  We demonstrate a compact (0.25 L) system for laser cooling and trapping atoms
from a heated dispenser source. Our system uses a nanofabricated diffraction
grating to generate a magneto-optical trap (MOT) using a single input laser
beam. An aperture in the grating allows atoms from the dispenser to be loaded
from behind the chip, increasing the interaction distance of atoms with the
cooling light. To take full advantage of this increased distance, we extend the
magnetic field gradient of the MOT to create a Zeeman slower. The MOT traps
approximately $10^6$ $^7$Li atoms emitted from an effusive source with loading
rates in excess of $10^6$ s$^{-1}$. Our design is portable to a variety of
atomic and molecular species and could be a principal component of miniaturized
cold-atom-based technologies.
