Two-octave-wide (3-12 μm) mid-infrared frequency comb produced as an optical subharmonic in a nondispersive cavity

Q. Ru, T. Kawamori, P. G. Schunemann +3

Coherent laser beams in the 3 to 20 μm region of the spectrum are most applicable for chemical sensing by addressing the strongest vibrational absorption resonances of the media. B…