  We present numerical results of supercontinuum (SC) generation in the mid-IR
spectral region, specifically addressing the molecular fingerprint window
ranging from 2.5 to 25 um. By solving the Generalized Nonlinear Schr\"odinger
Equation (GNLSE) in a chalcogenide waveguide, we demonstrate low-power SC
generation beyond 10 um from a pump at 5 um. Further, we investigate the
short-pulse and CW regimes, and show that a simple linear dispersion profile,
applicable to a broad range of chalcogenide media, is sufficient to account for
the broad SC generation, and yield rich pulse dynamics leading to the frequent
occurrence of rogue wave events. Results are encouraging as they point to the
feasibility of producing bright and coherent light, by means of single
low-power tabletop laser pumping schemes, in a spectral region that finds
applications in such diverse areas as molecular spectroscopy, metrology and
tomography, among others, and that is not easily addressable with other light
sources
