Optimal geometry for efficient loading of an optical dipole trap
Andrzej Szczepkowicz, Leszek Krzemien, Adam Wojciechowski, Krzysztof, Brzozowski, Michael Kruger, Michal Zawada, Marcin Witkowski, Jerzy, Zachorowski, Wojciech Gawlik
TL;DR
This paper investigates how the distance between trap centers affects the efficiency of loading cold atoms into an optical dipole trap, providing an optimal displacement guideline based on trap depth.
Contribution
It introduces a simple analytical formula for the optimal distance between trap centers to maximize loading efficiency.
Findings
Optimal displacement up to 15 mm for various trap depths
Derived analytical formula for trap center separation
Enhanced understanding of loading efficiency dependence
Abstract
One important factor which determines efficiency of loading cold atoms into an optical dipole trap from a magneto-optical trap is the distance between the trap centers. By studying this efficiency for various optical trap depths (2--110 mK) we find that for optimum dipole trap loading, longitudinal displacements up to 15 mm are necessary. An explanation for this observation is presented and compared with other work and a simple analytical formula is derived for the optimum distance between the trap centers.
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