Near-infrared spectro-photometry, at a spectral resolution of ~100, allows
to characterize a great variety of stellar sources, from late-type giants
to emission line stars. Various components of the interstellar medium,
including circumstellar environments and Planetary Nebulae,
can also be traced.
We propose AIFU, a fiber-fed near-infrared low-resolution spectrograph.
With a 1'×1' field of view and a 2'' sampling, AIFU will be well
suited to survey spectroscopically stellar populations in large areas of
the Galaxy and of the Magellanic Clouds, as e.g. star-forming regions,
as well as to image extended sources, like circumstellar shells around
nearby evolved stars, PDRs, simultaneously in many different emission lines.