Cascaded half-harmonic generation of femtosecond frequency combs in the mid-infrared Marandi, Alireza ; Ingold, Kirk A. ; Jankowski, Marc ; Byer, Robert L. Abstract Publication: Optica Pub Date: March 2016 DOI: 10.1364/OPTICA.3.000324 Bibcode: 2016Optic...3..324M