Eliminating Thermal IR Background Noise by Imaging with Undetected Photons

Yue Ma, Nathan Gemmell, Emma Pearce +2

Spectroscopy and imaging in the mid-infrared (2.5 $\mu$m $\sim$ $\lambda$ $\sim$ 25 $\mu$m) is bedevilled by the presence of a strong 300 K thermal background at room temperature that makes…