothly along the array. Polar molecules in low-field seeking quantum states can be trapped in these traveling potential wells. Recently, we experimentally demonstrated this by transporting metastable CO molecules at constant velocities above the substrate (Meek et al 2008 Phys. Rev. Lett. 100 153003). Here, we outline and experimentally demonstrate how this microstructured array can be used to decelerate polar molecules directly from a molecular beam. For this, the sinusoidally varying potentials need to be switched on when the molecules arrive above the chip, their frequency needs to be chirped down in time and they need to be switched off before the molecules leave the chip again. Deceleration of metastable CO molecules from an initial velocity of 360 m s -1 to a final velocity as low as 240 m s -1 is demonstrated in the 15–35 mK deep potential wells above the 5 cm long array of electrodes. This corresponds to a deceleration of almost 10 5 g , and about 85 cm -1 of kinetic energy is removed from the metastable CO molecules in this process.A microstructured array of 1254 electrodes on a substrate has been configured to generate an array of local minima of electric field strength with a periodicity of 120 μm about 25 μm above the substrate. By applying sinusoidally varying potentials to the electrodes, these minima can be made to move smoothly along the array. Polar molecules in low-field seeking quantum states can be trapped in these traveling potential wells. Recently, we experimentally demonstrated this by transporting metastable CO molecules at constant velocities above the substrate (Meek et al 2008 Phys. Rev. Lett. 100 153003). Here, we outline and experimentally demonstrate how this microstructured array can be used to decelerate polar molecules directly from a molecular beam. For this, the sinusoidally varying potentials need to be switched on when the molecules arrive above the chip, their frequency needs to be chirped down in time and they need to be switched off before the molecules leave the chip again. Deceleration of metastable CO molecules from an initial velocity of 360 m s -1 to a final velocity as low as 240 m s -1 is demonstrated in the 15–35 mK deep potential wells above the 5 cm long array of electrodes. This corresponds to a deceleration of almost 10 5 g , and about 85 cm -1 of kinetic energy is removed from the metastable CO molecules in this process.

arXiv:0812.1487New Journal of PhysicsMay 14, 200933 citations

Electrostatic Trapping of Cold Polar Molecules on a Chip

马慧 Ma Hui, 许雪艳 Xu Xueyan, 印建平 Yin Jianping

Acta Optica SinicaJan 1, 20110 citations

Publisher’s Note: Proposed Coherent Trapping of a Population of Electrons in a C60 Molecule Induced by Laser Excitation [Phys. Rev. Lett.109, 257401 (2012)]

G. P. Zhang, Thomas F. George

Physical Review LettersJun 13, 20130 citations

Realizing a stable magnetic double-well potential on an atom chip

Jérôme Estève, Thorsten Schumm, Jean-Baptiste Trebbia +3 more

arXiv:physics/0503112The European Physical Journal DJul 25, 200529 citations

Deceleration of neutral molecules in macroscopic traveling traps

Andreas Osterwalder, Samuel A. Meek, Georg Hammer +2 more

A decelerator is presented where polar neutral molecules are guided and decelerated using the principle of traveling electric potential wells, such that molecules are confined in stable three-dimensional traps throughout. We compare this decelerator with that of Scharfenberg et al. [Phys. Rev. A 79, 023410 (2009)] and we show that the current decelerator provides a substantially larger phase-space acceptance, even at higher acceleration. The mode of operation is described and experimentally demonstrated by guiding and decelerating CO molecules.A decelerator is presented where polar neutral molecules are guided and decelerated using the principle of traveling electric potential wells, such that molecules are confined in stable three-dimensional traps throughout. We compare this decelerator with that of Scharfenberg et al. [Phys. Rev. A 79, 023410 (2009)] and we show that the current decelerator provides a substantially larger phase-space acceptance, even at higher acceleration. The mode of operation is described and experimentally demonstrated by guiding and decelerating CO molecules.

arXiv:0911.3324Physical Review AMay 10, 2010100 citations

Publisher’s Note: Trapping Molecules on a Chip in Traveling Potential Wells [Phys. Rev. Lett.100, 153003 (2008)]

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Publisher’s Note: Trapping Molecules on a Chip in Traveling Potential Wells [Phys. Rev. Lett.100, 153003 (2008)]

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