TY - JOUR AU - Kowligy, Abijith AU - Lind, Alexander AU - Hickstein, Daniel AU - Carlson, David AU - Timmers, Henry AU - Nader, Nima AU - Caldas, Flavio AU - Ycas, Gabriel C2 - Optics Letters DA - 2018-04-05 LA - en PB - Optics Letters PY - 2018 TI - Mid-infrared frequency comb generation via cascaded quadratic nonlinearities in quasi-phase-matched waveguides UR - https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=925122 ER -