Effect of Laser Power on One-Dimensional Deposition of Chromium Atomic Beam

Baowu, 张宝武 Zhang; Yan, 马艳 Ma; Tongbao, 李同保 Li; Wentao, 张文涛 Zhang

doi:10.3788/aos20092902.0421

Cited by 2 publications

(1 citation statement)

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“…In atom lithography, a light mask quasi-resonant with an atomic transition can affect the transverse dynamics of the atoms and lead to a space segregation of the atoms. The so-segregated atoms can then be either directly deposited onto a substrate [5,6] or used to impress particle-sensitive resists [7] . In this experiment, a well collimated atomic beam is important because its divergence will limit the minimum of the structures [8,9] .…”

Section: Introductionmentioning

confidence: 99%

Simulation of Two-Dimensional Transverse Laser Cooling of Cesium Beam from Pyramidal Magneto-Optical Trap Atom Funnel

Zhang

Porfido

Tantussi

et al. 2011

AMR

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Simulation of two-dimensional (2D) transverse laser cooling of Cs atomic beam from pyramidal magneto-optical trap atom funnel (PMOTAF) conceived for atom lithography is presented. The results show that both the minimum full width at half maximum (FWHM) and the maximum peak value of the spatial profile of the atomic beam occur at the frequency detuning of optical molasses equals to -0.5 Г. Moreover, for each frequency detuning, an increase in the intensity of the optical molasses leads to smaller FWHM and higher peak value. The not negligible role of gravity on the atomic beam of sub-thermal longitudinal velocity along the horizontal direction is that every atomic trajectory possesses a parabolic motion either before or after laser cooling which leads to a noticeable displacement of the peak value at the observation plane with respect to the starting point.

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