  Atomic-scale imaging offers a reliable tool to directly measure the movement
of microscopic particles. We present a scheme for achieving a nondestructive
and ultrasensitive imaging of Rydberg atoms within an ensemble of cold probe
atoms. This is made possible by the interaction-enhanced electromagnetically
induced transparency at off-resonance which enables an extremely narrow
absorption dip for an enhanced transmission. Through the transmission of a
probe beam, we obtain the distribution of Rydberg atoms with both high spatial
resolution and fast response, which ensures a more precise real-time imaging.
Increased resolution compared to the prior interaction-enhanced imaging
technique allows us to accurately locate the atoms by adjusting the probe
detuning only. This new type of interaction-enhanced transmission imaging can
be utilized to other impure systems containing strong many-body interactions,
and is promising to develop super-resolution microscopy of cold atoms.
