Abstract
We report on a simple method to reconstruct the band structure of a one-dimensional optical lattice using a thermal cloud with a momentum spread of about two photon recoils. We image the momentum distribution of a thermal cloud exposed to a standing-wave potential using time-of-flight absorption images and observe unique features. With the support of numerical calculations, we explain their appearance and show how they can be used to reconstruct the full band structure directly. While this can serve as a precise lattice depth calibration tool, we additionally propose a method to estimate the lattice depth in a single-shot manner.
Original language | English |
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Article number | 053313 |
Number of pages | 6 |
Journal | Physical review. A |
Volume | 105 |
Issue number | 5 |
DOIs | |
State | Published - 31 May 2022 |