Optical Phase Aberration Correction with an Ultracold Quantum Gas

Paul Hill; Philipp Lunt; Johannes Reiter; Maciej Galka; Philipp Preiss; Selim Jochim

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arXiv · 2404.16827

Optical Phase Aberration Correction with an Ultracold Quantum Gas

Paul Hill·Philipp Lunt·Johannes Reiter·Maciej Galka·Philipp Preiss·Selim Jochim

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Abstract

We present an optical aberration correction technique for ultracold quantum gas experiments which directly utilizes the quantum gas as a wavefront sensor. The direct use of the quantum gas enables correcting aberrations that are otherwise impractical to measure, e.g. introduced by vacuum windows. We report a root-mean-square precision and accuracy of 0.01{\lambda} and 0.03{\lambda}, respectively, and also show independently the reduction of aberrations through measurement of the trap frequency of our optical tweezer. These improvements were achieved for a tweezer size that is well below our imaging resolution. The present work is in particular intended to serve as a tutorial for experimentalists interested in implementing similar methods in their experiment.

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Paul Hill, Philipp Lunt, Johannes Reiter, Maciej Galka, Philipp Preiss, Selim Jochim. 2024-04-25. Optical Phase Aberration Correction with an Ultracold Quantum Gas. https://arxiv.org/abs/2404.16827

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