内容：

We demonstrate site-resolved imaging of individual fermionic 6Li atoms in a single layer of a 3D optical

lattice. To preserve the density distribution during fluorescence imaging, we simultaneously cool the atoms

with 3D Raman sideband cooling. This laser cooling technique, demonstrated here for the first time for

6Li atoms, also provides a pathway to rapid low-entropy filling of an optical lattice. We are able to

determine the occupation of individual lattice sites with a fidelity > 95%, enabling direct, local

measurement of particle correlations in Fermi lattice systems. This ability will be instrumental for

creating and investigating low-temperature