Implementation of a stable, high-power optical lattice for quantum gas microscopy

Abstract

We describe the design and implementation of a stable high-power 1064 nm laser system to generate optical lattices for experiments with ultracold quantum gases. The system is based on a low-noise laser amplified by an array of four heavily modified, high-power fiber amplifiers. The beam intensity is stabilized and controlled with a nonlinear feedback loop. Using real-time monitoring of the resulting optical lattice, we find the stability of the lattice site positions to be well below the lattice spacing over the course of hours. The position of the harmonic trap produced by the Gaussian envelope of the lattice beams is stable to about one lattice spacing and the long-term (six-month) relative RMS stability of the lattice spacing itself is 0.5%.

arXiv comment13 pages, 13 figures

References in corpus (24)

• A quantum gas microscope - detecting single atoms in a Hubbard regime optical lattice
• Single-Atom Resolved Fluorescence Imaging of an Atomic Mott Insulator
• Exploring the many-body localization transition in two dimensions
• Quantum Simulation of Antiferromagnetic Spin Chains in an Optical Lattice
• Realizing a lattice spin model with polar molecules
• Experimental realization of a long-range antiferromagnet in the Hubbard model with ultracold atoms
• Quantum simulation of frustrated magnetism in triangular optical lattices
• Strongly Correlated Quantum Walks in Optical Lattices
• Single-atom imaging of fermions in a quantum-gas microscope
• Spin and Charge Resolved Quantum Gas Microscopy of Antiferromagnetic Order in Hubbard Chains
• A Quantum Gas Microscope for Fermionic Atoms
• Short-range quantum magnetism of ultracold fermions in an optical lattice
• Observation of Spatial Charge and Spin Correlations in the 2D Fermi-Hubbard Model
• Site-resolved Imaging of Fermionic Lithium-6 in an Optical Lattice
• Site-resolved measurement of the spin-correlation function in the Hubbard model
• Microscopic Observation of Pauli Blocking in Degenerate Fermionic Lattice Gases
• Site-resolved imaging of a fermionic Mott insulator
• Antiferromagnetic Heisenberg Spin Chain of a Few Cold Atoms in a One-Dimensional Trap
• Imaging and addressing of individual fermionic atoms in an optical lattice
• Observation of canted antiferromagnetism with ultracold fermions in an optical lattice
• Quantum state engineering of a Hubbard system with ultracold fermions
• Observation of 2D fermionic Mott insulators of ${}^{40}$K with single-site resolution
• Antiferromagnetic correlations in two-dimensional fermionic Mott-insulating and metallic phases
• Low-noise optical lattices for ultracold ${}^6$Li

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